CONTENS - International Organization of Plant Biosystematists
CONTENS - International Organization of Plant Biosystematists
CONTENS - International Organization of Plant Biosystematists
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Xth Symposium <strong>of</strong> the <strong>International</strong> <strong>Organization</strong> <strong>of</strong><br />
<strong>Plant</strong> <strong>Biosystematists</strong><br />
2 – 4 July 2008<br />
Vysoké Tatry, Slovakia<br />
<strong>CONTENS</strong><br />
Oral presentations 2<br />
Phylogeography 2<br />
Biogeography 8<br />
Evolutionary processes in European mountain ranges 14<br />
Polyploidy 22<br />
Molecular approaches in plant evolution 33<br />
Ecological factors in plant evolution 38<br />
Evolutionary processes in extra-european mountains 42<br />
Role <strong>of</strong> apomixis in plant evolution 47<br />
Poster presentations 51<br />
1
PHYLOGEOGRAPHY<br />
O 01<br />
Phylogeography <strong>of</strong> arctic-alpine plants - recent advances<br />
Christian Brochmann<br />
National Centre for Biosystematics, Natural History Museum, University <strong>of</strong> Oslo, PO<br />
Box 1172 Blindern, NO-0318 Oslo, Norway. email: christian.brochmann@nhm.uio.no<br />
Many individual species histories <strong>of</strong> arctic-alpine plants have now been inferred<br />
based on various nuclear and cytoplasmic markers. I will review some recent case<br />
studies which have brought new insights into various aspects <strong>of</strong> arctic-alpine<br />
phylogeography, for example by comparing different types <strong>of</strong> molecular markers and<br />
by merging molecular and fossil data. I will also provide an update <strong>of</strong> recent studies<br />
revealing long-distance dispersals and multiple regional colonizations in arctic-alpine<br />
plants, and present some recent advances in comparative arctic-alpine<br />
phylogeography on regional to circumpolar scales. Of particular importance in current<br />
arctic-alpine phylogeography will be to develop stronger links with the<br />
paleoecological community as well as with groups working on predictive species<br />
distribution modeling and GIS-based approaches to analyses <strong>of</strong> genetic data, and to<br />
develop new molecular tools based on the pyrosequencing technology. I will present<br />
results from some ongoing projects demonstrating the potential for coupling <strong>of</strong><br />
genetic data with paleoecological data, for modeling <strong>of</strong> loss <strong>of</strong> genetic diversity<br />
following future climate warming, and for reconstructions <strong>of</strong> past species distributions<br />
based on DNA preserved in permafrost.<br />
2
O 02<br />
Comparative phylogeography <strong>of</strong> Afro-alpine plants inferred from<br />
AFLP and plastid DNA variation<br />
Magnus Popp 1 , Abel Gizaw 1, 2 , Biructawit Bekele 1, 2 , Dorothee Ehrich 1,3 , Adane<br />
Assefa 4 , Sileshi Nemomissa 2 , Mulugeta Kebede 2 , & Christian Brochmann 1<br />
1 National Centre for Biosystematics, Natural History Museum, University <strong>of</strong> Oslo, PO<br />
Box1172 Blindern, NO-0318 Oslo, Norway; 2 Department <strong>of</strong> Biology, Addis Ababa<br />
University, PO Box 3434, Addis Ababa, Ethiopia;<br />
3 Department <strong>of</strong> Biology,<br />
Universitety <strong>of</strong> Tromsø, N-9037 Tromsø, Norway; 4 Department <strong>of</strong> Biology, P.O.Box:<br />
79, Bahir Dar University, Bahir Dar, Ethiopia; magnus.popp@nhm.uio.no,<br />
s.a.gizaw@nhm.uio.no, biructawit.bekele@nhm.uio.no, dorothee.ehrich@ib.uit.no,<br />
adaneas@yahoo.com, nemomssa@bio.aau.edu.et, kmulugetak@yahoo.com,<br />
christian.brochmann@nhm.uio.no<br />
Many studies have addressed the impact <strong>of</strong> the Pleistocene climate fluctuations on<br />
phylogeographic history and structuring <strong>of</strong> intraspecific diversity in the Northern<br />
hemisphere, but there are few such studies on African plants. The Afro-alpine region<br />
in Eastern Africa, consisting <strong>of</strong> isolated high mountains acting as biological ‘sky<br />
islands’, <strong>of</strong>fers a particularly interesting system to address questions such as the<br />
relative importance <strong>of</strong> random long-distance dispersal versus gradual expansion via<br />
montane forest bridges during humid interglacials. We will present some results from<br />
a comparative study <strong>of</strong> the phylogeographic history <strong>of</strong> widespread plants from the<br />
Afro-alpine and Afro-montane zones in the high mountains <strong>of</strong> Eastern Africa. We use<br />
nucleotide sequences from several non-coding plastid DNA regions along with<br />
recently completed AFLP data sets for seven species without obvious mechanisms<br />
for long-distance dispersal: Cerastium afromontanum, Erica arborea, Haplosciadum<br />
abyssinicum, Hypericum revolutum, Lobelia giberroa, Nuxia congesta, and Salvia<br />
merjamie. The relationships inferred from the sequence data are largely congruent<br />
with the AFLP data. Our preliminary results indicate that whereas the genetic<br />
diversity in plants with an Afro-alpine distribution is geographically structured, the<br />
genetic groups discovered in Afro-montane plants are geographically more widely<br />
distributed.<br />
3
O 03<br />
Phylogeographical structure <strong>of</strong> alpine plants in the Carpathians: a<br />
comparative study<br />
Michał Ronikier 1 & Intrabiodiv Consortium 2<br />
1 Institute <strong>of</strong> Botany, Polish Academy <strong>of</strong> Sciences, Lubicz 46, PL-31-512 Kraków,<br />
Poland; e-mail: michal.ronikier@ib-pan.krakow.pl; 2 www.intrabiodiv.eu<br />
The Carpathians belong to major mountain ranges forming the European alpine<br />
system and form a mountain arch extending over ca 400 km. With a comparable<br />
spatial extension but deviating in topography and glacial history, the Carpathians<br />
provide a different system than the European Alps for studying the Quaternary history<br />
<strong>of</strong> alpine plants. Alpine areas form here a discontinuous island system, separated by<br />
large forested and subalpine areas. Unlike the Alps, the Carpathians were not<br />
extensively glaciated during the Quaternary; glaciers developed only locally, while<br />
lower massifs remained ice-free. Only the highest Carpathian ridges, like the Tatra<br />
mountains (the highest massif, 2663 m a.s.l.), showed more extended glaciation. In<br />
contrast, while plant habitats in the Alps were mostly limited to marginal refugia,<br />
alpine areas were extended in the large ice-free and treeless Carpathian ranges,<br />
potentially enabling range extensions for high-mountain plants. In the present study,<br />
populations <strong>of</strong> 14 high-mountain species distributed in alpine habitats across the<br />
Carpathians were studied using AFLP markers to infer their genetic structure.<br />
Additionally, chloroplast DNA sequences were examined in part <strong>of</strong> species to test the<br />
phylogeographical groups detected. Most species were characterized by a significant<br />
phylogeographical structure in the Carpathians and several well-supported regional<br />
groups were detected. A main genetic break supported by results from most taxa<br />
separated Western and South-Eastern Carpathians, following the well-known<br />
phytogeographical boundary. Further genetic groups were found in the SE<br />
Carpathians, suggesting for several species a last glacial isolation in several regional<br />
refugia rather than population expansion potentially favoured by extension <strong>of</strong> ice-free<br />
and treeless areas.<br />
4
O 04<br />
Contrasting phylogeographies inferred for the two alpine sister<br />
species Cardamine resedifolia and C. alpina (Brassicaceae)<br />
Judita Lihová 1 , Tor Carlsen 2 , Christian Brochmann 2 & Karol Marhold 1<br />
1 Institute <strong>of</strong> Botany, Slovak Academy <strong>of</strong> Sciences, Dúbravská cesta 14, SK-845 23<br />
Bratislava, Slovak Republic; judita.lihova@savba.sk<br />
2 National Centre for Biosystematics, Natural History Museum, University <strong>of</strong> Oslo,<br />
P.O. Box 1172 Blindern, NO-0318 Oslo, Norway<br />
Two sister species were studied using AFLPs to address the history <strong>of</strong> disjunctions in<br />
the European alpine system: Cardamine alpina (Alps, Pyrenees) and C. resedifolia<br />
(mountain ranges from Sierra Nevada to the Balkans). We explored differentiation<br />
among their disjunct populations as well as within the contiguous Alpine and<br />
Pyrenean ranges, and compare the phylogeographic histories. Samples <strong>of</strong> the<br />
closely related, predominantly arctic C. bellidifolia were also included in attempt to<br />
explore its origin and postglacial establishment.<br />
In the snow-bed species C. alpina we resolved two strongly divergent lineages, one<br />
Alpine and one Pyrenean, possibly representing cryptic species. While multiple<br />
glacial refugia were invoked in the Pyrenees, we inferred only a single one in the<br />
Maritime Alps - from which postglacial colonization <strong>of</strong> the entire Alps occurred,<br />
accompanied by a strong founder effect. In C. resedifolia the genetic structuring was<br />
rather weak and did not correspond to the main geographic disjunctions. Two<br />
widespread and largely sympatric main genetic groups were found, one <strong>of</strong> them<br />
subdivided into four geographically more restricted groups, with frequent secondary<br />
contacts among them. The conspicuously different histories <strong>of</strong> these two species are<br />
likely associated with their different ecologies. The more abundant habitats available<br />
for C. resedifolia may have increased its probability for gradual migration during<br />
colder periods and for successful establishment after long-distance dispersal,<br />
whereas C. alpina has been more restricted by its dependence on snow-beds.<br />
Surprisingly, the arctic C. bellidifolia formed a very divergent lineage with little<br />
variation, contradicting a scenario <strong>of</strong> recent, postglacial migration <strong>of</strong> this species from<br />
the Alps or Pyrenees. The origin <strong>of</strong> C. bellidifolia likely followed a more complex<br />
scenario, perhaps taking place in the Asian part <strong>of</strong> its distribution area.<br />
5
O 05<br />
Phylogeography on the Balkan Peninsula – examples from Veronica<br />
(<strong>Plant</strong>aginaceae)<br />
Katharina Bardy 1 , Peter Schönswetter 1 , Dirk C. Albach 2 & Manfred A. Fischer 1<br />
1 Department <strong>of</strong> Biogeography and Botanical Garden, Faculty Centre Botany,<br />
University <strong>of</strong> Vienna, Rennweg 14, 1030 Wien, Austria;<br />
katharina.bardy@univie.ac.at, peter.schoenswetter@univie.ac.at,<br />
manfred.a.fischer@univie.ac.at<br />
2 Institute for Special Botany, Johannes Gutenberg-Universität Mainz, Bentzelweg 9,<br />
55099 Mainz, Germany, albach@uni-mainz.de<br />
The Balkan Peninsula is one <strong>of</strong> the hotspots <strong>of</strong> biodiversity in Europe; presumingly<br />
because <strong>of</strong> its role as a refugial area during the Pleistocene ice ages. Additionally,<br />
the Balkan Peninsula was a place for further diversification and formation <strong>of</strong> new<br />
species further enhancing its richness in endemic species.<br />
Up to now, our knowledge <strong>of</strong> the phylogeographic history <strong>of</strong> plant species <strong>of</strong> the<br />
Balkan Peninsula is predominantly based on the study <strong>of</strong> trees. However, most <strong>of</strong> its<br />
species richness is due to herbaceous perennials such as the genus Veronica.<br />
We focus on species from three different subgenera: subgenus Stenocarpon –<br />
growing in alpine habitats – subgenus Pseudolysimachion – occurring on grasslands<br />
– and subgenus Chamaedrys – mainly inhabiting forests. Using genome size<br />
estimation, AFLP fingerprints and cpDNA markers we address the following main<br />
questions: 1) Which taxa form well-defined taxonomic units? 2) Which<br />
phylogeographical patterns do these taxa exhibit on the Balkan Peninsula?<br />
6
O 06<br />
Molecular phylogeography <strong>of</strong> Rhodiola integrifolia (Crassulaceae):<br />
postglacial recolonization <strong>of</strong> western North America<br />
Heidi Guest<br />
University <strong>of</strong> Victoria, Department <strong>of</strong> Biology, P.O. Box 3020 Stn. CSC, Victoria, BC<br />
V8W 3N5, Canada, dessa@uvic.ca<br />
The cyclic contraction and expansion <strong>of</strong> available habitat during the Quaternary<br />
period has strongly influenced patterns <strong>of</strong> genetic variation in plant populations.<br />
Genetic diversity is expected to be high in glacial refugia - such as Beringia, and low<br />
in recently deglaciated areas. The arctic/alpine plant Rhodiola integrifolia is found at<br />
high latitudes from northwestern North America to northeastern Asia and extends<br />
southward along mountain ranges on both continents. To explore its genetic diversity<br />
I surveyed variation in the cpDNA psbA-trnH spacer region <strong>of</strong> 69 populations from<br />
western North America (including Alaska, Yukon, British Columbia, Montana,<br />
Wyoming, Colorado and California). Digests with three restriction enzymes (ApoI,<br />
BstXI and MseI) revealed 12 haplotypes over this geographic region. Sequencing <strong>of</strong><br />
the same cpDNA region in a subset <strong>of</strong> samples yielded 28 haplotypes. Of these, nine<br />
were found exclusively within Beringia and five exclusively south <strong>of</strong> the glacial<br />
maximum. Three haplotypes were found both within Beringia and in adjacent<br />
glaciated B.C., Alaska and Yukon, and five were wholly within glaciated southeast<br />
Alaska. Four haplotypes were widespread with disjunct distributions, occurring both<br />
north (within or bordering Beringia), and south <strong>of</strong> the glacial maximum. Two<br />
haplotypes were found within glaciated regions and may have persisted in coastal<br />
refugia. Populations <strong>of</strong> R. integrifolia in western North America appear to have<br />
persisted both north and south <strong>of</strong> the Cordilleran Ice Sheet during the most recent<br />
glaciation, and have subsequently recolonized western Canada primarily from the<br />
north since the last glacial maximum.<br />
7
BIOGEOGRAPHY<br />
O 07<br />
The importance <strong>of</strong> refugia for evolution and biogeography <strong>of</strong> alpine<br />
and arctic-alpine plants<br />
Andreas Tribsch<br />
Department <strong>of</strong> Organismic Biology, University <strong>of</strong> Salzburg, Hellbrunnerstrasse 34,<br />
5020 Salzburg, Austria; andreas.tribsch@sbg.ac.at<br />
During severe climatic changes only populations <strong>of</strong> those organisms survive that are<br />
able to migrate to suitable habitats, to adapt to the new environment quickly or that<br />
live in environmentally stable regions. An area where living conditions are suitable<br />
and stable throughout climatic fluctuations are <strong>of</strong>ten termed refugium. Stability is<br />
usually a factor in areas less affected by natural climatic changes, like in<br />
mountainous areas, where altitudinal migrations <strong>of</strong> populations are easily possible.<br />
Several studies where published that deal with the relevance <strong>of</strong> refugia in Europe for<br />
explaining distribution and phylogeographic patterns and the paradigm that refugia<br />
where mainly situated in the main Mediterranean peninsulas was created. Recently<br />
this view has been changed, although strong support for Northern refugia far beyond<br />
these areas is still limited. In my presentation I would like to show the relevance <strong>of</strong><br />
the European mountains and some areas in the Arctic as refugia by discussing<br />
published and own phylogeographic data on several alpine and arctic-alpine plants.<br />
Moreover I will explain that potential refugia, where organisms where potentially able<br />
to survive climatic changes should be discriminated from realized refugia that are<br />
supported by biological data. Knowing the location <strong>of</strong> such realized refugia hold a key<br />
for our understanding <strong>of</strong> many (intraspecific) phylogeographic pattern found, but does<br />
not explain the evolutionary significance wholly. The question, whether<br />
phylogeographic patterns are stable simply because <strong>of</strong> genetic drift and limitation <strong>of</strong><br />
gene-flow or whether phylogroups did already diverge by adaptation to different<br />
habitats associated with refugial patterns as a first step towards speciation remain<br />
open so far and will be important for future research.<br />
8
O 08<br />
Phylogenetic and biogeographical studies <strong>of</strong> alpine species <strong>of</strong><br />
Ranunculus in Eurasia<br />
Khatere Emadzade & Elvira Hörandl<br />
Department <strong>of</strong> Systematic and Evolutionary Botany, University <strong>of</strong> Vienna, Rennweg<br />
14, 1030 Vienna, Austria; emadzadekh@yahoo.com & elvira.hoerandl@univie.ac.at<br />
Ranunculus is the largest genus in Ranunculaceae. It comprises c. 600 species and<br />
is distributed worldwide in all continents. Morphological adaptations enable the genus<br />
to colonize a very broad spectrum <strong>of</strong> habitats, ranging from terrestrial to aquatic,<br />
arctic or alpine areas. The genus has a great diversity <strong>of</strong> species in the Eurasian<br />
mountains. Previous studies on European taxa (Hörandl & al., 2005; Paun & al.,<br />
2005) suggested that European alpines have mostly an autochthonous origin, but the<br />
relationships to the species <strong>of</strong> the Asian mountains remained unclear.<br />
A molecular phylogeny based on DNA sequences <strong>of</strong> the nuclear ITS region and the<br />
plastid matK/trnK region has been worked out to establish the ecological and<br />
geographical clades in a worldwide framework. Biogeo-graphical analysis was<br />
implemented using the program Dispersal – Vicariance Analysis (DIVA).<br />
Biogeographical analyses <strong>of</strong> genus reveal a radiation within the ancient Tethyan<br />
area. Tethyan’s taxa originated in the meridional zone and migrated to temperat and<br />
boreal zones. The mountain species <strong>of</strong> the Mediterranean and western Irano-<br />
Turanian region (East to Hindu Kush) have the same origin but are not related to the<br />
species central Asian mountains (Altai, Himalaya, Tien-shan, Tibet). The central<br />
Asian high mountain species are related to arctic, northern European and North<br />
American species. This clade originated probably in North America and migrated via<br />
a northern route to Eurasia. This geographical differentiation within Eurasia might be<br />
due to different climates, but also to speciation and diversification <strong>of</strong> clades in<br />
different time periods.<br />
9
O 09<br />
Phylogeny and biogeography <strong>of</strong> selected plant groups from the<br />
Balkan Peninsula<br />
Božo Frajman 1 & Peter Schönswetter 2<br />
1 Biology Department, Biotechnical Faculty, University <strong>of</strong> Ljubljana, Večna pot 111, SI-<br />
1000 Ljubljana, Slovenia. E-mail: bozo.frajman@bf.uni-lj.si<br />
2 Department <strong>of</strong> Biogeography and Botanical Garden, University <strong>of</strong> Vienna, Rennweg<br />
14, A-1030 Vienna, Austria. E-mail: peter.schoenswetter@univie.ac.at<br />
The Balkan Peninsula is renowned for its biodiversity and high levels <strong>of</strong> endemism<br />
both among animals and plants. Still, biota <strong>of</strong> some parts <strong>of</strong> the Balkans ranges<br />
among the least known in Europe. Studies using modern molecular approaches are<br />
largely lacking, with the exception <strong>of</strong> some recent phylogenetic and phylogeographic<br />
studies.<br />
One <strong>of</strong> the genera with several endemics described from the Balkans is Heliosperma<br />
(Sileneae, Caryophyllaceae). Phylogenetic and phylogeographic studies using<br />
chloroplast and nuclear DNA sequences as well as AFLP data suggest complex<br />
reticulate patterns and molecular data do not support traditional taxonomic<br />
delimitations within the H. pusillum group. Chloroplast data suggest an old split within<br />
the group, which is geographically correlated. This is not supported by nuclear data,<br />
possibly due to hybridisation between the two groups. Molecular dating suggests a<br />
recent, most probably Pliocene/Pleistocene diversification within the group. On the<br />
contrary, H. macranthum from Montenegro/Albania/Kosovo, is likely <strong>of</strong> more ancient<br />
Tertiary origin. The general assumption that many Balkan endemics are Tertiary<br />
relics has thus to be taken with caution.<br />
Another plant group including several Balkan endemics is the Euphorbia barrelieri<br />
group. Phylogenetic studies using nuclear and chloroplast DNA sequences reveal<br />
patterns different from traditional classifications. ITS data suggest that Euphorbia<br />
barrelieri from Italy is not most closely related to E. barrelieri from the Balkan<br />
Peninsula. Euphorbia nicaeensis and E. glareosa are nested within this group and E.<br />
herzegovina is most closely related to E. nicaeensis. Euphorbia kerneri and E. triflora<br />
are most closely related, whereas E. saxatilis from the Eastern Alps forms an<br />
independent lineage. Additional sampling is needed to corroborate these preliminary<br />
results.<br />
10
O 10<br />
Phytogeographical relationships <strong>of</strong> high-mountain flora in the<br />
Carpathians<br />
Zbigniew Mirek 1 , Gheorge Coldea 2 , Roman Letz 3 , Karol Marhold 3,4 , Halina Piękoś-<br />
Mirkowa 5<br />
1 Institute <strong>of</strong> Botany, Polish Academy <strong>of</strong> Sciences, Lubicz 46, PL-31-512 Kraków,<br />
Poland; 2 Institute <strong>of</strong> Biological Research, Strada Republicii 48, RO-3400 Cluj-<br />
Napoca, Romania; 3 Institute <strong>of</strong> Botany, Slovak Academy <strong>of</strong> Sciences, Dúbravská<br />
cesta 14, SK-845 23 Bratislava, Slovak Republic; 4 Department <strong>of</strong> Botany, Charles<br />
University, Benátská 2, CZ-128 01 Praha 2, Czech Republic; 5 Institute <strong>of</strong> Nature<br />
Conservation Polish Academy <strong>of</strong> Sciences, Al. Mickiewicza 33, PL-31-120 Kraków,<br />
Poland.<br />
Based on distribution <strong>of</strong> high mountain vascular plant species in the Carpathians<br />
most important phytogeographical phenomena are characterised and discussed<br />
relying on multi-varied numerical analyses.<br />
These include:<br />
‐ patterns <strong>of</strong> distribution discernible within high mountain flora <strong>of</strong> the<br />
Carpathians in relation to main phytogeographical elements,<br />
‐ endemism, with special concern to categories <strong>of</strong> endemic species,<br />
‐ division <strong>of</strong> the Carpathians into natural phytogeographical units and floristic<br />
entity <strong>of</strong> these units reflected in distinctiveness <strong>of</strong> high mountain flora,<br />
‐ evident floristic gap and conspicuous differences between western and southeastern<br />
Carpathians,<br />
‐ clear gaps between eastern and southern parts <strong>of</strong> the Carpathians with some<br />
other floristic discontinuities found among these two parts; apart <strong>of</strong> that<br />
gradual changes along the arch <strong>of</strong> the Carpathians from South to the North<br />
and from East to the West have been observed.<br />
Some general relationships with high mountain flora with Alps are drawn.<br />
11
O 11<br />
When phylogeography meets biogeography: Inter- and intraspecific<br />
differentiation and genetic diversity in alpine plants<br />
Conny Thiel-Egenter 1 , Felix Gugerli<br />
1 , Nadir Alvarez 2 , Thorsten Englisch 3 , Rolf<br />
Holderegger 1 & IntraBioDiv-Consortium 4<br />
1 Swiss Federal Research Institute WSL, Zürcherstrasse 111, CH-8903 Birmensdorf,<br />
Switzerland; conny.thiel@wsl.ch, 2 Laboratoire de Botanique Evolutive Université de<br />
Neuchâtel 11, rue Emile-Argand CH-2007 Neuchâtel, Switzerland;<br />
nadir.alvarez@unine.ch, 3 Department <strong>of</strong> Biogeography, Institute <strong>of</strong> Botany, University<br />
<strong>of</strong> Vienna, Rennweg 14, A-1030 Vienna, Austria; thorsten.englisch@univie.ac.at &<br />
4 www.intrabiodiv.eu/IMG/pdf/IntraBioDiv_Consortium_v10.pdf<br />
There is a long history <strong>of</strong> studying the flora in the European Alps and its<br />
biogeography. Since the early 19 th century, scientists have attempted to localize<br />
floristically similar regions and its delimitations. Here, we propose a new approach to<br />
geographically identify biogeographic breaks. We use an exhaustive dataset <strong>of</strong> the<br />
distribution <strong>of</strong> alpine plant species, compiled within the project IntraBioDiv. Data on<br />
species occurrences refer to a regular spatial grid across the whole range <strong>of</strong> the Alps.<br />
On the same grid, we assessed the genetic structure <strong>of</strong> several widely distributed<br />
alpine plant species to identify common phylogeographic breaks. We found that<br />
biogeographic and phylogeographic breaks were largely congruent, indicating that<br />
historical processes acted at both the genetic and the species level in the same<br />
direction. We further assessed genetic diversity <strong>of</strong> these plant species in the Alps and<br />
the Carpathians to test the influence <strong>of</strong> various species traits, elevation and<br />
phylogeographic history on genetic diversity. Species dispersed and pollinated by<br />
wind showed higher genetic diversity than species with self or insect pollination and<br />
animal or gravity dispersal. Genetic diversity was generally lower in the Carpathians<br />
than in the Alps, due to higher topographical isolation <strong>of</strong> alpine habitats in the<br />
Carpathians and this mountain massif’s divergent phylogeographic history. Elevation<br />
did not influence genetic diversity, challenging the long-held view <strong>of</strong> decreasing<br />
genetic diversity with increasing elevation in mountain plants.<br />
12
O 12<br />
Did vascular plants and bryophytes survive the last glaciation in<br />
Scandinavia?<br />
Kristine Bakke Westergaard 1,2 , Magnus Popp 2 , Kjell Ivar Flatberg 3 , Inger Greve<br />
Alsos 4 , Torstein Engelskjøn 1 & Christian Brochmann 2<br />
1 Tromsø University Museum, University <strong>of</strong> Tromsø, N-9037 Tromsø, Norway,<br />
2 Natural History Museum, University <strong>of</strong> Oslo, P.O. Box 1172 Blindern, N-0318 Oslo,<br />
Norway<br />
3 Museum <strong>of</strong> Natural History and Archaeology, Norwegian University <strong>of</strong> Science and<br />
Technology, N-7491 Trondheim, Norway 4 The University Centre in Svalbard, P.O.<br />
Box 156, N-9171 Longyearbyen, Norway; kristine.westergaard@tmu.uit.no,<br />
magnus.popp@nhm.uio.no, kjell.flatberg@vm.ntnu.no, ingera@unis.no,<br />
torstein.engelskjon@tmu.uit.no, christian.brochmann@nhm.uio.no<br />
Glacial survival vs. postglacial immigration <strong>of</strong> the Scandinavian alpine flora has been<br />
debated for more than 100 years, and has recently received increased attention with<br />
the development <strong>of</strong> molecular tools. Several vascular plant species occur disjunctly<br />
on both sides <strong>of</strong> the North Atlantic Ocean, but are lacking from areas east- and<br />
westwards. A subset also absent in the Alps, the so-called ‘west-arctic’ species, has<br />
been considered to provide the strongest evidence for local survival in Scandinavia at<br />
least through the last glaciation. Bryophytes have never attained weight in this<br />
discussion, even though many <strong>of</strong> them are exceptionally hardy and therefore more<br />
likely as in situ survivors. Using AFLPs, cpDNA markers and low-copy nuclear gene<br />
data, we carry out a comparative phylogeographic analysis <strong>of</strong> some <strong>of</strong> these species<br />
to test whether the Scandinavian populations originate from recent (postglacial)<br />
cross-oceanic dispersal from the west, and/or whether they descend from long-term<br />
glacial in situ survivors. This talk will focus on the results from studies on three highly<br />
disjunct species. First, AFLP and cpDNA data from the arctic Saxifraga rivularis s.l.<br />
represents the first case study contributing extensive molecular data to investigate<br />
the extreme biogeographical disjunction between the amphi-Beringian and the<br />
amphi-Atlantic areas. Second, cpDNA data from the ‘west-arctic’ Arenaria humifusa<br />
reveals little variation in the amphi-Atlantic area. Third, preliminary cpDNA data from<br />
the most extreme ‘west-arctic’ and dioecious Carex scirpoidea will be presented.<br />
13
EVOLUTIONARY PROCESSES IN EUROPEAN MOUNTAIN<br />
RANGES<br />
O 13<br />
Primula sect. Aleuritia: a paradigm <strong>of</strong> hybrid speciation via<br />
secondary contact<br />
Elena Conti<br />
University <strong>of</strong> Zurich, Institute for Systematic Botany, Zollikerstrasse 107, Zuerich,<br />
8008, ContiElena@access.unizh.ch<br />
Hybridization, <strong>of</strong>ten followed by polyploidization, represents one <strong>of</strong> the most<br />
important modes <strong>of</strong> speciation in plants, especially in arctic/alpine systems, probably<br />
because the repeated habitat fragmentation caused by advancing and retreating<br />
glaciers during the Pleistocene created many opportunities for secondary contact<br />
between partially differentiated populations. Primula, a circumboreal genus with high<br />
species diversity and variation <strong>of</strong> ploidy levels and breeding systems, is an ideal<br />
group to study the effects <strong>of</strong> climate change on species distribution, reproductive<br />
biology, and speciation modes at different evolutionary scales. Detailed phylogenetic<br />
analyses <strong>of</strong> Primula, sect. Aleuritia revealed that switches to polyploidy and<br />
homostyly co-occurred in the group, possibly as a result <strong>of</strong> recombination at the<br />
heterostyly linkage group caused by genomic rearrangements associated with<br />
polyploidization. The higher success <strong>of</strong> the autogamous polyploid species <strong>of</strong> sect.<br />
Aleuritia at recolonising habitats freed by glacial retreat might be explained in terms<br />
<strong>of</strong> selection for reproductive assurance. Analyses <strong>of</strong> DNA sequences from the<br />
chloroplast and nuclear genomes, in combination with chromosome in situ<br />
hybridization studies, revealed that the amphi-Beringian tetraploid P. egaliksensis<br />
evolved via inter-sectional hybridization from a North American maternal parent and<br />
an Asian paternal parent and that most ITS sequences <strong>of</strong> the tetraploid hybrid were<br />
homogenized towards the paternal repeat.<br />
14
O 14<br />
Gentianella (Gentianaceae): A model taxon for evolution in the<br />
European mountains<br />
Josef Greimler<br />
Systematic and Evolutionary Botany, Faculty Center Botany, University <strong>of</strong> Vienna, A-<br />
1030 Vienna, Rennweg 14, Austria<br />
Members <strong>of</strong> the large genus Gentianella occur on every continent. Taxa <strong>of</strong> the<br />
fimbriate section Gentianella are distributed in the northern latitudes and mountain<br />
ranges <strong>of</strong> North America and Eurasia. The European taxa occur in various<br />
grasslands and open forests throughout the continent and provide a good model<br />
group for investigating processes <strong>of</strong> evolution and speciation. The highest diversity<br />
within this group is found in the Alps and their periphery. Most <strong>of</strong> these ca. 20<br />
European taxa are highly variable due to ecological polymorphism among<br />
populations in different habitats, due to seasonal dimorphism within and among<br />
populations, and probably due to high plasticity at populational and individual levels.<br />
Shifts in resource allocation from the vegetative to the reproductive part and seed<br />
size variation might indicate adaptations to the mountain habitats. Investigations from<br />
reproductive biology, common garden experiments, morphology, nrDNA, cpDNA, and<br />
AFLP reveal a variety <strong>of</strong> evolutionary trends and various processes that can lead to<br />
incipient speciation. In contrast to morphology, genetic data show clear differentiation<br />
into two cryptic species within one widespread taxon. These allopatric cryptic or<br />
sibling species appear to have been separated by Pleistocene climatic oscillations.<br />
The glacial oscillations are obviously responsible for weakly differentiated peripatric<br />
narrow endemic variants in the Southern Alps. Reticulate patterns among taxa seem<br />
to be common and have been investigated in the Northeastern Alps. Seasonal<br />
dimorphism resulting from more recent historical human impact may lead to<br />
sympatric speciation.<br />
15
O 15<br />
Evolving towards the tops: phylogeny and evolution <strong>of</strong> the<br />
European endemic Phyteuma (Campanulaceae)<br />
Gerald M. Schneeweiss 1 , Michael Barfuss 2 , Mike Thiv 3<br />
1 Department <strong>of</strong> Biogeography and Botanical Garden, University <strong>of</strong> Vienna, Rennweg<br />
14, A-103 Vienna<br />
2 Department <strong>of</strong> Systematic and Evolutionary Botany, University <strong>of</strong> Vienna, Rennweg<br />
14, A-103 Vienna<br />
3 Department <strong>of</strong> Botany, Federal Natural History Museum Stuttgart, Rosenstein 1, D-<br />
70191 Stuttgart<br />
Phyteuma comprises c. 20 species endemic to Europe and is morphologically<br />
characterized by its peculiar flower morphology with long and narrow corolla lobes<br />
remaining attached distally and separating only late in anthesis. Phyteuma species<br />
occur in different habitats, ranging from lowland woodlands via mid-elevation rock<br />
crevices to alpine grasslands and subnival tundra, rendering it a good model system<br />
to investigate habitat evolution in a comprehensive phylogenetic context. To this end,<br />
we established a sound hypothesis on the relationships among all Phyteuma species<br />
based on phylogenetic analysis <strong>of</strong> 4.3 kb sequence data from the plastid (trnL-intron<br />
and trnL-trnF spacer, trnK-intron including the matK gene) and the nuclear genome<br />
(ITS). Phyteuma is a well supported monophyletic group and is sister to the SE<br />
Alpine endemic Physoplexis. Within Phyteuma, two clades are found, largely<br />
corresponding to previously recognized sections, which were delimited by the<br />
distribution <strong>of</strong> different inflorescence types (spikes vs. capitulae). The majority <strong>of</strong><br />
currently recognized species are confirmed as separate lineages, while in others,<br />
most notably Ph. globulariifolium and Ph. scheuchzeri, current taxonomy does not<br />
adequately reflect lineage diversity. Using this phylogenetic framework, habitat<br />
evolution is analyzed under the assumptions that habitat evolution correlates either<br />
with the amount <strong>of</strong> molecular evolution (phylogram branch lengths) or with time<br />
(branch length <strong>of</strong> an ultrametric tree). Although the morphologically more primitive<br />
taxa occur in woodlands, there is no evidence that this habitat was the ancestral one<br />
for the genus, but rather the ancestor <strong>of</strong> Phyteuma was a chasmophyte,<br />
alpine/subnival habitats being clearly derived.<br />
16
O 16<br />
Crocus - Evolution and domestication<br />
Marian Ørgaard & Niels Jacobsen<br />
Department <strong>of</strong> Ecology, Faculty <strong>of</strong> Life Sciences, University <strong>of</strong> Copenhagen,<br />
Rolighedsvej 21, DK-1958 Frederiksberg C (Copenhagen), Denmark<br />
Crocus belongs to the family Iridaceae and includes more than 80 species. The<br />
genus is mainly found in the northern Mediterranean region, especially towards the<br />
Middle East. Crocus exhibits a large inter- and intraspecific variation regarding<br />
morphology, cytogenetics and molecular composition. The chromosome numbers<br />
vary from 2n = 6 to 2n = 64 and this variation is also to be found intraspecifically, e.g.<br />
at the subspecies and even population level. Crocus vernus s.l. has a wide<br />
distribution from Spain to easternmost Europe with reported chromosome numbers<br />
varying from 2n = 8 to more than 20. Crocus biflorus s.l. represents the one species<br />
with the most variation encountered. Chromosome numbers range from 2n = 8 to 28<br />
and vary at the subspecies and population level. These cyto-/ecotypes are <strong>of</strong>ten<br />
confined geographically to mountain peaks and ranges. Natural hybridization<br />
between populations and species occurs and give rise to new genotypes and<br />
eventually new species. Variation in chromosome numbers can be explained by the<br />
“Triploid Pathway”. Expression <strong>of</strong> diversity can be speeded up when plants from<br />
different geographical areas are taken into cultivation and allowed to hybridize<br />
through open pollination. This has resulted in more than 200 Crocus cultivars<br />
altogether.<br />
The diversity is registered in morphological appearance, DNA polymorphism (e.g.<br />
results from RFLP, AFLP, in situ hybridization, DNA sequencing), chromosome<br />
number and crossability.<br />
17
O 17<br />
Refuges within refuges: evolutionary complex patterns in southern<br />
Spanish mountain ranges<br />
Gonzalo Nieto Feliner<br />
Real Jardín Botánico, CSIC, Plaza de Murillo 2, 28014 Madrid, Spain<br />
The phylogeographic literature is filled with interpretations <strong>of</strong> current genetic patterns<br />
based on the contraction/expansion model forced by the climatic oscillations during<br />
the last two million years. But <strong>of</strong> the wealth <strong>of</strong> scientific studies accumulated along<br />
the last two decades, particularly in Europe, we only understand reasonably well<br />
those referred to higher latitudes. This is because evolutionary histories in those<br />
latitudes resemble a model in which in each climatic cycle most traces from the<br />
previous one are erased. In southern European ranges (or in general, in those places<br />
where ice effects were less severe) the situation is fairly different and to some extent<br />
opposite. These regions are referred to as refuges due to the long-time recognised<br />
fact that they contain more genetic diversity than elsewhere. But this is due not only<br />
to an accumulation <strong>of</strong> genotypes from other places escaping from extinction but to a<br />
number <strong>of</strong> processes that operated on them, including the mixing <strong>of</strong> different<br />
genotypes. Additional sources <strong>of</strong> complexity come from the predominance <strong>of</strong><br />
mountain ranges in the southern European landscape – adding an altitudinal<br />
migration component to the latitudinal one imposed by climatic changes – and the<br />
patchy nature <strong>of</strong> landscape. The overall consequences are that there is no general<br />
phylogeographic pattern in these regions and that just speaking <strong>of</strong> refuges to refer to<br />
southern regions is an oversimplification. These ideas will be illustrated with data<br />
generated in the last years from various plant groups, which allow, at most, the<br />
identification <strong>of</strong> the processes involved but not the recognition <strong>of</strong> a single<br />
phylogeographic pattern for the so-called southern refuges.<br />
18
O 18<br />
Is hybridization between Pinus sylvestris and P. uncinata expressed<br />
in morphological traits?<br />
Anna K. Jasińska & Witold Wachowiak<br />
Institute <strong>of</strong> Dendrology, Polish Academy <strong>of</strong> Sciences, Parkowa 5, 62-035 Kórnik,<br />
Poland; jasiak9@wp.pl, witoldw@man.poznan.pl<br />
Scots pine (Pinus sylvestris L.) and P. uncinata DC. are closely related species and<br />
they <strong>of</strong>ten create mixed forest stand. The aim <strong>of</strong> this study was to investigate the<br />
natural hybridisation <strong>of</strong> these pine species and answer the question if hybrids can be<br />
recognized using morphological and anatomical traits? Two year-old needles were<br />
collected from individuals from mixed and isolated populations from the Perenees in<br />
Spain and Andorra and from the Central Massive in France. Morpholological and<br />
anatomical analyses show that P. uncinata differs at statistically significant level from<br />
P. sylvestris in a few traits, mostly by the number <strong>of</strong> the resin canals, shape <strong>of</strong><br />
epiddermis cell and the vascular bundles distance. Hybrids origin <strong>of</strong> several<br />
individuals was confirmed with the application <strong>of</strong> the species specific cpDNA<br />
markers. The influence <strong>of</strong> hybridisation for morphological and anatomical traits is<br />
discussed.<br />
19
O 19<br />
Species-genetic diversity correlation in the European alpine<br />
grasslands dominated by Carex curvula<br />
Mihai Puşcaş 1,3 , Pierre Taberlet 1 , Philippe Choler 1,2<br />
1 Laboratoire d’Ecologie Alpine, UMR CNRS-UJF 5553, Université J. Fourier,<br />
Grenoble I, BP53, 38041 Grenoble, France<br />
2 Station Alpine J. Fourier, UMS CNRS-UJF 2925, Université J. Fourier, Grenoble I,<br />
BP53, 38041 Grenoble, France<br />
3<br />
A. Borza Botanical Garden, Babeş-Bolyai University, 400015 Cluj-Napoca,<br />
Romania<br />
mihai.puscas@e.ujf-grenoble.fr, pierre.taberlet@ujf-grenoble.fr, philippe.choler@ujfgrenoble.fr<br />
The distributional range <strong>of</strong> alpine plants experienced dramatic changes during the<br />
Quaternary ice ages. These changes <strong>of</strong>fer many opportunities for studying the impact<br />
<strong>of</strong> habitat contraction and fragmentation on both species and genetic diversity. Here,<br />
we examined the AFLP-based genetic diversity in the sedge Carex curvula All. in<br />
relation to the species diversity <strong>of</strong> siliceous European alpine grasslands in which the<br />
sedge is dominant. We found no relationship or even a negative relationship between<br />
genetic and species diversity indices. Local species richness was associated with the<br />
regional pool size <strong>of</strong> siliceous alpine species, which was itself dependent on the<br />
extant area <strong>of</strong> suitable habitats for these species. Genetic diversity <strong>of</strong> C. curvula was<br />
primarily shaped by the presumed location <strong>of</strong> glacial refugia and the routes <strong>of</strong> postglacial<br />
colonization. We conclude that the two levels <strong>of</strong> diversity are not positively<br />
correlated because genotypes and species do not respond similarly to the spatial<br />
dynamics <strong>of</strong> suitable habitats induced by Quaternary temperature changes.<br />
20
O 20<br />
Evolutionary studies in a group <strong>of</strong> high mountain Artemisia<br />
(Asteraceae, Anthemideae): molecular cytogenetic, phylogenetic<br />
and genome size data<br />
Sònia Garcia 1 , Teresa Garnatje 1 , Oriane Hidalgo 1 , Jaume Pellicer 2 , Sonja Siljak-<br />
Yakovlev 3 , Joan Vallès 2<br />
1 Institut Botànic de Barcelona (CSIC-ICUB), Passeig del Migdia s/n, 08038<br />
Barcelona, Catalonia, Spain; sphaeromeria@gmail.com, tgarnatje@ibb.csic.es,<br />
orianehidalgo@ibb.csic.es 2 Laboratori de Botànica, Facultat de Farmàcia, Universitat<br />
de Barcelona, Av. Joan XXIII s/n, 08028 Barcelona, Catalonia, Spain;<br />
jaumepellicer@ub.edu, joanvalles@ub.edu 3 Écologie, Systématique, Évolution, UMR<br />
CNRS 8079, Université Paris-Sud, bâtiment 360, 91405 Orsay Cedex, France;<br />
sonia.yakovlev@u-psud.fr<br />
The genus Artemisia encompasses some European and west Asian orophytic taxa,<br />
mostly belonging to the subgenus Absinthium, which can be called the Artemisia<br />
umbelliformis complex. This dysploid-polyploid group is distributed from Sierra<br />
Nevada to Central Asian mountains, through the Pyrenees, the Alps and the<br />
Caucasus. Some taxa <strong>of</strong> the group have been largely studied from several<br />
viewpoints, including cytogenetic and biogeographic, but a study involving the whole<br />
complex is lacking and several critical questions regarding its origin and the<br />
relationships between its members still remain unclear. In the framework <strong>of</strong> our<br />
researches on genome organization and evolution in Artemisia and related genera,<br />
we are presenting the results on a dozen taxa (orophytic and their close relatives),<br />
including a molecular phylogenetic reconstruction, chromosome counts, fluorochrome<br />
banding, fluorescent in situ hybridization (FISH) and genome size assessment. On<br />
the light <strong>of</strong> the data obtained, hypotheses are discussed on the origin <strong>of</strong> the dysploidy<br />
(appeared several times in the genus) and <strong>of</strong> polyploid species (through independent<br />
or recurrent events involving the extant diploid taxa and/or some extinct diploid<br />
precursors). Genome size differences have been detected between disjunct<br />
populations <strong>of</strong> the same species, suggesting ongoing diversification processes linked<br />
to geographical isolation.<br />
21
POLYPLOIDY<br />
O 21<br />
Polyploidy and angiosperm diversification<br />
Douglas E. Soltis<br />
Department <strong>of</strong> Botany, University <strong>of</strong> Florida, Gainesville, FL 32611, USA<br />
The importance <strong>of</strong> polyploidy as a major force in angiosperm evolution has long been<br />
recognized. Recent genomic studies have provided important new insights into<br />
polyploid evolution in the flowering plants. The question is no longer “what proportion<br />
<strong>of</strong> angiosperms are polyploid”, but “how many episodes <strong>of</strong> polyploidy characterize<br />
any given lineage.” Through the interplay <strong>of</strong> genomic and phylogenetic approaches,<br />
we are on the verge <strong>of</strong> determining the frequency <strong>of</strong> ancient polyploidy events<br />
throughout angiosperm history. A series <strong>of</strong> investigations suggest that ancient<br />
polyploidy may be ubiquitous among angiosperms; these studies also reveal a<br />
number <strong>of</strong> ancient genome doubling events in the flowering plants. These ancient<br />
events include genome duplication in basal angiosperm lineages, as well as a<br />
proposed paleohexaploid event that may have occurred close to the origin <strong>of</strong> the<br />
eudicot clade. Interestingly, however, there is so far no evidence <strong>of</strong> ancient polyploidy<br />
in Amborella, the sister to all other living angiosperms. A major challenge that<br />
biologists now face is to reconstruct the ancestral genomes <strong>of</strong> lineages prior to<br />
genome duplication. Using new algorithms, it may be possible to reconstruct the<br />
ancestral eudicot genome or even the ancestral angiosperm genome. A major<br />
question has long been, does polyploidy promote species richness? Comparisons <strong>of</strong><br />
species diversification rates suggest that ancient polyploidy has indeed resulted in a<br />
dramatic increase in species richness in several angiosperm lineages, including<br />
Poaceae, Solanaceae, Fabaceae, and Brassicaceae. However, additional genomic<br />
studies are needed to pinpoint the exact phylogenetic placement <strong>of</strong> the ancient<br />
polyploidy events within these lineages.<br />
22
O 22<br />
Polyploid evolution and ecological differentiation in Senecio<br />
carniolicus (Asteraceae)<br />
Peter Schönswetter<br />
Department <strong>of</strong> Biogeography and Botanical Garden, University <strong>of</strong> Vienna, Rennweg<br />
14, A-1030 Vienna, Austria; peter.schoenswetter@univie.ac.at<br />
Senecio carniolicus (Asteraceae), a frequent element <strong>of</strong> acidophilic alpine meadows<br />
<strong>of</strong> the Eastern Alps and the Carpathians, was previously believed to be uniformly<br />
hexaploid. A recent study, however, revealed the existence <strong>of</strong> three main cytotypes<br />
(diploid, tetraploid and hexaploid cytotypes) within the distribution area <strong>of</strong> S.<br />
carniolicus in the Eastern Alps, but also frequent cytotype-mixture within populations.<br />
Another study, focussing on an altitudinal gradient on a mountain slope where di- and<br />
hexaploids are known to co-occur, suggested a narrow altitudinal range <strong>of</strong> the<br />
hexaploid cytotype in the low-alpine belt and a much wider range <strong>of</strong> the diploid one,<br />
spanning both low-alpine and high alpine zones.<br />
In my presentation I will summarise published results and present a new project<br />
exploring origin and maintenance <strong>of</strong> intrapopulational cytotype mixture in S.<br />
carniolicus following two complementary research avenues. First, origin and<br />
evolutionary relationships among different cytotypes will be investigated in both<br />
space and time using a phylogenetic and phylogeographic approach based on DNA<br />
sequence and AFLP fingerprint data, supplemented by molecular cytogenetic and<br />
genome size data. The following aspects will be addressed: (1) Origin <strong>of</strong> polyploids<br />
and cytotype mixture, (2) phylogeographic patterns within and across cytotypes, (3)<br />
chromosomal re-organisation accompanying polyploidisation.<br />
Second, mechanisms for maintenance <strong>of</strong> the cytotype mixture will be explored with<br />
respect to the potential role <strong>of</strong> several pre- and postzygotic isolation mechanisms.<br />
Microsite analysis (analysis <strong>of</strong> surrounding vegetation), phenological observations<br />
with reciprocal transplantations, cross-pollination and germination experiments will be<br />
employed to address the following aspects: (4) habitat segregation and ecological<br />
displacement, (5) flowering time differences and flowering time displacement, and (6)<br />
postzygotic isolation mechanisms.<br />
23
O 23<br />
Biosystematic study <strong>of</strong> the Pilosella alpicola group (Asteraceae,<br />
Lactuceae) – from taxonomy to adaptive evolution<br />
Barbora Šingliarová 1 & Patrik Mráz 2<br />
1 Institute <strong>of</strong> Botany, Slovak Academy <strong>of</strong> Sciences, Dúbravská cesta 14, SK-845 23<br />
Bratislava, Slovak Republic, barbora.singliarova@savba.sk &<br />
2 Département de<br />
Biologie, Unité d`Ecologie & Evolution, Université de Fribourg, CH-1700 Fribourg,<br />
Switzerland, patrik.mraz@unifr.ch<br />
The Pilosella alpicola group displays a polydisjunctive distributional pattern across<br />
high European ranges (Alps, Carpathians, Balkan mountains). Six subspecies have<br />
been traditionally recognized within the group. Present morphometric study including<br />
populations from the whole range revealed four morphologically well-separated<br />
allopatric taxa. Significant taxon-specific ploidy level variation was detected. While P.<br />
ullepitschii and P. glandulifolia are exclusively diploid taxa, P. rhodopea and P.<br />
alpicola s.str. possess four and three different cytotypes respectively, in ploidy-mixed<br />
populations. Allozymic variation reflects reproduction mode <strong>of</strong> the particular ploidy<br />
level. Although diploid sexually reproducing plants display much higher genetic<br />
variation (e.g. proportion <strong>of</strong> different multilocus genotypes) than polyploids<br />
reproducing mostly apomictically, the latter ones <strong>of</strong>ten harbour the alleles which are<br />
rare or missing in corresponding diploid cytotype. Thus, the polyploids might serve as<br />
a stock <strong>of</strong> alleles fixed by apomictic reproduction. Absolute DNA content downsizing<br />
found in the diploid cytotype is significantly correlated with decreasing precipitation<br />
during growing season. Cline variation was observed in some physiological traits<br />
relating to water-use efficiency such as specific leaf area, percentage <strong>of</strong> leaf carbon<br />
and ∆ 13 C. Interestingly, the morphological characters discriminating particular taxa<br />
and considered as important phenotypic traits involved in evapotranspiration, such as<br />
density and colour <strong>of</strong> indumentum, show similar pattern. Clothing and stellate<br />
trichomes are more dense and brighter in taxa growing in southern ranges with lower<br />
precipitation during vegetation season. Our findings can be explained by adaptive<br />
speciation operating in allopatry among closely related taxa.<br />
24
O 24<br />
Species delimitation in a complex polyploid group - Papaver section<br />
Meconella<br />
Heidi Solstad, Christian Brochmann & Reidar Elven<br />
National Centre for Biosystematics, Natural History Museum, University <strong>of</strong> Oslo, P.O.<br />
Box 1172 Blindern, NO-0318 Oslo, Norway, heidi.solstad@nhm.uio.no<br />
The arctic and alpine poppies – Papaver section Meconella – constitute a<br />
widespread mainly polyploid group <strong>of</strong> about 70-80 species. The group is notorious for<br />
its taxonomic problems. Several attempts have not resulted in any consensus as to<br />
number <strong>of</strong> species or their relationships. The treatments currently applied in different<br />
regions are largely incompatible. We investigated phylogenetic relationships and<br />
species delimitation using DNA sequences <strong>of</strong> plastid regions, ITS and a low copy<br />
nuclear region (RPA2), AFLPs, morphological analysis, and ploidy variation by flow<br />
cytometry and chromosome counts. The phylogenetic relationships within section<br />
Meconella remain, however, still largely unresolved, probably due to very recent<br />
evolution and extensive reticulation by hybridization and polyploidization. AFLP<br />
analysis <strong>of</strong> a subset <strong>of</strong> the section identified 30-40 more or less distinct entities,<br />
supported by morphological and ploidy consistency as corresponding to species or<br />
subspecies, but only partly reflecting current taxonomic solutions. Some <strong>of</strong> the<br />
conclusions are that recognition <strong>of</strong> three North European species (P. radicatum, P.<br />
lapponicum and P. dahlianum s.str.) is supported, that the two former have unclear<br />
links to other species, and that P. dahlianum s.l. is closely related to a Beringian<br />
species. The AFLP data indicate high species diversity in northeastern Asia and<br />
northwestern North America, in America distinctly higher than the number <strong>of</strong> currently<br />
recognized and named species.<br />
25
O 25<br />
Recurrent allopolyploidization in Brassicaceae<br />
Kentaro Shimizu 1 , Rie Shimizu-Inatsugi 1,2 , Hiroshi Kudoh 2 , Judita Lihová 3 & Karol<br />
Marhold 3,4<br />
1 Institute <strong>of</strong> <strong>Plant</strong> Biology, University <strong>of</strong> Zurich, Zollikerstrasse 107, CH-8008,<br />
Switzerland; shimizu@botinst.uzh.ch, inatsugi@botinst.uzh.ch,<br />
2 Center for Ecological Research, Kyoto University, Hirano, Ohtsu, Shiga, 520-2113,<br />
Japan, kudoh@kobe-u.ac.jp<br />
3 Institute <strong>of</strong> Botany, Slovak Academy <strong>of</strong> Sciences, Dúbravská cesta 14, SK-845 23<br />
Bratislava, Slovak Republic; judita.lihova@savba.sk, karol.marhold@savba.sk &<br />
4 Department <strong>of</strong> Botany, Charles University, Benátská 2, CZ-128 01 Praha 2, Czech<br />
Republic<br />
Although polyploidy is widespread, parental species are not known in most <strong>of</strong> the<br />
cases. Chloroplast and ITS sequences may be incongruent or have inadequate<br />
information. However, the sequencing <strong>of</strong> nuclear single genes is not a trivial task.<br />
Cloning procedures may be used to separate the mixtures <strong>of</strong> homoeologue<br />
sequences, but the number <strong>of</strong> clones containing artificial recombinants can be quite<br />
high (0-89%) and thus much effort is needed to distinguish true sequences from<br />
artificial recombinants. We developed a rapid method to design homeolog-specific<br />
primers. First, the mixture <strong>of</strong> homoeologues is amplified using universal primers, and<br />
the promoter region was directly sequenced. A short readable portion is <strong>of</strong>ten<br />
followed by a portion with overlaid peaks, which was presumably caused by smallscale<br />
insertion/deletion differences between the homoeologues. The primers<br />
embracing the detected insertion/deletion difference would, in this case, be<br />
homoeologue-specific ones.<br />
Cardamine is one <strong>of</strong> the largest genera in Brassicaceae with >200 species. We found<br />
that allopolyploidy occurred repeatedly and explored new niche. Evolutionary and<br />
ecological significance <strong>of</strong> the polyploidy will be discussed. We will also discuss about<br />
polyploid taxa <strong>of</strong> Arabidopsis living in mountainous and alpine habitats.<br />
References<br />
Shimizu, K.K., Fujii, S., Marhold, K., Watanabe, K., Kudoh, H. (2005). Arabidopsis<br />
kamchatica (Fisch. ex DC.) K. Shimizu & Kudoh and A. kamchatica subsp.<br />
kawasakiana (Makino) K. Shimizu & Kudoh, new combinations. Acta Phytotax.<br />
Geobot. 56: 165-174.<br />
Lihova, J., Shimizu, K. K., Marhold, K. (2006). Allopolyploid origin <strong>of</strong> Cardamine<br />
asarifolia (Brassicaceae): Incongruence between plastid and nuclear ribosomal DNA<br />
sequences solved by a single-copy nuclear gene. Mol. Phylogenet. Evol. 39: 759-<br />
786.<br />
26
O 26<br />
Phylogeography and polyploid evolution in the white-rayed<br />
complex <strong>of</strong> Melampodium (Asteraceae)<br />
Carolin Rebernig 1 , Hanna Schneeweiss 1 , Renate Obermayer 1 , Cordula Blöch 1 , José<br />
Villaseñor 2 & Tod Stuessy 1 .<br />
1 Department <strong>of</strong> Systematic and Evolutionary Botany, University <strong>of</strong> Vienna, Austria;<br />
Herbario Nacional, Universidad Nacional Autónoma, Mexico, D.F.<br />
The genus Melampodium (Asteraceae, Heliantheae) consists <strong>of</strong> 39 species<br />
distributed mainly throughout Mexico and Central America. Most species have<br />
flowering heads with yellow rays, except for three shrubby, xerophytic taxa in the<br />
southwestern U.S.A. and adjacent Mexico, M. argophyllum, M. cinereum and M.<br />
leucanthum, which are clearly separated by morphological, distributional, and<br />
ecological features. Molecular populational studies both with AFLPs (six primer<br />
combinations) and chloroplast haplotypes (four markers: psbA-trnH, ndhF-rpL32,<br />
trnQ-rpS16, rpL32-trnL) also support these taxonomic distinctions. Based on<br />
molecular phylogenetic analyses (with nuclear and chloroplast markers), it appears<br />
that the white-rayed complex originated from a yellow-rayed ancestor <strong>of</strong> Series<br />
Cupulata in northwestern Mexico and adjacent Arizona. Within the complex, three<br />
different ploidy levels have been reported: diploid, tetraploid, and hexaploid. While M.<br />
argophyllum is uniformly hexaploid, both diploid and tetraploid cytotypes occur in the<br />
other two species. In this study all individuals analysed for AFLPs and cpDNA<br />
haplotypes have also been examined for ploidy level, which enables formulation <strong>of</strong><br />
hypotheses on evolutionary origin <strong>of</strong> polyploids. In M. leucanthum and M. cinereum<br />
diploids prevail in the western portions <strong>of</strong> their ranges and tetraploids in eastern<br />
sectors. Assignment tests show that tetraploids are <strong>of</strong> autopolyploid origin, and<br />
pollen/ovule ratios strongly indicate xenogamous breeding systems. The hexaploid,<br />
M. argophyllum, appears to be an allopolyploid, with M. cinereum being the paternal<br />
and M. leucanthum the maternal parent.<br />
27
O 27<br />
Participation <strong>of</strong> the high mountainous grass Colpodium versicolor<br />
(Poaceae) in the evolution <strong>of</strong> some Zingeria species<br />
Violetta Kotseruba 1 , Klaus Pistrick 2 , Anahit Ghukasyan 3 , Andreas Houben 2<br />
1<br />
Komarov Botanical Inst., 197376 St. Petersburg, Russia,<br />
viola.kotseruba@gmail.com<br />
2<br />
Leibniz-Institute <strong>of</strong> <strong>Plant</strong> Genetics and Crop <strong>Plant</strong> Research (IPK), 06466<br />
Gatersleben, Germany, pistrick@ipk-gatersleben.de, houben@ipk-gatersleben.de<br />
3 National Botanical Institute <strong>of</strong> Armenia, Erevan, Armeni, abotanyinst@sci.am<br />
The high mountainous grass Colpodium versicolor (Stev.) Schmalh. has an unusual<br />
low basic chromosome number <strong>of</strong> two considering that the basic number <strong>of</strong><br />
chromosomes <strong>of</strong> the Poaceae family is seven. At this moment we know only four<br />
plants with high reduced chromosome number 2n=4 and two <strong>of</strong> them belong to the<br />
Poaceae family: Colpodium versicolor and Zingeria biebersteiniana (Claus) P.A.<br />
Smirn.<br />
Analyses <strong>of</strong> the relation between these unique two genera <strong>of</strong> grasses including<br />
Colpodium versicolor (2n=2x=4, 2C=2.4 pg) Zingeria biebersteiniana (2n=2x=4,<br />
2C=3.5 pg) Z. trichopoda (Boiss.) P. A. Smirn. (2n=4x=8, 2C=5.3 pg) and Zingeria<br />
kochii (Mez) Tzvelev (2n=6x=12, 2C=6.7pg) revealed a dynamic evolution <strong>of</strong> the<br />
genomes with the following results: (1) Z. trichopoda is <strong>of</strong> amphidiploid origin. Only<br />
four <strong>of</strong> the eight chromosomes <strong>of</strong> Z. trichopoda are strongly labelled after genomic in<br />
situ hybridisation with genomic DNA <strong>of</strong> Z. biebersteiniana. Therefore, Z. trichopoda<br />
evolved from a hybrid involving a species very close to the recent form <strong>of</strong> Z.<br />
biebersteiniana and a second species with a similar low number <strong>of</strong> chromosomes. (2)<br />
Z. kochii is <strong>of</strong> allohexaploid origin. Four <strong>of</strong> the twelve chromosomes <strong>of</strong> Z. kochii are<br />
strongly labelled after genomic in situ hybridisation with genomic DNA <strong>of</strong> Z.<br />
biebersteiniana, and four other chromosomes are strongly labelled with genomic<br />
DNA <strong>of</strong> C. versicolor. Therefore, Z. kochii evolved from a hybrid involving a species<br />
very close to the recent form <strong>of</strong> Z. biebersteiniana and C. versicolor.(3) The 45S<br />
rDNA loci <strong>of</strong> the Z. biebersteiniana-similar component <strong>of</strong> Z. kochii vanished after<br />
amphiploidisation. Supported by: RFBR 06-04-48399, DAAD 325, DFG 2001, DFG<br />
2005.<br />
28
O 28<br />
Chromosome evolution in selected mountainous species <strong>of</strong> Luzula<br />
(woodrush).<br />
Monika Bozek 1 , Andrew R. Leitch 2 , Yoong K. Lim 2 , Graham Moore 3 , Thomas Haizel 3<br />
and Elzbieta Kuta 1<br />
1 Department <strong>of</strong> <strong>Plant</strong> Cytology and Embryology, Institute <strong>of</strong> Botany, Jagiellonian<br />
University, 52 Grodzka Street, 31-044 Cracow, Poland, m.bozek@iphils.uj.edu.pl<br />
2 School <strong>of</strong> Biological and Chemical Sciences, Queen Mary, University <strong>of</strong> London,<br />
Mile End Road, London E1 4NS, UK<br />
3 John Innes Centre, Colney Lane, Norwich, Norfolk NR4 7UH, UK<br />
The monophyletic genus Luzula is a cosmopolitan Juncaceae taxon comprising<br />
about 115 species. It is the only known plant genus where all species have<br />
holocentric chromosomes, in which the kinetochore proteins occur along the entire<br />
chromatid. This attribute enables fused chromosomes and chromosome fragments to<br />
segregate normally in cell divisions. As a result, chromosome fragmentation<br />
(agmatoploidy) and/or fusion (symploidy) are commonly occurring structural<br />
chromosome mutations. Furthermore, polyploidy can be superimposed on these<br />
changes. Interestingly, a significant number <strong>of</strong> these events occur in species<br />
originating in alpine regions. We analyse karyotype divergence in eight closelyrelated<br />
species to better understand patterns <strong>of</strong> holocentric chromosome evolution in<br />
Luzula. C-banding and fluorescent in situ hybridisation (FISH) with selected DNA<br />
sequences (centromeric-LCS1, plant telomeric TTTAGGG, ribosomal DNA,<br />
retroelements) supported by dot-blot estimates <strong>of</strong> sequence copy numbers and<br />
nuclear DNA measurements are used to characterize genome structure.<br />
Heterochromatin banding patterns are similar between species. Likewise the<br />
centromeric repeat-LCS1, which contributes significantly to the heterochromatic<br />
fraction <strong>of</strong> the genome, is found at numerous bands across the genome. Studies on<br />
retroelement distribution, especially between symploid and related diploid species,<br />
reveal lineages with extraordinary copy number increases.<br />
In a symploid species none <strong>of</strong> our markers indicated ancient fusions (e.g. interstitial<br />
rDNA loci or multiple loci on a single chromosome) and in polyploids there is<br />
evidence for diploidisation (e.g. a reduction in rDNA locus number from expectation),<br />
both results indicate genome evolution subsequent to karyotype structural change.<br />
29
O 29<br />
From individuals to populations: the impact <strong>of</strong> flow cytometry on<br />
understanding polyploid evolution in mountain plants<br />
Jan Suda<br />
Department <strong>of</strong> Botany, Faculty <strong>of</strong> Science, Charles University in Prague, Benátská 2,<br />
CZ-128 01 Prague, Czech Republic & Institute <strong>of</strong> Botany, Academy <strong>of</strong> Sciences,<br />
Průhonice 1, CZ-252 43 Průhonice, Czech Republic; suda@natur.cuni.cz<br />
Flow cytometry (FCM) is a powerful technology that simultaneously measures and<br />
analyses multiple parameters <strong>of</strong> single particles (cells, nuclei). Since the 1980s, use<br />
<strong>of</strong> FCM in plant population and evolutionary biology, biosystematics, and ecology has<br />
expanded dramatically both in scope and frequency, addressing primarily questions<br />
<strong>of</strong> phenotypic manifestation, spatial distribution, and evolutionary dynamics <strong>of</strong><br />
genome duplication (polyploidy). Estimating differences in nuclear DNA content, FCM<br />
<strong>of</strong>fers many advantages over other methods <strong>of</strong> detecting ploidy, high speed and<br />
reliability in particular, which paves the way for large-scale surveys at the landscape,<br />
population, individual, and tissue levels. Representative samplings allowed gaining<br />
novel insights into the extent <strong>of</strong> intra- and inter-population ploidy variation, niche<br />
differentiation, and ecological preferences <strong>of</strong> particular cytotypes. The technique is<br />
ideally suited for the detection and quantification <strong>of</strong> rare evolutionary episodes. An<br />
attractive feature is the possibility to reformulate former taxonomic concepts and<br />
propose robust classifications based on detailed understanding <strong>of</strong> population<br />
structure and phenotypic differentiation <strong>of</strong> polyploid alliances under investigation.<br />
Discrimination among homoploid taxa and their hybrids, based on differences in<br />
genome size, is another power <strong>of</strong> FCM. In combination with other, notably molecular,<br />
techniques, FCM promises qualitative advances in our understanding <strong>of</strong> genome<br />
multiplication and the population biology <strong>of</strong> vascular plants. Examples from both<br />
European (e.g., Androsace, Anthoxanthum, Empetrum, Pilosella, Senecio,<br />
Vaccinium) and extra-European (e.g., Lasiocephalus, Lychnis, Swertia) mountain<br />
plants will be discussed.<br />
30
O 30<br />
Evolutionary-related changes in marginal wheat populations -<br />
speciation versus elimination<br />
Olga Raskina & Alexander Belyayev<br />
Institute <strong>of</strong> Evolution, University <strong>of</strong> Haifa, Mount Carmel, Haifa 31905, Israel;<br />
raskina@research.haifa.ac.il, belyayev@research.haifa.ac.il<br />
The Middle East is considered to be the primary center <strong>of</strong> diploid and polyploid<br />
Triticeae species variability where local populations exhibit significant genetic<br />
diversity. A comprehensive study <strong>of</strong> wild tetraploid Triticum dicoccoides and five<br />
diploid Aegilops species (sect. Sitopsis) <strong>of</strong> marginal populations revealed a wide<br />
spectrum <strong>of</strong> intra-specific variability in repetitive DNA fractions (tandem repeats and<br />
transposable elements (TE)). It was discovered that: (i) several TEs are<br />
transpositionally active; (ii) there is a significant change in TE numbers over<br />
succeeding generations; (iii) copy numbers <strong>of</strong> TEs as well as the amplitude <strong>of</strong><br />
oscillation in copy number are much higher in gametophyte than in sporophyte; (iv)<br />
temporal change in TE copy number is associated with a high level <strong>of</strong> morphological<br />
and chromosomal aberrations. Two contrasted scenarios <strong>of</strong> marginal population<br />
development can be distinguished. Both scenarios imply sufficient genome<br />
perturbations (chromosomal aberrations, TE activization, etc.). The first scenario<br />
leads to population elimination. Another scenario assumes that genetic/epigenetic<br />
alterations could allow species with plastic genomes to survive as new forms/species<br />
under intensive environmental pressure. We hypothesize that on a diploid level four<br />
Sitopsis species originated in this way, as derivatives <strong>of</strong> Ae. speltoides due to<br />
dynamics <strong>of</strong> Middle Eastern flora in the Holocene. Another way is allopolyploidy −<br />
when two or more different genomes unify in one nucleus to create a new species.<br />
Our data support that B- and G-genomes <strong>of</strong> allopolyploid wheat are similar to the two<br />
contrasting types <strong>of</strong> Ae. Speltoides<br />
31
O 31<br />
Evolutionary responses towards adaptation and speciation after<br />
allopolyploidization in Dactylorhiza (Orchidaceae)<br />
Ovidiu Paun, Mark W. Chase, Javier A. Luna, Robyn Cowan & Michael F. Fay<br />
Jodrell Laboratory, Royal Botanic Gardens Kew, Richmond TW9 3DS, U.K.;<br />
o.paun@kew.org, m.chase@kew.org, javoluna@gmail.com, r.cowan@kew.org,<br />
m.fay@kew.org,<br />
Hybridization and polyploidization are widespread in angiosperms and regularly<br />
stimulate plant evolution, promoting genetic diversity, evolutionary innovation,<br />
adaptive radiation and speciation. An important feature <strong>of</strong> allopolyploidization is its<br />
potential to occur repeatedly between the same parental taxa, leading to arrays <strong>of</strong><br />
allopolyploids that subsequently interbreed. In Dactylorhiza, ecologically divergent<br />
allotetraploids D. majalis, D. traunsteineri and D. ebudensis resulted from<br />
hybridization <strong>of</strong> diploids D. fuchsii and D. incarnata. In this system we are analysing<br />
consequences <strong>of</strong> polyploidy and hybridization on natural evolution <strong>of</strong> the genomes<br />
and adaptation to the environment. A genome-wide survey <strong>of</strong> the transcriptome at<br />
286 loci using cDNA amplified fragment length polymorphism (cDNA-AFLP),<br />
complemented by investigating epigenetic variation with methylation sensitive AFLP<br />
(MSAP), indicates extensive physical (non-epigenetic) differences in gene expression<br />
between parents and descendants, as well as between allotetraploids. Although no<br />
widespread repeatable loss <strong>of</strong> low copy DNA sequence is apparent in the hybrids,<br />
there is a significant increase <strong>of</strong> the number <strong>of</strong> transcripts expressed at a moment in<br />
time in the polyploids potentially resulting in biological complexity increase. Several<br />
novel transcripts in the polyploids are associated with environmental parameters and<br />
might represent parts <strong>of</strong> the molecular mechanisms that result in adaptation to<br />
different ecological conditions/habitats enforcing reproductive isolation. In addition to<br />
stabilizing allopolyploid genomes such novel expression patterns along with<br />
increased heterozygosity and gene redundancy might confer on hybrids an elevated<br />
evolutionary potential, with effects at scales ranging from the molecular to the<br />
ecological.<br />
32
MOLECULAR APPROACHES IN PLANT EVOLUTION<br />
O 32<br />
DNA barcoding and reconstruction <strong>of</strong> past plant communities from<br />
permafrost samples<br />
Pierre Taberlet 1 & Ludovic Gielly ,1<br />
1 Laboratoire d’Ecologie Alpine, CNRS UMR 5553, Université Joseph Fourier, BP 53,<br />
38041 Grenoble Cedex 9, France.<br />
DNA barcoding, i.e. taxon identification using a standardized DNA region, has<br />
received much attention recently, and is being further developed through an<br />
international initiative. The now well-established Consortium for the Barcode <strong>of</strong> Life<br />
(CBOL; http://barcoding.si.edu/), an international initiative supporting the<br />
development <strong>of</strong> DNA barcoding, aims to both promote global standards and<br />
coordinate research in DNA barcoding. For plants, the target is chloroplast (cp) DNA,<br />
but the situation is controversial, due to the relatively low sequence variation <strong>of</strong> this<br />
genome. With more and more DNA sequences allowing species identification<br />
accessible in databases and new sequencing technologies dramatically expanding<br />
available sequencing power, we anticipate that DNA barcoding techniques will be<br />
increasingly used by ecologists for biodiversity assessment. They will be able to<br />
determine the composition <strong>of</strong> complex source material. For example, the use <strong>of</strong> very<br />
short DNA fragments that persist in the environment will allow an assessment <strong>of</strong> local<br />
biodiversity from soil. In the talk, I will emphasize the perspectives <strong>of</strong>fered by the<br />
analysis <strong>of</strong> environmental samples. I will focus on the adjustment <strong>of</strong> the methodology<br />
to reconstruct past plant communities from permafrost samples. I will also present the<br />
first results concerning modern Arctic soil and permafrost samples. Finally, I will<br />
discuss the power and the limitations <strong>of</strong> such an approach.<br />
33
O 33<br />
Low copy rDNA types dominate expression <strong>of</strong> rDNA in Tragopogon<br />
allotetraploids<br />
Hana Šrubařová 1 , Roman Matyášek 1 , Yoong K. Lim 3 , Andrew R. Leitch 3 , Douglas E.<br />
Soltis 2 , Pamela S. Soltis 4 , Aleš Kovařík 1<br />
1 Institute <strong>of</strong> Biophysics, Academy <strong>of</strong> Sciences <strong>of</strong> the Czech Republic, Královopolská<br />
135, CS-61265 Brno, Czech Republic, Srubarova@ibp.cz<br />
2 Department <strong>of</strong> Botany, University <strong>of</strong> Florida, Gainesville, FL 32611, U.S.A<br />
3 School <strong>of</strong> Biological Sciences, Queen Mary, University <strong>of</strong> London, E1 4NS, U.K.<br />
4 Florida Museum <strong>of</strong> Natural History, University <strong>of</strong> Florida, Gainesville, FL 32611,<br />
U.S.A.<br />
Interspecific hybrids and allopolyploids <strong>of</strong>ten silence expression <strong>of</strong> ribosomal genes<br />
inherited from one parental species. This phenomenon, known as nucleolar<br />
dominance, was studied at the population level in recent (
O 34<br />
Molecular studies <strong>of</strong> Amaranthaceae based on matK DNA sequence<br />
data<br />
Oluwatoyin T. Ogundipe 1 and Mark Chase 2<br />
1 Department <strong>of</strong> Botany and Microbiology, University <strong>of</strong> Lagos, Akoka, Lagos, Nigeria;<br />
toyin60@yahoo.com<br />
2 Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3DS,<br />
Comparative sequencing <strong>of</strong> the chloroplast matK coding and non-coding regions was<br />
used to examine relationship among the species <strong>of</strong> Amaranthaceae with emphasis<br />
on the West African species and other closely related families such as<br />
Chenopodiaceae, Portulacaceae and Caryophyllaceae. Phylogenetic analysis <strong>of</strong> the<br />
matK sequences alone and in combination using maximum parsimony methods<br />
produced monophyletic lineage <strong>of</strong> Amaranthaceae-Chenopodiaceae. Our results<br />
indicated that a polyphyletic Celosieae as sister to an Amaranthus-Chemissoa<br />
lineage. Subfamily Amaranthoideae is paraphyletic to the core Gomphrenoids. This<br />
study also shows that the polyphyly <strong>of</strong> Amarantheae is apparent and so is the<br />
polyphyly <strong>of</strong> Amaranthinae.<br />
35
O 35<br />
Evolution <strong>of</strong> a RNA polymerase gene family in the polyploid<br />
Cerastium alpinum complex<br />
Anne Krag Brysting<br />
Centre for Ecological and Evolutionary Synthesis, Department <strong>of</strong> Biology, P.O.Box<br />
1066 Blindern, N-0316 Oslo, Norway; a.k.brysting@bio.uio.no<br />
The high-polyploid Cerastium alpinum complex (Caryophyllaceae) has been shaped<br />
through repeated hybridization and polyploidization events. By the use <strong>of</strong> a network<br />
algorithm and sequences <strong>of</strong> a single-copy nuclear region <strong>of</strong> the RNA polymerase II<br />
gene family RPB2, we have previously shown that it is possible to untangle genome<br />
mergings within this species complex. RPB2 nicely tracks the allopolyploid events<br />
that gave rise to several recent (late Pleistocene) octo- and dodecaploid taxa.<br />
However, only remnants <strong>of</strong> one or more earlier tetraploidization events are present as<br />
pseudogenes in some <strong>of</strong> the supposed tetraploid ancestral taxa. Here, new data from<br />
a non-coding region <strong>of</strong> the RNA polymerase IV gene family RPD2 is presented. In<br />
some eudicot angiosperm taxa (e.g. Arabidopsis, Silene and Viola) this gene has<br />
been independently duplicated. In some lineages subfunctionalization or<br />
ne<strong>of</strong>unctionalization <strong>of</strong> the two paralogues has occurred (probably specializing on the<br />
two different RNA polymerase IV types existing in angiosperms), and in other<br />
lineages one paralogue has become pseudogenised or completely lost. RPD2 is<br />
duplicated also in Cerastium; two very different paralogues were amplified for all<br />
analysed taxa, and for each <strong>of</strong> these paralogues several copies exist depending on<br />
the ploidy level <strong>of</strong> the particular taxon. In the talk, I will present the most recent data<br />
and in the light <strong>of</strong> results from other studies (Silene and Viola) discuss the fate <strong>of</strong> the<br />
different paralogues following genome merging in the allopolyploid Cerastium<br />
alpinum complex.<br />
36
O 36<br />
Comparative genomics in the Brassicaceae: Genetic mapping,<br />
chemical defense and apomixis in montane Boechera<br />
M. Eric Schranz<br />
University <strong>of</strong> Amsterdam, Institute for Biodiversity and Ecosystem Dynamics (IBED),<br />
Kruislaan 318, building I-B019, 1098 SM Amsterdam, The Netherlands<br />
m.e.schranz@uva.nl<br />
Comparative genomics <strong>of</strong> Arabidopsis relatives has great potential to improve our<br />
understanding <strong>of</strong> molecular function and evolutionary processes. In the last two years<br />
there have been major advances in our understanding <strong>of</strong> Brassicaceae relationships,<br />
genome structure and the evolution <strong>of</strong> specific traits. I will discuss the development<br />
and application <strong>of</strong> comparative genomics tools within a phylogenetic framework to<br />
study the evolution <strong>of</strong> chemical defense and apomixis in the North American genus<br />
Boechera. The partial genome sequencing and construction <strong>of</strong> a genetic linkage map<br />
<strong>of</strong> B. stricta provide the framework for comparisons and evolutionary analysis <strong>of</strong><br />
genome structure relative to Arabidopsis and other Brassicaceae. Analysis <strong>of</strong><br />
glucosinolates, important secondary compounds in plant defense, identified a major<br />
polymorphism both within and between species. Quantitative Trait Locus (QTL)<br />
analysis using our genetic mapping population identified a single locus controlling<br />
both glucosinolate pr<strong>of</strong>iles and levels <strong>of</strong> herbivory. Work is now underway to clone<br />
this locus. The genus Boechera is also an excellent system to study apomixis<br />
(asexual reproduction) because <strong>of</strong> the rare occurrence <strong>of</strong> apomixis at the diploid level<br />
and its potentially simple inheritance by transmission <strong>of</strong> a heterochromatic (Het)<br />
chromosome. Investigations on the potential role <strong>of</strong> hybridization, polyploidization<br />
and transmission <strong>of</strong> the Het chromosome on the control and evolution <strong>of</strong> apomixis in<br />
Boechera will be discussed.<br />
37
ECOLOGICAL FACTORS IN PLANT EVOLUTION<br />
O 37<br />
Population differentiaton, local adaptation and gene flow in the<br />
alpine landscape<br />
Jürg Stöcklin<br />
Botanical Institute, University <strong>of</strong> Basel, Schönbeinstrasse 6, CH-4056 Basel,<br />
Switzerland. E-mail: juerg.stoecklin@unibas.ch<br />
Steep environmental gradients and patchy habitats characterize alpine environments.<br />
Life conditions change dramatically with altitude, exposition, snow cover or<br />
succession. As a consequence, shifts in selection pressure are to be expected.<br />
Spatial isolation and limited gene flow are the rule for alpine plants, and<br />
differentiation might also result from small population size and genetic drift.<br />
Furthermore, most alpine areas include cultural landscapes; agricultural land use has<br />
considerably added to the natural diversity <strong>of</strong> alpine habitats. The characteristics <strong>of</strong><br />
alpine environments are well known but consequences for evolutionary processes<br />
are still poorly understood. Here I present case studies <strong>of</strong> alpine plant species to<br />
answer the following general questions. Does genetic diversity decrease with<br />
altitude? How is genetic diversity distributed within and among populations and by<br />
what factors is it affected? How important is population differentiation in important<br />
liefe history traits? Is selection pressure strong enough for pronounced adaptation<br />
along ecological gradients? Genetic diversity was found to be generally high, and<br />
genetic differentiation was not particularly pronounced, but increasing with<br />
geographic distance in all studied cases. Results suggest considerable genetic drift<br />
among populations <strong>of</strong> alpine plants, but it is not high enough to mask genetic imprints<br />
<strong>of</strong> glacial history. Adaptive trait differentiation was observed due to altitude and as a<br />
consequence <strong>of</strong> different land use. Selection pressure in contrasting habitats is not<br />
always strong enough for pronounced differentiaton. Factors like land use or local<br />
conditions may override altitude. To conclude: Genetic variation in growth and<br />
reproduction are common among isolated populations <strong>of</strong> alpine plants and is shaped<br />
by adaptive as well as random evolutionary processes. Plasticity in growth and<br />
reproduction help plants to survive in the alpine landscape.<br />
38
O 38<br />
How alpine landscapes and dispersal vectors shape gene-flow and<br />
population structure in Melampyrum sylvaticum<br />
Jörg Wunder 1,2 , Mingai. Li 2 , Ruggero Valentinotti 2 , Fabio Zottele 2 , Filippo Prosser 3 ,<br />
Eliana Scarponi 2 , Michele Graziola 2 , Enrico Barbaro 2, Heinz Saedler 1 , Claudio<br />
Varotto 2<br />
1 Max-Planck-Institut for <strong>Plant</strong> Breeding Research, Dep. Molecular <strong>Plant</strong> Genetics,<br />
Carl-von-Linné-Weg 10, 50829 Cologne, Germany: wunder@mpiz-koeln.mpg.de<br />
2 Istituto Agrario di San Michele all’Adige, Via Edmondo Mach 1, 38010 San Michele<br />
all'Adige, Trento, Italy,<br />
3 Museo Civico di Rovereto, Borgo S.Caterina 41, 38068 Rovereto, Italy<br />
The processes acting within and between populations at landscape scale are the<br />
basis for most evolutionary events in nature. They shape the genetic structure <strong>of</strong><br />
populations, affect local adaptations to microhabitats and the development <strong>of</strong><br />
ecotypes and subspecies. To better understand the effects <strong>of</strong> both the intrinsic<br />
biological properties <strong>of</strong> a species and highly structured alpine landscapes on these<br />
processes, we analyzed the myrmecochore and bumblebee pollinated species M.<br />
sylvaticum L.<br />
AFLP analyses revealed strong spatial genetic structure (SGS) both within and<br />
among populations and regions (Φ ST =0.65, Φ CT =0.14). SGS within populations is<br />
mainly due to the restricted seed dispersal ability <strong>of</strong> ants and high selfing rates.<br />
Furthermore there were correlations between geographic and genetic distances<br />
indicating distance dependent gene flow at various scales. The regular dispersal<br />
vectors, however, only account for gene-flow within populations. Regional SGS are<br />
due to non-standard dispersal vectors, not in line with the morphological dispersal<br />
syndrome. To improve the representation <strong>of</strong> the landscape in the correlation<br />
analyses, we further developed a GIS-model describing habitat suitability. - In the<br />
presentation we will discuss the spatial genetic population structuring <strong>of</strong> M.<br />
sylvaticum in the light <strong>of</strong> different dispersal vectors for pollen and seeds, including the<br />
role <strong>of</strong> long distance dispersal (LDD) events. We further compare different models <strong>of</strong><br />
spatial dependence <strong>of</strong> genetic variability in the region <strong>of</strong> Trentino/South Tyrol based<br />
either on straight-line distances or on least-cost paths taking habitat suitability along<br />
altitudinal gradients into account.<br />
39
O 39<br />
Soil ecology as a driver <strong>of</strong> spatial genetic structure in alpine plants<br />
Nadir Alvarez 1 , Conny Thiel-Egenter 2 , Andreas Tribsch 3 , Rolf Holderegger 2 ,<br />
Stéphanie Manel 4 , Pierre Taberlet 4 , Philippe Küpfer 1 , Sabine Brodbeck 2 , Myriam<br />
Gaudeul 5 , Ludovic Gielly 4 , Guilhem Mansion 6 , Riccardo Negrini 7 , Ovidiu Paun 8 ,<br />
Marco Pellecchia 7 , Delphine Rioux 4 , Peter Schönswetter 9 , Fanny Schüpfer 1 , Marcela<br />
Van Loo 8 , Manuela Winkler 9 , Felix Gugerli 2 , IntraBioDiv Consortium<br />
1<br />
University <strong>of</strong> Neuchâtel, 2000 Neuchâtel, Switzerland, 2 WSL, 8903 Birmensdorf,<br />
Switzerland, 3 University <strong>of</strong> Salzburg, 5020 Salzburg, Austria, 4 University Joseph<br />
Fourier, 38041 Grenoble, France, 5 National Museum <strong>of</strong> Natural History, 75005 Paris,<br />
France, 6 University <strong>of</strong> Zurich, 8008 Zurich, Switzerland, 7 Sacro Cuore Catholic<br />
University <strong>of</strong> Piacenza, 29100 Piacenza, Italy, 8 Royal Botanic Gardens, TW9 3AB<br />
Kew, United Kingdom, 9 University <strong>of</strong> Vienna, 1030 Vienna, Austria<br />
Throughout Quaternary climatic changes, distribution ranges <strong>of</strong> species shifted largely.<br />
Since the early 20 th century, biogeography debated about the relative importance <strong>of</strong><br />
historical versus ecological determinants as drivers <strong>of</strong> species distributions and<br />
biogeographic patterns. Recently, molecular analyses <strong>of</strong> species phylogeographic<br />
patterns have allowed new insight into their historical fate, but the role played by<br />
ecological factors in such processes remained largely unknown. Here, we hypothesize<br />
that ecological factors determined intraspecific spatial genetic structuring in Alpine<br />
plant species and tested this hypothesis by using 27 widespread Alpine plant species<br />
sampled extensively on a regular grid across the whole European Alps. All investigated<br />
species are well defined by their ecological requirements (e.g., moisture, temperature,<br />
soil reaction, etc.). Intraspecific phylogeographic patterns were assessed with AFLPs<br />
and model-based Bayesian clustering. We calculated the pairwise level <strong>of</strong> genetic<br />
structure similarity between species and correlated these with the ecological similarity<br />
between species. Only soil reaction influenced species genetic structures,<br />
demonstrating high congruence between species growing on similar soil type. The<br />
partial spatial discordance between Alpine glacial refugia on calcareous and on<br />
siliceous soils combined with the high stability <strong>of</strong> bedrock occurrence (influencing soil<br />
reaction) over time explains species’ phylogeographic patterns and concerted<br />
migration routes.<br />
40
O 40<br />
Habitat exploitation and diversification through inter-ecologicaltype<br />
allopolyploidization<br />
Hiroshi Kudoh<br />
Center for Ecological Research, Kyoto University, Hirano 2-509-3, Otsu 520-2113,<br />
Japan, kudoh@ecology.kyoto-u.ac.jp<br />
Polyploid formation is a common mode <strong>of</strong> speciation in plants. Especially in<br />
allopolyploids, the unity <strong>of</strong> two sets <strong>of</strong> genomes may provide a great opportunity for<br />
new lineages to explore vacant niches. We studied the role <strong>of</strong> polyploidization in the<br />
diversification process <strong>of</strong> the genus Cardamine. The genus contains more than two<br />
hundred species and is one <strong>of</strong> the most diversified genera in Brassicaceae. The<br />
genus is ecologically unique because it expanded habitats near to the water, and we<br />
found that many polyploid species inhabit in the spectra <strong>of</strong> niches along a drywaterlogged<br />
gradient. Phylogenetic analysis indicated that the adaptation to the<br />
waterlogged environments occurred once in the diploid diversification. This allowed<br />
us to distinguish two groups <strong>of</strong> diploids, i.e. ‘wetland’ and ‘dryland’ groups.<br />
Identification <strong>of</strong> parental diploids suggested that many polyploids have hybrid origins<br />
between the two types, and we named these polyploids as ‘inter-ecological-type<br />
allopolyploids (IETA)'. To test whether the IETAs have wider potential niches<br />
compared with diploid parents, we conducted a series <strong>of</strong> growth experiments in which<br />
water levels were artificially controlled. In Cardamine, IETAs are likely to be more<br />
successful than intra-niche polyploids and autopolyploids, and the pattern may<br />
explain rapid adaptation and diversification <strong>of</strong> the genus.<br />
41
EVOLUTIONARY PROCESSES IN EXTRA-EUROPEAN<br />
MOUNTAINS<br />
O 41<br />
Relationships and genetic variation in the New Zealand edelweiss<br />
Leucogenes (Asteraceae: Gnaphalieae)<br />
Ilse Breitwieser & Rob Smissen<br />
Allan Herbarium, Landcare Research, PO Box 40, Lincoln 7640, New Zealand;<br />
breitwieseri@landcareresearch.co.nz<br />
<strong>Plant</strong>s <strong>of</strong> the New Zealand endemic genus Leucogenes (Asteraceae: Gnaphalieae)<br />
are alpine perennial evergreen subshrubs that are characterised by sessile yellow<br />
capitula in a very dense corymb surrounded by a ring <strong>of</strong> modified densely-white<br />
tomentose leaves, the whole giving the appearance <strong>of</strong> a single, showy flower.<br />
Beauverd named this genus Leucogenes to mark the similar appearance <strong>of</strong> the<br />
inflorescence <strong>of</strong> the New Zealand species to that <strong>of</strong> the European edelweiss,<br />
Leontopodium alpinum, and its relatives. Thus, Leucogenes became known as the<br />
New Zealand edelweiss.<br />
These similarities led some previous authors to suggest close relationships between<br />
northern and southern hemisphere edelweiss, but we found that the southern<br />
hemisphere edelweiss is part <strong>of</strong> a generic complex within the Gnaphalieae which also<br />
includes the New Zealand endemic genera Rachelia and Raoulia, the genus<br />
Anaphalioides known from New Zealand and Papua New Guinea, and the New<br />
Zealand species currently assigned to Ewartia and Helichrysum. Our observations<br />
suggest it is closest to Raoulia subg. Psychrophyton, although the two are<br />
morphologically very different. Leucogenes has the capacity to hybridise quite freely<br />
with these pulvinate species <strong>of</strong> Raoulia.<br />
We examined AFLP pr<strong>of</strong>iles, nuclear ITS sequences, and chloroplast psbA-trnH<br />
intergenic spacer sequences for representative samples <strong>of</strong> the four species <strong>of</strong><br />
Leucogenes to get more insight into the evolution and geographic variation <strong>of</strong> the<br />
species. We found that the tetraploid L. neglecta was derived from the diploid L.<br />
leontopodium by autoploidy, but that the octoploid L. tarahaoa arose earlier than and<br />
independently <strong>of</strong> L. neglecta. Some populations <strong>of</strong> L. leontopodium and L.<br />
grandiceps have chloroplast sequences more similar to those <strong>of</strong> other species <strong>of</strong> the<br />
New Zealand Gnaphalieae than to the majority <strong>of</strong> Leucogenes samples. ITS<br />
sequence variation is also complex, with sequences sampled from Leucogenes not<br />
forming a monophyletic group and siginificant intraspecific variation found within L.<br />
grandiceps.<br />
42
O 42<br />
The Andean uplift and its influence on Neotropical biodiversity<br />
Alexandre Antonelli 1 , Johan A.A. Nylander 2 , R. Toby Pennington 3 , Isabel Sanmartín 4<br />
1 Department <strong>of</strong> <strong>Plant</strong> and Environmental Sciences, Göteborg University, Box 461,<br />
405 30, Sweden; alexandre.antonelli@dpes.gu.se<br />
2 Department <strong>of</strong> Systematic Botany, Stockholm University, 106591, Stockholm,<br />
Sweden; johan.nylander@bergianska.se<br />
3 Royal Botanic Garden Edinburgh, 20a Inverleith Row, Edinburgh EH3 5LR, UK;<br />
t.pennington@rbge.org.uk<br />
4 Department <strong>of</strong> Biodiversity and Conservation, Real Jardín Botánico, CSIC; Plaza<br />
Murillo 2, 28014, Madrid, Spain; isanmartin@rjb.csic.es<br />
Extending over 5000 km along the western coast <strong>of</strong> South America, the Andean<br />
Cordillera constitutes the largest mountain chain in direct connection with a tropical<br />
rain forest. Its formation has proceeded from south to north and from west to east,<br />
with most uplift phases <strong>of</strong> the tropical Andes taking place in the last 20 Ma. The<br />
Andean uplift may have promoted speciation in several ways: i) by creating new<br />
montane and pre-montane habitats in the Neotropics, favouring morphological<br />
adaptation <strong>of</strong> lowland taxa; ii) by producing geographic vicariance, and consequently<br />
genetic isolation, between populations on both sides <strong>of</strong> the emerging mountains; iii)<br />
by favouring allopatric speciation among montane taxa, separated by deep valleys<br />
and impassable ridges and peaks; and iv) by changing the hydrology and climate <strong>of</strong><br />
the entire South American continent, thus creating new evolutionary pressures on<br />
montane and lowland taxa.<br />
In order to quantify the relative importance <strong>of</strong> each <strong>of</strong> these potential mechanisms <strong>of</strong><br />
speciation, and to discern cladogenesis caused by competing hypotheses (e.g.,<br />
Pleistocene climatic fluctuations), we perform a meta-analysis <strong>of</strong> all dated molecular<br />
phylogenies published for Andean-centred taxa, plants and animals alike. Here we<br />
will present preliminary results and their significance in understanding the origins and<br />
evolution <strong>of</strong> the world’s most biodiverse region.<br />
43
O 43<br />
Polyploid evolution in rock outcrop mountains <strong>of</strong> South-Eastern<br />
Brazil<br />
Itayguara Ribeiro da Costa & Eliana Regina Forni-Martins<br />
Department <strong>of</strong> Botany, Institute <strong>of</strong> Biology, University <strong>of</strong> Campinas - UNICAMP,<br />
Cidade Universitária Zeferino Vaz, s/n, Caixa Postal 6109, CEP 13083-970,<br />
Campinas – SP, Brazil; itayguara@gmail.com, elianafm@unicamp.br.<br />
The rock outcrop complexes in South-Eastern Brazil are mainly part <strong>of</strong> the Espinhaço<br />
(campos rupestres) and Mantiqueira Range (campos de altitude), belong to Brazilian<br />
Cerrado and Atlantic Tropical Rain Forest biomes. The high elevation formations, the<br />
relicts, are characterized by poor soils and daily extreme temperatures, occurring<br />
above 900 and 1500 m <strong>of</strong> altitude, respectively, and possess a peculiar flora with<br />
high levels <strong>of</strong> endemism. Myrtaceae have widespread distribution at all Brazilian<br />
vegetation formations and present a high taxonomic complexity with hybrid species.<br />
The chromosome number for this family showed high frequency <strong>of</strong> 2n = 22 (x = 11),<br />
with the occurrence <strong>of</strong> polyploidy in several species, including the polyploid<br />
cytotypes. We carried out chromosome counts for ca. 80 species <strong>of</strong> Brazilian<br />
Myrtaceae in several genera, aiming to determine if occurrence <strong>of</strong> polyploidy would<br />
be associated with the distribution <strong>of</strong> some species in these environments. We found<br />
eight pairs <strong>of</strong> cytotypes and four different ploidy levels (2x, 3x, 4x and 6x) distributed<br />
in three genera. The greatest ploidy levels (3x and 4x) were found in some species <strong>of</strong><br />
Eugenia and Myrcia occurring in campos rupestres against the diploid relatives in the<br />
Cerrado vegetation. Similar situation to Psidium, where 6x populations occurs at<br />
highest altitude <strong>of</strong> Mantiqueira Range while 4x is distributed in other Atlantic Tropical<br />
Rain Forest localities with lower altitudes, next to the sea level. Higher ploidy levels<br />
were also observed by others authors in species <strong>of</strong> other families, as Bromeliaceae,<br />
Velloziaceae, Orchidaceae and Xyridaceae, occurring in these rock outcrop<br />
mountains. In the future, studies will be conduced to explain the origin <strong>of</strong> polyploid<br />
cytotypes in these differential environments.<br />
44
O 44<br />
Glucosinolate diversity in New Zealand alpine Pachycladon<br />
Claudia Voelckel 1 , Peter Heenan 2 , Michael Reichelt 3 & Peter J. Lockhart 1<br />
1 AWC for Molecular Ecology and Evolution, Massey University, Palmerston North,<br />
New Zealand; c.voelckel@massey.ac.nz, p.j.lockhart@massey.ac.nz<br />
2 Landcare Research, Lincoln, New Zealand; heenanp@landcareresearch.co.nz<br />
3 Max-Planck-Institute for Chemical Ecology, Hans-Knoell Strasse 8, 07745 Jena,<br />
Germany; reichelt@ice.mpg.de<br />
Using studies <strong>of</strong> differential expression we have begun investigating the potential<br />
importance <strong>of</strong> biotic and abiotic drivers in the recent diversification <strong>of</strong> New Zealand<br />
alpine Pachycladon. Following initial observations on differential expression <strong>of</strong><br />
glucosinolate biosynthesis genes in two sister species (P. enysii and P. fastigiata),<br />
we measured intra- and interspecific diversity <strong>of</strong> glucosinolates (GS) in natural<br />
populations <strong>of</strong> these species. We have identified three chemotypes in P. enysii and<br />
two chemotypes in P. fastigiata. In a further experiment, we also compared GS<br />
pr<strong>of</strong>iles in roots and leaves <strong>of</strong> five Pachycladon species (P. cheesemanii, P. exilis, P.<br />
novae-zealandiae, P. fastigiata, and P. enysii) representing the three main lineages<br />
<strong>of</strong> the species radiation. Interestingly, the similarities in both root and shoot patterns<br />
do not reflect the expected phylogenetic relationship <strong>of</strong> the five species. Moreover,<br />
differences in GS types suggest the segregation <strong>of</strong> various GS biosynthetic loci<br />
across the Pachycladon radiation. For example, in the shoots, between-species<br />
differences in chain length <strong>of</strong> methionine-derived GS, methylsulfinylalkyl and alkenyl<br />
GS and hydroxyalkenyl GS suggest segregation at the GS-Elong, GS-AOP and the<br />
GS-OH locus, respectively. In addition, between-species differences in indolyl GS in<br />
the roots suggest differential activity <strong>of</strong> tryptophane-processing GS biosynthesis<br />
genes across the Pachycladon radiation. Root patterns mostly resemble shoot<br />
patterns except for a notable increase in the methylthioalkyl precursor <strong>of</strong> the<br />
dominant leaf compounds, an observation previously made also in the seeds <strong>of</strong> P.<br />
enysii. This suggests a higher activity <strong>of</strong> the GS-OX locus in leaves vs. roots<br />
irrespective <strong>of</strong> species. In summary, our comparative approach implicates several GS<br />
loci as having undergone differential evolution during the radiation <strong>of</strong> Pachycladon. It<br />
remains to be investigated whether this evolution has been driven by stochastic<br />
processes (e.g. genetic drift) or natural selection (exerted by below and above<br />
ground herbivores and pathogens).<br />
45
O 45<br />
Evolution <strong>of</strong> terrestrial life forms in the genus Peperomia<br />
(Piperaceae): a result <strong>of</strong> orogeny <strong>of</strong> the Andes and the Sierra Madre,<br />
or radiation out <strong>of</strong> ice age refugia?<br />
Marie-Stéphanie Samain 1 , Lars Symmank 2 , Guido Mathieu 1 , Christoph Neinhuis 2 ,<br />
Paul Goetghebeur 1 , Stefan Wanke 2<br />
1 Ghent University, Department <strong>of</strong> Biology, Research Group Spermatophytes, B-9000<br />
Gent, Belgium, MarieStephanie.Samain@UGent.be<br />
2 Technische Universität Dresden, Institut für Botanik, <strong>Plant</strong> Phylogenetics and<br />
Phylogenomics Group, D-01062 Dresden, Germany<br />
Peperomia (about 1600 species) is one <strong>of</strong> the largest angiosperm genera and occurs<br />
in tropical and subtropical regions worldwide. However, the highest life form diversity<br />
is encountered in the subtropical (mountainous) areas <strong>of</strong> Mexico, Central and South<br />
America. The vast majority <strong>of</strong> the species diversity has radiated with the exploration<br />
<strong>of</strong> the epiphytic life form, but some interesting evolutionary patterns appear in the<br />
diversity <strong>of</strong> terrestrial life forms.<br />
Phylogenetic tree reconstruction shows at least two independent lineages <strong>of</strong><br />
terrestrial species with tubers within the genus. Most <strong>of</strong> these species belong to the<br />
subgenus Tildenia, sister to all other Peperomia clades, whereas some others occur<br />
scattered in the remaining clades. Leaves and inflorescences <strong>of</strong> subgenus Tildenia<br />
originate directly from the perennial tuber, in contrast with species <strong>of</strong> the crown group<br />
where annual stems with leaves and inflorescences originate from the tuber.<br />
Nearly all tuberous species are encountered in seasonally arid habitats in two<br />
biodiversity hot spots (Peru-Bolivia and Mexico-Guatemala) with few species<br />
reported from the countries in between. Species <strong>of</strong> the subgenus Tildenia from both<br />
hot spots are currently recovered as a monophyletic clade.<br />
Independent driving forces behind evolution <strong>of</strong> the terrestrial life forms in Peperomia<br />
must have acted at different times. Two major processes are considered: 1) orogeny<br />
resulting in island-like opportunities for diversification and 2) radiation out <strong>of</strong> ice age<br />
refugia.<br />
46
ROLE OF APOMIXIS IN PLANT EVOLUTION<br />
O 46<br />
Agamic complex <strong>of</strong> Pilosella: comparison <strong>of</strong> its structure in two<br />
mountain ranges in Central Europe<br />
František Krahulec 1 , Anna Krahulcová 1 , Judith Fehrer 1 , Siegfried Bräutigam 2<br />
1 Institute <strong>of</strong> Botany, Academy <strong>of</strong> Sciences <strong>of</strong> the Czech Republic, CZ-252 43<br />
Průhonice, Czech Republic; krahulec@ibot.cas.cz<br />
2 Staatliches Museum für Naturkunde, Postfach 300154, D-02806 Görlitz, Germany<br />
The genus Pilosella is formed by basic species, hybridogenous species and recent<br />
hybrids. We performed a detailed study <strong>of</strong> the entire species complexes in the<br />
Krkonoše and the Šumava Mts., two mountain ranges situated on the periphery <strong>of</strong><br />
the Czech basin, but sufficiently isolated spatially. We studied chromosome numbers,<br />
breeding systems, chloroplast haplotypes, and clonal structure. The set <strong>of</strong> the basic<br />
species in both areas is almost identical, but the set <strong>of</strong> hybridogenous species and<br />
recent hybrids resulting from hybridizations is different. Evidently, some rare events<br />
in the past triggered the further evolution. E.g. in the Krkonoše Mts it was the rise <strong>of</strong><br />
P. iserana which started the evolution <strong>of</strong> a set <strong>of</strong> forms connecting P. floribunda and<br />
P. <strong>of</strong>ficinarum. In the Šumava Mts, it was the origin <strong>of</strong> P. scandinavica, which<br />
connects P. glomerata and P. <strong>of</strong>ficinarum. The distribution <strong>of</strong> cpDNA haplotypes in<br />
both ranges also differs: in the Krkonoše Mts each basic species has only one<br />
haplotype, but in the Šumava Mts several basic species have more than one. The<br />
area <strong>of</strong> the Krkonoše Mts is characterized by a larger proportion <strong>of</strong> stabilized<br />
hybridogenous species and a lower amount <strong>of</strong> recent hybrids compared to the<br />
Šumava Mts. We have found that some types <strong>of</strong> the same origin and morphology<br />
differ in the proportions <strong>of</strong> individual classes within their progeny: types, which<br />
behave as stabilized hybridiogenous species, have a lower degree <strong>of</strong> residual<br />
sexuality than recent hybrids. Both groups have the same classes within their<br />
progeny (2n+0, n+0, n+n hybrids, 2n+n hybrids), but their proportions differ:<br />
stabilized apomicts produce about 90% <strong>of</strong> apomictic (2n+0) progeny, but the recent<br />
hybrids have low proportion <strong>of</strong> apomictic progeny but reaching up to 80% <strong>of</strong><br />
polyhaploid (n+0) or hybrid (n+n) progeny.<br />
47
O 47<br />
Geographic parthenogenesis and phylogeography in Hieracium<br />
alpinum L. (Asteraceae)<br />
Patrik Mráz 1,2 , Philippe Choler 1 , Jindřich Chrtek 3 , Delphine Rioux 1 & Pierre Taberlet 1<br />
1 Université Joseph Fourier, Laboratoire d'Ecologie Alpine, UMR UJF-CNRS 5553,<br />
PO Box 53, F-38041 Grenoble Cedex 9, France; patrik.mraz@unifr.ch<br />
2 University <strong>of</strong> Fribourg, Unit <strong>of</strong> Ecology and Evolution, CH-1700 Fribourg, Switzerland<br />
3 Institute <strong>of</strong> Botany, Academy <strong>of</strong> Sciences <strong>of</strong> the Czech Republic, CZ-25243<br />
Průhonice, Czech Republic<br />
Hieracium alpinum s.str. is an arcto-alpine species spreading from the far North<br />
(Greenland, Iceland, Scotland, Scandinavia, Northern Russia) to the southerlysituated<br />
European mountain system (Alps, Carpathians, Sudetes, Vosges, Vranica<br />
planina). While sexually reproducing diploids occur solely in the Eastern and<br />
Southern Carpathians, apomictic triploids cover the rest <strong>of</strong> the range. We used AFLP<br />
markers and ITS sequencing for inferring <strong>of</strong> genetic structure and origin <strong>of</strong><br />
geographical parthenogenesis in this species. AFLP data suggest polytopic origin <strong>of</strong><br />
triploid apomicts with almost no genetic relatedness to the recent diploids. Although<br />
triploid populations show usually very low genetic variation, several populations from<br />
Central Europe are very variable because they include genetically very distant<br />
clones. Past migration among different triploid populations and independent<br />
recolonization might explain the extant <strong>of</strong> genetic variation <strong>of</strong> some triploid<br />
populations in Central Europe. Northern populations consist virtually from only one or<br />
several closely related AFLP genotypes, suggesting very strong genetic bottleneck<br />
during postglacial recolonization <strong>of</strong> northern Europe. Genetic data, non-overlapping<br />
range <strong>of</strong> diploids and triploids, and occurrence <strong>of</strong> many closely-related microspecies<br />
within triploid range indicate that triploid plants <strong>of</strong> H. alpinum are likely not<br />
descendants <strong>of</strong> recent diploid populations, but rather they are remnants <strong>of</strong> extinct<br />
diploid lineages.<br />
48
O 48<br />
Facultative apomixis in the alpine Ranunculus kuepferi<br />
(Ranunculaceae) enhances colonization <strong>of</strong> previously glaciated<br />
areas<br />
Anne-Caroline Cosendai & Elvira Hörandl<br />
Department <strong>of</strong> Evolutionary and Systematic Botany, Faculty Center Botany,<br />
University <strong>of</strong> Vienna, Rennweg 14, A-1030 Vienna, Austria, annecaroline.cosendai@univie.ac.at<br />
elvira.hoerandl@univie.ac.at<br />
Ranunculus kuepferi is distributed along the Alps, in Corsica and in the north <strong>of</strong> the<br />
Apennines. Of the three ploidy levels known (2n = 2x, 3x and 4x), the diploids occur<br />
only in the Alps Maritimes on the western border and are sexual, whereas the<br />
tetraploid apomicts (flowers, pollen and fruit irregular) are more widespread and<br />
occur also in previously glaciated areas. This general phenomenon, known as<br />
geographical parthenogenesis, sensu Hörandl (2006), is being studied on population<br />
samples out <strong>of</strong> the range <strong>of</strong> the species using molecular markers and flow cytometry.<br />
In the mixed area, the putative hybrid origin <strong>of</strong> triploids and amount <strong>of</strong> introgression <strong>of</strong><br />
apomixis into sexuals will be analyzed. Flow cytometry revealed that triploids and<br />
pentaploids occur in the hybrid zone but some triploids and hexaploids are present in<br />
the area <strong>of</strong> tetraploid apomicts, suggesting facultative sexuality. Pseudogamous<br />
mode <strong>of</strong> reproduction <strong>of</strong> the tetraploids could be ascertained using flow cytometric<br />
seed screen (Hörandl et al. in press). Preliminary results <strong>of</strong> AFLPs show as much<br />
genetic variation within the tetraploid populations compared to the diploids, but each<br />
population has its own gene pool, suggesting founder events. Apomicts have<br />
superior colonizing abilities and grow in a broader range <strong>of</strong> altitude than the sexuals.<br />
A Mantel test computed between F ST genetic distance and the geographical distance<br />
shows a weak correlation and suggests a spread <strong>of</strong> the tetraploids in the Alps from<br />
the Alps Maritimes. Analysis <strong>of</strong> private bands suggests autopolyploid origin <strong>of</strong><br />
tetraploids and hybridization between diploids and tetraploids.<br />
References<br />
Hörandl, E. 2006. New Phytologist 171: 525 – 38.<br />
Hörandl, E., Cosendai, A.-C. & Temsch, E. (in press) <strong>Plant</strong> Ecology and Diversity.<br />
49
O 49<br />
Apomixis in Taraxacum: European and Himalayan taxa from the<br />
cytogenetic viewpoint<br />
Radim J. Vašut 1,2 , Kitty Vijverberg 3 , J. Hans de Jong 2 & Peter J. van Dijk 3<br />
1 Department <strong>of</strong> Botany, Faculty <strong>of</strong> Science, Palacký University, Šlechtitelů 11, CZ-<br />
78371 Olomouc, Czechia; 2 Department <strong>of</strong> <strong>Plant</strong> Sciences, Laboratory <strong>of</strong> Genetics,<br />
Wageningen University, Arboretumlaan 4, NL-6703 BD Wageningen, the<br />
Netherlands; 3 Keygene N.V., P.O. Box 216, 6700 AE Wageningen, the Netherlands.<br />
The genus Taraxacum (dandelion; Asteraceae) combines three modes <strong>of</strong><br />
reproduction: two sexual ones (allogamy, autogamy) and apomixis. Autogamy is<br />
known only in few ancestral taxa, whereas apomixis is widely distributed across all<br />
continents and it covers most <strong>of</strong> phylogenetic groups <strong>of</strong> the genus. The dandelion’s<br />
type <strong>of</strong> apomixis is diplosporous apomixis and it is confined to polyploids (mainly<br />
triploids and tetraploids). One <strong>of</strong> three genes involved in its regulation is Diplospory<br />
(DIP; first division restitution meiosis). We physically positioned DIP region to middle<br />
<strong>of</strong> distal arm <strong>of</strong> one <strong>of</strong> the NOR chromosome in apomictic common dandelion (T.<br />
sect. Ruderalia). In this study, we therefore aimed at answering the question: a) what<br />
is the position <strong>of</strong> DIP region in other apomictic Taraxaca from different geographical<br />
regions, b) not related phylogenetic groups and c) <strong>of</strong> different genome-size. In<br />
addition, we studied NOR chromosomes in autogamic taxa. We address the<br />
question, whether this can explain origin <strong>of</strong> apomixis. We used Fluorescence in situ<br />
hybridisation (FISH) with BAC probes containing DIP-linked SCAR markers. In<br />
autogamic species, increased number <strong>of</strong> NOR chromosomes was observed. In<br />
apomictic taxa, the same position <strong>of</strong> DIP region in all our studied sections was<br />
confirmed. We detected either unique strong signal or signal significantly larger then<br />
remaining signals located in the middle <strong>of</strong> distal arm <strong>of</strong> one <strong>of</strong> the NOR<br />
chromosomes. This indicates that DIP region has conserved position in the genus<br />
Taraxacum and apparently has longer evolutionary history then apomictic taxa<br />
themselves.<br />
50
P 01<br />
Mediterranean vegetation and Lebanon Cedar (Cedrus libani A.<br />
Rich.) forests <strong>of</strong> Turkey<br />
Necmi Aksoy¹ & Ali Kaya²<br />
¹Duzce University, Faculty <strong>of</strong> Forestry Department <strong>of</strong> Forest Botany TR-81620<br />
Beçiyörükler, Duzce-Turkey; necmiaksoy@duzce.edu.tr<br />
²University <strong>of</strong> Istanbul, Faculty <strong>of</strong> Forestry Department <strong>of</strong> Forest Botany TR-34470<br />
Bahçeköy, Istanbul-Turkey; alikaya84@yahoo.com<br />
Turkey occupies a transitional region extending between middle and tropical belts,<br />
and continental part <strong>of</strong> Asia and the eastern part <strong>of</strong> the Mediterranean Region. This<br />
geographical position gives to various floristic regions and forest types.<br />
Mediterranean vegetation encompasses the costal belt <strong>of</strong> the Marmara Sea, western<br />
part <strong>of</strong> Anatolian and the south - western Mediterranean region <strong>of</strong> Turkey. It can be<br />
divided into two main floristic formations to ecological properties <strong>of</strong> this region.<br />
Typical Mediterranean vegetation appears on lower belt <strong>of</strong> the Mediterranean Region<br />
characterized by Maquis vegetation with Turkish Red Pine (Pinus brutia Ten.) and<br />
upper part <strong>of</strong> this region contains Lebanon Cedar (Cedrus libani A. Rich.) with Black<br />
Pine (Pinus nigra Arn.) and Taurus Fir (Abies cilicica (Ant. et Klotsch.) Carr.). Maquis<br />
vegetation distributes different form the ecological conditions and the floristic<br />
composition. As it has richens biological diversity. Lebanon Cedar is being to climax<br />
tree <strong>of</strong> middle Mediterranean Mountain belt being at an elevation <strong>of</strong> 800 m and<br />
reach’s up to 2000 m on the southern slopes <strong>of</strong> the Taurus Mountains. Maquis<br />
vegetation has destroyed to using the farming, grazing and tourism activity in<br />
Mediterranean Region. Also forest <strong>of</strong> C. libani is effected by wrong forestry<br />
management and grazing. Due to, diversity <strong>of</strong> flora and fauna increase the area <strong>of</strong><br />
transition in between Maquis and Lebanon Cedar Forests. For the save the<br />
biodiversity, it must be created new forest management policy and describe to<br />
biogenetic reserve area in Maquis and Cedar Forests at Mediterranean Region.<br />
51
P 02<br />
Genetic variation, population size, and reproductive success in an<br />
endemic species in the Iberian Peninsula (Erodium foetidum,<br />
Geraniaceae)<br />
Marisa Alarcón, Pablo Vargas & Juan Aldasoro<br />
Real Jardín Botánico de Madrid, CSIC, Madrid, Spain<br />
Erodium foetidum is a xenogamous species, <strong>of</strong> which three subspecies have been<br />
described. It forms part <strong>of</strong> a monophyletic group (sect. Petraea), which is distributed in<br />
Iberian mountains. We investigated the population size, reproductive success and<br />
genetic variation <strong>of</strong> 12 populations using AFLP fingerprints. Despite their variable<br />
population size, the genetic variation within populations was high (mean Hj = 0.193,<br />
range = 0.16-0.22; PLP= 54.45, range = 47-62).<br />
In a PCO analysis, the populations were grouped together according to distributed<br />
ranges in tree groups: central-eastern and southern-eastern mountains, and northerneastern<br />
coastal hills. FST values (0.19-0.29) between geographical areas were<br />
correlated significantly (p = 0.703, p = 0.000) with the geographical distance between<br />
them, giving evidence for certain geographical isolation. The historical gene flow<br />
estimated was higher for populations situated at distances
P 03<br />
Comparative study effects <strong>of</strong> PH and water salinity on Papaver<br />
rhoeas medicinal plant germination<br />
S. H. Ashraf, A. Dashtban, M. Darbaninan,<br />
Faculty <strong>of</strong> Agriculture, Cheshme Ali street, Damghan Azad University, Damghan,<br />
Iran; shahram_ashraf@yahoo.com<br />
In order to study the effects <strong>of</strong> pH and salinity <strong>of</strong> irrigation water on germination <strong>of</strong><br />
Papaver rhoeas was conducted factorially arranged in a randomized complete design<br />
in Azad University <strong>of</strong> Damghan <strong>of</strong> Iran. The water salinity factor include 3 level (EC =<br />
3 , 6, 9 dS m -1 ) and ph factor 3 level (6.5, 7.5, 8.5) were made in petridishes in an<br />
ancubator at 20 ± 0.5°C and relative humidity was 70% for experiments.This<br />
experiment was include 9 treatment, in which was for study rate and germination<br />
percent on Papaver plant seed.The Results <strong>of</strong> variance analysis indicated that the<br />
effects <strong>of</strong> ph and salinity factors and their interaction effects on germination percent<br />
and rate, have significant with 1 percent level (except effects <strong>of</strong> interaction salinity<br />
and ph on germination percent). The result <strong>of</strong> variance analysis indicated that with<br />
increase salinity in total treatments, germination percent and rate decreased . The<br />
maximum germination percent was in the treatment with salinity 3 ds/m (73.8889)<br />
and ph 6.5 (51.5556) and minimum <strong>of</strong> germination percent was in the treatment with<br />
salinity 9 ds/m (11.5556) and ph 8.5 (47.3333). The analysis indicated that the<br />
highest germination rate was in the treatment with salinity 3 ds/m (0.039444) and ph<br />
6.5 (0.058222).<br />
53
P 04<br />
Environmental conditions influence distribution <strong>of</strong> two willow<br />
(Salix) species and their hybrid at relict site in Hrubý Jeseník Mts.<br />
(Czechia)<br />
Blanka Brandová & Radim J. Vašut<br />
Department <strong>of</strong> Botany, Faculty <strong>of</strong> Science, Palacký University, Šlechtitelů 11, CZ–<br />
783 71 Olomouc, Czechia; radim.vasut@upol.cz<br />
The genus Salix (willow) is represented by four relict subalpine species in Czechia.<br />
All ones have limited distribution and they are threatened there. One <strong>of</strong> the potential<br />
threats is intensive hybridisation and possible gene-flow. Therefore, we addressed<br />
the question to what extent are relict subalpine willow taxa threatened by<br />
hybridisation with common mountainous species. In the first part <strong>of</strong> the project, we<br />
studied morphological and ecological overlap between Salix hastata, S. silesiaca and<br />
their hybrid S. ×chlorophana. Two study plots were established in the Velká Kotlina<br />
fold (Hrubý Jeseník Mts, Czechia), where is the most stabile population <strong>of</strong> S. hastata<br />
in CZ as well as is known frequent occurrence <strong>of</strong> the hybrid there. We recorded the<br />
taxon, the size <strong>of</strong> plant, morphological key characteristics, biotope and main physical<br />
conditions on both plots. The data revealed expected morphological overlap between<br />
studied three taxa. Additionally, we found that the hybrid is the most frequent taxon at<br />
the locality (56.18 % out <strong>of</strong> 372 plants), whereas the most rare one is S. silesiaca<br />
(14.52 %). However, these taxa are ecologically and spatially well separated: S.<br />
hastata significantly prefers subalpine springs and its ecotons, S. silesiaca grows<br />
mostly in subalpine Vaccinium vegetation and finally the prevailing biotope for the<br />
hybrid is the wind-swept alpine grasslands. Although is the hybrid the most frequent<br />
taxon at locality, environmental preferences <strong>of</strong> each taxon cause spatial separation <strong>of</strong><br />
the endangered species S. hastata from the hybrid and therefore is not directly<br />
threatened by the hybridisation with S. silesiaca. This project recently continues by<br />
the analysis <strong>of</strong> genetic structure <strong>of</strong> the population, frequency <strong>of</strong> hybridisation events<br />
and the nature <strong>of</strong> the gene-flow among taxa using appropriate molecular markers.<br />
54
P 05<br />
A biosystematic study <strong>of</strong> biodiversity in Viola comollia Massara.<br />
Maura Brusoni, Roberta Negri, Linda Conti<br />
Department <strong>of</strong> Territorial Ecology, University <strong>of</strong> Pavia, Via Sant’Epifanio 14, 27100<br />
Pavia, Italy; brusoni@et.unipv.it<br />
We investigated differentiation among and within populations <strong>of</strong> Viola comollia<br />
Massara at the molecular level. V. comollia is a diploid (2n = 22) species, endemic for<br />
Orobic Alps (Italy, Lombardy), occurring on rock debris over 1700 metres above sea<br />
level. It is characterized by a very restricted but fragmented areal so that levels <strong>of</strong><br />
gene flow among geographically separated populations may be low. This allows<br />
interpopulational differentiation that may be related to geographic distance among<br />
populations. We sampled two populations <strong>of</strong> V. comollia located in two sites as far as<br />
possible from each other in Lombardy (Italy), Mount Legnone (Lecco) and Scais<br />
Valley (Sondrio). <strong>Plant</strong> material was collected in situ and to minimize the sampling<br />
impact on this rare species we only sampled a few young leaves per plant.<br />
Considering one cushion as one individual, from each population five individuals<br />
were sampled. Intrapopulation and interpopulation genetic diversity was investigated<br />
using random amplified polymorphic DNA (RAPD) markers. A total <strong>of</strong> 56 reproducible<br />
polymorphic bands were generated using 7 different primers. The presence–absence<br />
matrix <strong>of</strong> RAPD bands was examined by hierarchical clustering and principal<br />
component analysis (PCA) using the SYN-TAX 2000 program. Results demonstrate<br />
that the two populations are genetically clearly separated by a genetic distance value<br />
<strong>of</strong> 0.45 suggesting low gene flow between populations in accordance with the<br />
geographic isolation. All plants sampled in the two sites showed different RAPD<br />
phenotypes. The genetic distances observed within population from Legnone (0.38)<br />
and within the Scais Valley population (0.48) reflect the high level <strong>of</strong> intrapopulation<br />
genetic differentiation. In our investigation we observed genetic polymorphism both<br />
between populations and within populations <strong>of</strong> V. comollia. Populations from every<br />
location should therefore be protected to preserve the genetic variability.<br />
55
P 06<br />
Genome size variation and evolution in Hieracium s.str.<br />
(Asteraceae)<br />
Jindřich Chrtek 1,2 , Jaroslav Zahradníček 2 , Judith Fehrer 1 & Karol Krak 1<br />
1 Institute <strong>of</strong> Botany, Academy <strong>of</strong> Sciences <strong>of</strong> the Czech Republic, Zámek 1, CZ-252<br />
43 Průhonice, Czech Republic; chrtek@ibot.cas.cz, fehrer@ibot.cas.cz,<br />
krak@ibot.cas.cz<br />
2 Department <strong>of</strong> Botany, Charles University, Benátská 2, CZ-128 01, Praha 2, Czech<br />
Republic; j.zahradnicek@gmail.com<br />
Hieracium subgen. Hieracium is an intricate species-rich group with numerous<br />
mountain taxa composed <strong>of</strong> relatively few sexual diploids and a vast number <strong>of</strong><br />
apomictic polyploids. The aim <strong>of</strong> the present study was to analyse nuclear genome<br />
size in a phylogenetic framework and to assess relations between genome size and<br />
ploidy level, breeding system and selected ecogeographic features. Genome sizes <strong>of</strong><br />
42 so-called ‘basic’ Hieracium species were determined using propidium iodide flow<br />
cytometry. The mean 2C values differed up to 2,37-fold among different species<br />
(from 7.03 pg in diploid to 16.67 pg in tetraploid accessions). The 1Cx values varied<br />
1,22-fold (between 3.51 pg and 4.34 pg). Variation in 1Cx values between<br />
conspecific (species in a broad sense) accessions ranged from 0.24% to 7.2%. Mean<br />
1Cx values <strong>of</strong> the three cytotypes (2x, 3x, 4x) differed significantly indicating<br />
downsizing <strong>of</strong> genomes in polyploids. The pattern <strong>of</strong> genome size variation correlated<br />
well with two major phylogenetic clades based on sequences <strong>of</strong> the external<br />
transcribed spacer <strong>of</strong> nuclear ribosomal DNA (ETS), which were composed <strong>of</strong><br />
species with either south-western or south-eastern European origin. The monoploid<br />
(1Cx) genome size in the ‘western’ species was significantly lower than in the<br />
‘eastern’ ones. Correlation <strong>of</strong> genome size with geographic latitude, altitude and<br />
selected ecological characters (light and temperature) was not significant while a<br />
longitudinal component was apparent, albeit weaker than the phylogenetic<br />
correlation.<br />
56
P 07<br />
Breakdown <strong>of</strong> heterostyly and the evolution <strong>of</strong> selfing in alpine<br />
Primula sect. Aleuritia<br />
Jurriaan M. de Vos 1 & Elena Conti 1,2<br />
1 Institute <strong>of</strong> Systematic Botany, University <strong>of</strong> Zürich, Zollikerstrasse 107, 8008 Zürich,<br />
Switzerland; Jurriaan.deVos@systbot.uzh.ch; 2 ContiElena@access.unizh.ch<br />
One <strong>of</strong> the core problems in evolutionary biology is to understand how and why the<br />
wonderful diversity in angiosperm sexual systems has evolved. Heterostyly is a<br />
breeding system known from 28 angiosperm families in which individuals <strong>of</strong> a species<br />
come in two (distyly) or three (tristyly) floral morphs that have anthers and stigmas<br />
placed at reciprocal heights. In distylous Primula and most other groups this is<br />
combined with self- and intramorph incompatibility. The system is therefore believed<br />
to promote outcrossing and increase fitness, despite causing a reduction in the<br />
number <strong>of</strong> available mates. It is genetically regulated through the S-supergene, which<br />
determines at least style length, pollen size and anther height. In Primula, some<br />
species lost the system (became monomorphic), display a mixture <strong>of</strong> characters <strong>of</strong><br />
both morphs (i.e. a long style and high anthers, homostyly), and are able to self.<br />
Understanding the importance <strong>of</strong> selfing in these species is key to elucidating the<br />
evolution <strong>of</strong> heterostyly. We use emasculation and pollinator exclusion experiments<br />
to determine the outcrossing rates <strong>of</strong> monomorphic Primula halleri and P. scotica,<br />
and the closely related heterostylous species P. farinosa. Additionally, we investigate<br />
the proposed recombinational origin <strong>of</strong> homostyly and selfing in monomorphic<br />
Primula species by reanalysing data on the thousands <strong>of</strong> crossing experiments<br />
performed by Ernst (1920s-1950s). These analyses are part <strong>of</strong> a PhD project that<br />
aims to better understand diversification in heterostylous groups.<br />
57
P 08<br />
Micromorphological studies on Lallemantia L. (Lamiaceae) species<br />
growing in Turkey<br />
Muhittin Dinç 1 , Nur Münevver Pinar 2 , Süleyman Doğu 3 , Şinasi Yildirimli 4<br />
1 Selçuk University, Education Faculty, Department <strong>of</strong> Biology Education,<br />
42090 Meram, Konya, Turkey; muhdinc@yahoo.com<br />
2 Ankara University, Science Faculty, Department <strong>of</strong> Biology, 06100 Ankara, Turkey;<br />
pinar@science.ankara.edu.tr<br />
3 Selçuk University, Education Faculty, Department <strong>of</strong> Science Education,<br />
42090 Meram, Konya, Turkey; sdogu@selcuk.edu.tr<br />
4 Hacettepe University, Science Faculty, Department <strong>of</strong> Biology, 06532 Beytepe,<br />
Ankara, Turkey; ot@hacettepe.edu.tr<br />
Micromorphological features related with the pollens, nutlets and trichomes <strong>of</strong><br />
Lallemantia L. species growing in Turkey have been investigated mainly based on<br />
scanning electron microscope (SEM). Lallemantia pollens share common<br />
morphological features with the other subfamily Nepetoideae tribe Mentheae subtribe<br />
Nepetinae pollens. However, the fine details are characteristic to differentiate the<br />
pollen among the species. Exine is microreticulate in L. peltata (L.) Fisch. & C.A.<br />
Mey. and L. iberica (M. Bieb.) Fisch. & C. A. Mey., reticulate-foveolate in L.<br />
canescens (L.) Fisch. & C.A. Mey. Similarly, nutlet features are similar in general, but<br />
striking differences occur among the species in surface details. Nutlets are black and<br />
oblong-triangular with V-shaped areoles. The surface is verrucate in L. iberica and L.<br />
canescens, verrucate-rugulate in L. peltata. The warts are regular and separated in L.<br />
peltata, irregular and separated in L. iberica, irregular, and separated or sometimes<br />
associated into 2 to 4 groups in L. canescens. Two types trichome, capitate and<br />
acicular, present on the stems, leaves, calyx and bracts. The results suggest that<br />
although the distribution and micromorphology <strong>of</strong> trichomes has not taxonomic value,<br />
some pollen and nutlet micromorphological characters have the potential to serve as<br />
phylogenetic markers at the specific level in the genus Lallemantia. Hovewer, pollen<br />
characteristics show no correlation with the nutlet characeristics.<br />
58
P 09<br />
Possible hybrid origin <strong>of</strong> the Asian/American alpine genus Askellia<br />
W. A. Weber (Cichorieae, Compositae)<br />
Neela Enke & Birgit Gemeinholzer<br />
Botanic Garden and Botanical Museum Berlin-Dahlem, Freie Universitaet Berlin,<br />
Königin-Luise-Str. 6-8, 14195 Berlin, Germany; n.enke@bgbm.org,<br />
b.gemeinholzer@bgbm.org<br />
The genus Askellia was established by W. A. Weber in 1984. The genus is based on<br />
Crepis L. section Ixeridopsis. The species <strong>of</strong> this section comprise common<br />
morphological characteristics and are distinct from all other Crepis species. The<br />
Askellia group also features a basic chromosome number <strong>of</strong> x=7, a trait otherwise not<br />
known from Crepis. Morphologically the Askellia species seem to be transient<br />
between Crepis and the central Asian genus Youngia.<br />
Askellia is solely distributed throughout mountain ranges in North-America and<br />
Siberia. The most widespread species, A. nana, co-occurs with all other species <strong>of</strong><br />
the genus, while <strong>of</strong> the others one is restricted to N-American Rocky Mountains and<br />
the rest are local or regional endemics <strong>of</strong> central Asian mountain ranges.<br />
Recent molecular work based on nuclear ITS and chloroplast matK sequences now<br />
confirmed W.A.Weber’s exclusion <strong>of</strong> section Ixeridopsis from Crepis as genus<br />
Askellia. The species <strong>of</strong> Askellia are sister to Crepis s.l. in the ITS phylogeny, while<br />
they cluster with Youngia in the chloroplast tree. This discrepancy hints on a hybrid<br />
origin <strong>of</strong> the genus Askellia from ancestors <strong>of</strong> Crepis and Youngia. Ongoing studies<br />
on chromosome features, as well as biogeographic development <strong>of</strong> the genus are<br />
thought to bring further insights to the origin <strong>of</strong> the genus Askellia.<br />
59
P 10<br />
Speciation in Mediterranean mountain systems: Two examples from<br />
Spain and Morocco<br />
Pedro Escobar García, Gerald Schneeweiss and Peter Schoenswetter<br />
Department <strong>of</strong> Biogeography and Botanical Garden, Faculty Center Botany,<br />
University <strong>of</strong> Vienna. Rennweg 14, 1030 Vienna, Austria;<br />
pedro.escobar.garcia@univie.ac.at<br />
The Mediterranean Basin is one <strong>of</strong> the richest and most endangered ecoregions <strong>of</strong><br />
the Earth. Its complex geological history has shaped a large geographical diversity,<br />
with mountains higher than 4,000 m and a variety <strong>of</strong> islands and peninsulas which<br />
allow for a wide range <strong>of</strong> local climates. As a result, 13,000 species are endemic and<br />
concentrate in regional hotspots. With endemism rates higher than 20%, the Baetic-<br />
Rifan mountains (South-East Spain and Northern Morocco) are outstanding focuses<br />
<strong>of</strong> plant diversity. The Lavatera olbia complex is a mainly Western Mediterranean<br />
species group that has undergone up to two homoploid speciation processes in the<br />
Baetic-Rifan mountain systems. The related L. oblongifolia and L. valdesii are<br />
endemic <strong>of</strong> the Alpujarras (Eastern Andalucía, Spain), and <strong>of</strong> the Djebel Mezgout in<br />
the Eastern Rif (Morocco), respectively. Both species are morphologically similar and<br />
have developed marked morphological traits to protect themselves from<br />
environmental aridity. Contrastingly, L. olbia thrives in mesic areas near the<br />
seashore. Though directly related and despite their morphological affinities, L.<br />
valdesii and L. oblongifolia seem to be subjected to different challenges and differ<br />
from the perspective <strong>of</strong> population dynamics. Although both species are<br />
geographically restricted, L. oblongifolia is locally copious, appearing in large<br />
populations composed by individuals <strong>of</strong> different ages, and L. valdesii is known from<br />
a single population <strong>of</strong> less than 500 adult individuals. This work is a primer on the<br />
diversification, character evolution and phylogeography <strong>of</strong> the L. olbia complex in the<br />
Western Mediterranean Basin, and the first molecular study <strong>of</strong> L. valdesii.<br />
60
P 11<br />
Molecular phylogenetics <strong>of</strong> family Cleomaceae inferred from<br />
nuclear sequences with special reference to C3-C4 photosynthesis<br />
evolution, morphology, phylogeography and systematics<br />
Tatiana A. Feodorova 1 , Elena V. Voznesenskaya 2 , Gerald E. Edwards 3 , Eric H.<br />
Roalson 3<br />
1 Department <strong>of</strong> Higher <strong>Plant</strong>s, Biology Faculty, Lomonosov Moscow State University,<br />
Moscow, 119992, Russia; fedor@herba.msu.ru, torreya@mail.ru<br />
2 Laboratory <strong>of</strong> Anatomy and Morphology, V.L. Komarov Botanical Institute <strong>of</strong> Russian<br />
Academy <strong>of</strong> Sciences, Pr<strong>of</strong>. Popov Street 2, 197376, St Petersburg, Russia<br />
3 School <strong>of</strong> Biological Sciences, Washington State University, Pullman, WA 99164-<br />
4236, USA<br />
The goals <strong>of</strong> this study are to reconstruct the evolutionary patterns in the transitions<br />
between C 3 and C 4 photosynthesis and the origin <strong>of</strong> C 4 photosynthesis in Cleome.<br />
This includes determining whether evolution <strong>of</strong> C 4 occurred once or multiple times,<br />
the diversification <strong>of</strong> types <strong>of</strong> photosynthesis in Cleomaceae family, tendencies <strong>of</strong><br />
structural evolution <strong>of</strong> flowers, inflorescences and shoot systems, and biogeography.<br />
In order to determine the frequency and direction <strong>of</strong> changes in types <strong>of</strong><br />
photosynthesis and some floral and inflorescences structures, and biogeographical<br />
patterns for the Cleomaceae, we have inferred the phylogeny within the family from<br />
sequences <strong>of</strong> the internal transcribed spacers (ITS) <strong>of</strong> the nuclear ribosomal DNA.<br />
Our preliminary phylogenetic analysis showed that C 3 photosynthesis is the ancestral<br />
condition in Cleomaceae, and intermediate and C 4 photosynthesis are both derived<br />
conditions. C 4 photosynthesis is present in clade Gymnogonia (C. angustifolia, C.<br />
gynandra) and clade Siliquaria (C. oxalidea). Cleome paradoxa is a C 3 -C 4<br />
intermediate which occurs in the evolutionary lineage Gymnogonia, while C. allamani<br />
is a putative C 3 -C 4 intermediate, which is found in clade Siliquaria. Using the<br />
phylogenetic framework <strong>of</strong> Cleomaceae, we describe detailed relationships between<br />
photosynthetic type, hypothesis <strong>of</strong> origin and evolution <strong>of</strong> C 4 photosynthesis. Usually<br />
the shoot, inflorescences, floral and leaf structure are highly conserved at the lower<br />
taxonomic levels. We use our phylogenetic hypothesis to determine the frequency<br />
and direction <strong>of</strong> changes in shoot, inflorescences, floral and leaf structure in<br />
Cleomaceae family members and propose hypotheses on the direction <strong>of</strong> change <strong>of</strong><br />
these features. Our phylogenetic analyses suggest that both Peritoma and Polanisia<br />
have a North American origin. Polanisia taxa were widespread in the Old World.<br />
Thyllacophora-Buhsea groups and Cleome s.str have Afro-Asian origin and migrated<br />
to Australia and America. The taxonomy <strong>of</strong> Cleomaceae and systematic position <strong>of</strong><br />
species Cleome s.lat. are controversial. Implications for taxonomy and ranges <strong>of</strong><br />
Polanisia, Peritoma, Buhsea, Thyllacophora, Cleome s.str. taxa are discussed. This<br />
work was supported by CRDF grant RUB1-2829 ST-06.<br />
61
P 12<br />
Karyotype analysis and new chromosome number reports in Silene<br />
L. species (Sect. Auriculatae Boiss.)<br />
Abbas Golipour & Masoud Sheidai<br />
Faculty <strong>of</strong> Biological Sciences, Shahid Beheshti University, G.C., Tehran, Iran;<br />
abbas.gholipuor@gmail.com<br />
Silene L. is a very large genus <strong>of</strong> Caryophyllaceae containing c. 700 species which<br />
are mostly distributed throughout the northern hemisphere, <strong>of</strong> them 110 species grow<br />
in Iran. Silene section Auriculatae is the largest section containing about 35 species,<br />
out <strong>of</strong> which 21 species are endemic to Iran. Karyotypic analyses and new<br />
chromosome numbers <strong>of</strong> 13 populations <strong>of</strong> 11 (S. palinotricha, S. Sojakii, S.<br />
Gertraudiae, S. elymaitica, S. Meyeri, S. pseudonurensis, S. dshuparensis, S.<br />
eriocalycina, S. araratica, S. prilipkoana and S. commelinifolia) species have been<br />
reported for the first time. The chromosome number <strong>of</strong> all species studied were 2n =<br />
2x = 24 and mainly <strong>of</strong> metacentric (m) and sub-metacentric (sm) types. The ANOVA<br />
and LSD tests reveal a significant differences (p 0. 90), while in the second factor<br />
(8%), the ratio <strong>of</strong> long arm to short arm <strong>of</strong> the chromosomes 11 and 12 as well as<br />
TF% are the most variable characters (r >0. 70). Therefore these karyotypic<br />
characters play role in the genomic changes <strong>of</strong> the Silene species.<br />
62
P 13<br />
Phylogeography <strong>of</strong> the arctic-alpine Euphrasia minima complex<br />
(Orobanchaceae)<br />
Gussarova, G., 1, 3 Alsos, I.G. 2 and Brochmann C. 3<br />
1 Dept. Botany, St. Petersburg State University, Universitetskaya nab. 7/9, 199034 St.<br />
Petersburg, Russia; galina.gusarova@nhm.uio.no<br />
2 Department <strong>of</strong> Arctic Biology, The University Centre in Svalbard (UNIS), Pb. 156,<br />
9171 Longyearbyen, Norway; inger.alsos@unis.no<br />
3 National Centre for Biosystematics, Natural History Museum, University <strong>of</strong> Oslo, PO<br />
Box 1172 Blindern,NO-0318 Oslo, Norway; christian.brochmann@nhm.uio.no<br />
The Euphrasia minima Jacq. ex DC. aggregate includes the arctic E. wettsteinii and<br />
the alpine E. minima and E. tatrae. The plants are annual hemiparasites and thus<br />
represent rare exceptions in the perennial-dominated arctic habitats. We studied<br />
genetic differentiation to infer the migration history <strong>of</strong> this species group, with<br />
emphasis on the Arctic. Bayesian clustering, multilocus assignment tests, tree- and<br />
network building were applied to molecular data from 217 individuals from 43<br />
populations. Three distinct AFLP groups were identified: Central European (Alps and<br />
Pyrenees), East Atlantic (Kola, Pechora and Urals, N Norway, Scotland, Svalbard)<br />
and West Atlantic (Newfoundland, E and W Greenland, Iceland, N Norway,<br />
Svalbard). A parsimony based cpDNA phylogeny confirmed a major split between the<br />
alpine and arctic populations, also evident in the AFLP data. The arctic cpDNA<br />
lineage was split into two weakly supported sublineages, corresponding to the two<br />
northern AFLP groups. Our results thus suggest two distinct northern glacial refugia,<br />
one eastern and one western, and that plants from both <strong>of</strong> them colonized<br />
Scandinavia and Svalbard after the last glaciation. The two arctic lineages apparently<br />
diverged before the onset <strong>of</strong> the Pleistocene glaciations (4.9 Mya), according to<br />
estimates based on the cpDNA data.<br />
63
P 14<br />
Polyploid cytotypes <strong>of</strong> Senecio jacobaea in Central and Eastern<br />
Europe<br />
Iva Hodálová 1 , Pavol Mereďa Jr. 1 , Alexandra Vinikarova 2 , Vít Grulich 2 & Viera<br />
Feráková 1<br />
1 Institute <strong>of</strong> Botany, Slovak Academy <strong>of</strong> Sciences, Dúbravská cesta 14, SK-845 23<br />
Bratislava, Slovak Republic; iva.hodalova@savba.sk, pavol.mereda@savba.sk,<br />
viera.ferakova@savba.sk<br />
2 Institute <strong>of</strong> Botany and Zoology, Masaryk University, Kotlářská 2, CZ-611 37 Brno,<br />
Czech Republic; 106286@mail.muni.cz, grulich@sci.muni.cz<br />
The occurrence <strong>of</strong> polyploid races within plant species continues to be <strong>of</strong> interest to<br />
plant biosystematists and evolutionists. Some studies have suggested that polyploidy<br />
has played a much more important role in plant evolution than believed previously.<br />
Senecio jacobaea (Asteraceae) is an example <strong>of</strong> a karyologically variable species<br />
comprising two cytotypes in Central and Eastern Europe: tetraploid (2n = 40) and<br />
octoploid (2n = 80). Tetraploids are widespread throughout Europe; octoploids are<br />
restricted only to: (1) Central Europe – Pannonian basin and (2) Eastern Europe –<br />
Podillya highlands, Ukraine. Although tetraploid populations <strong>of</strong> S. jacobaea have<br />
been studied recently from various points <strong>of</strong> view (using molecular treatments), there<br />
are no comprehensive studies devoted to the octoploids. Results <strong>of</strong> our<br />
morphological evaluation <strong>of</strong> populations <strong>of</strong> S. jacobaea from Central and Eastern<br />
Europe revealed that "Ukrainian" octoploids are morphologically different from<br />
“Ukrainian” tetraploids, as well as from both tetraploid and octoploid plants occurring<br />
in the Pannonian basin. This might indicate for this polyploid a different taxonomic<br />
status and evolutionary history.<br />
In our forthcoming study, we will use amplified fragment length polymorphism (AFLP)<br />
marker pr<strong>of</strong>iles to elucidate (1) taxonomic position <strong>of</strong> octoploid populations from the<br />
Podillya highlands, and (2) origin <strong>of</strong> octoploid cytotypes occurring in Pannonian basin<br />
and Podillya highlands [whether they form a monophyletic group or they have arisen<br />
recurrently at different locations (having multiple origin)].<br />
64
P 15<br />
A preliminary approach to the genetic structure <strong>of</strong> Arabis alpina<br />
populations from the Arctic, Europe and Morocco<br />
Pablo T. Ibarra & Julia Rueda<br />
Department <strong>of</strong> Genetics, Faculty <strong>of</strong> Biology, UCM. Ciudad Universitaria, 28040<br />
Madrid, Spain. ptibarra@bio.ucm.es.<br />
Arabis alpina L. is a world-wide Arctic alpine species growing from Kilimanjaro to the<br />
North Pole. Recently, some studies have been carried out on its phylogeography<br />
providing some clues about the postglacial migration <strong>of</strong> this taxon. Consequently, our<br />
interest is focussed on a wide study <strong>of</strong> the genetic structure <strong>of</strong> the Northern<br />
Hemisphere populations.<br />
We sampled one population from Morocco, five populations from Europe and one<br />
from Greenland, in order to estimate the genetic variation within and between<br />
populations. The estimates were done by means <strong>of</strong> ISSR markers. Six primers were<br />
chosen which gave more than 50 polymorphic markers. Most markers did not detect<br />
variation in the Arctic populations, being difficult to distinguish among individuals<br />
coming from Greenland or Island. The population from Tatry mountains was the most<br />
variable followed by the Moroccan and Pyrenean populations. Not surprisingly, the<br />
south Spanish population <strong>of</strong> Sierra Nevada presented low genetic variation probably<br />
due to the isolation <strong>of</strong> this mountain range. Generally, most <strong>of</strong> the genetic variation<br />
was found between populations. However, a Pyrenean population was clearly split<br />
into two subpopulations: Five individuals collected in a damn in the lower part <strong>of</strong> the<br />
valley could be clearly distinguished from five individuals collected in a river margin in<br />
the upper part.<br />
A. alpina populations seem to have strong genetic differentiation between<br />
geographically close populations. This scenario could be due to a high selfing rate,<br />
common in the Cruciferae family, and to the scattered discontinuous distribution <strong>of</strong><br />
populations, which is commonly observed in the field for the species. That strategy<br />
could be long term limiting due to the reduced genetic variation within populations. It<br />
seems to be the result <strong>of</strong> many trials that occasionally generated rather favourable<br />
ecotypes that became widespread. This might have been the origin <strong>of</strong> the<br />
widespread, and genetically uniform, Arctic A. alpina whose populations showed a<br />
pattern which was clearly separated from those <strong>of</strong> the alpine ones.<br />
65
P 16<br />
Evolutionary processes in continental island systems: molecular<br />
phylogeography <strong>of</strong> the Aegean Nigella arvensis L. complex<br />
(Ranunculaceae) by means <strong>of</strong> AFLP markers<br />
Ursula Jaros, Andreas Tribsch, Hans Peter Comes<br />
University <strong>of</strong> Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria,<br />
ursulajaros@yahoo<br />
The complex paleogeographic history <strong>of</strong> the Aegean Archipelago makes this mostly<br />
continental island system a unique biogeographic setting for the study <strong>of</strong> plant<br />
evolution and speciation. In this area, the genus Nigella has radiated during the<br />
(Late) Quaternary into six species (12 taxa) <strong>of</strong> mainly allo- or parapatric distribution<br />
(N. arvensis complex). While most taxa are outcrossing and interfertile, two species<br />
are predominantly selfing and reproductively isolated from each other and the former.<br />
Phylogeographic evidence based on chloroplast (cp) DNA (Bittkau & Comes, 2005)<br />
indicated that geographic isolation, limited seed flow, and genetic drift had a major<br />
role in the evolution <strong>of</strong> the complex, but failed to resolve inter-species relationships.<br />
Here, we will re-address these issues based on a survey <strong>of</strong> amplified fragment length<br />
polymorphisms (AFLPs) across all species <strong>of</strong> the complex (48 populations/568<br />
individuals). Preliminary results and conclusions drawn from genetic distance and<br />
diversity analyses are: (1) Most nominal species <strong>of</strong> the complex are genetically<br />
distinct entities, suggesting that erratic instances <strong>of</strong> cpDNA haplotype sharing across<br />
species boundaries are due to incomplete lineage sorting rather than ongoing<br />
hybridization. (2) The enigmatic disjunct distribution <strong>of</strong> N. arvensis ssp. brevifolia in<br />
Crete and Rhodes likely reflects the existence <strong>of</strong> two separate species. (3) Although<br />
the spatial-temporal origin <strong>of</strong> the two selfing island taxa (N. doerfleri, N. stricta) is not<br />
yet fully understood, they clearly do form separate genetic entities rather than being<br />
nested within the outcrossing alliance. (4) Given the genetic distinctness <strong>of</strong> N.<br />
doerfleri, its present co-occurrence with the outcrosser N. degenii in the Cyclades is<br />
best interpreted as a zone <strong>of</strong> secondary contact. (5) Not unexpectedly, levels <strong>of</strong><br />
genetic diversity are markedly reduced in both N. doerfleri and N. stricta compared to<br />
the outcrossers, most likely as a result <strong>of</strong> reductions in effective population size due<br />
to selfing. In addition, however, the former taxon is markedly depauperate in terms <strong>of</strong><br />
rare marker fragments. This may reflect a pronounced difference in the demography<br />
<strong>of</strong> these two selfers, with the widespread N. doerfleri having been more strongly<br />
affected by founder effects in the wake <strong>of</strong> (remote) island colonization than the<br />
narrow endemic N. stricta (Crete, Kithira).<br />
66
P 17<br />
Polyploid evolution in plants: the effect <strong>of</strong> genome duplication on<br />
self-incompatibility systems in Arabidopsis<br />
Marte H. Jørgensen 1, 2 *, Barbara Mable 2 , Anne K. Brysting 1<br />
1 Centre for Ecological and Evolutionary Synthesis (CEES), Department <strong>of</strong> Biology,<br />
University <strong>of</strong> Oslo, P.O. Box 1066 Blindern, NO-0316 OSLO, Norway<br />
2 Division <strong>of</strong> Environmental and Evolutionary Biology, Graham Kerr Building,<br />
University <strong>of</strong> Glasgow, Glasgow G12 8QQ, United Kingdom; *martej@ulrik.uio.no,<br />
Polyploidy, i.e., the duplication <strong>of</strong> entire nuclear genomes, has shaped the evolution<br />
<strong>of</strong> major lineages <strong>of</strong> eukaryotes and is particularly prominent in flowering plants.<br />
Although many duplicated genes will be silenced or lost through time, more than<br />
expected from classical theory are retained in the genomes <strong>of</strong> polyploids. Identifying<br />
diploid predecessors <strong>of</strong> tetraploid populations will enable us to compare directly<br />
polyploids with their parental taxa. The evolution <strong>of</strong> several polyploid lineages in<br />
Arabidopsis and the close relationship to the model species A. thaliana makes this<br />
genus a highly interesting model system for studies on polyploid evolution. We use<br />
this to study the consequences <strong>of</strong> polyploidisation on genetic diversity in natural<br />
populations <strong>of</strong> A. lyrata and A. arenosa, with emphasis on the self-incompatibility (SI)<br />
system. Four diploid and four tetraploid populations <strong>of</strong> both taxa will be analysed by<br />
low-copy nuclear genes (PgiC, scADH, CHS) to identify the origin <strong>of</strong> the tetraploids,<br />
and allelic diversity <strong>of</strong> the populations will be compared using genotyping <strong>of</strong> S-alleles.<br />
67
P 18<br />
Chemodiversity <strong>of</strong> essential oil components in some Ferula<br />
(Apiaceae) species from Iran<br />
Mohammad Reza Kanani 1 , Mohammad Reza Rahiminejad 1 , Shahrokh Kazempour<br />
Osaloo 2 & Valioallah Mozaffarian 3<br />
1 Department <strong>of</strong> Biology, Faculty <strong>of</strong> Sciences, Isfahan University, Isfahan, Iran;<br />
2 Department <strong>of</strong> Biology, Faculty <strong>of</strong> Basic Sciences, Tarbiat Modarres University,<br />
Tehran, Iran;<br />
3 Department <strong>of</strong> Botany, Research Institute <strong>of</strong> Forests and Rangelands Iran, Tehran,<br />
Iran; m_kanani@stf.sbu.ac.ir<br />
The genus Ferula L. belonging to the Apioideae subfamily <strong>of</strong> Apiaceae consists <strong>of</strong> c.<br />
177 species which are mostly distributed throughout the central asia, <strong>of</strong> which 32<br />
taxa containing 16 endemic species are growing in Iran. A chemodiversity <strong>of</strong><br />
essential oil components in nine Ferula species (F. hirtella, F. badghysii, F.<br />
diversivittata, F. foetida, F. tabasensis, F. orientalis, F. galbaniflua, F. gummosa and<br />
F. persica) were studied. The oils were obtained by hydrodistillation from aerial<br />
flowering parts <strong>of</strong> samples and analyzed by GC-MS. The identified constituents<br />
revealed significant qualitative and quantitative differences among species studied.<br />
For the evaluation <strong>of</strong> chemotaxonomic significance <strong>of</strong> the essential oil components,<br />
each specific and or common identified compound was used as marker. α-Pinene<br />
was the common component almost in all analyzed oils except for the first three<br />
species. Germacrene B and germacrene D were the major compounds <strong>of</strong> F. hirtella,<br />
while verbenone isomers were the principal ones for F. diversivittata. The major<br />
constituents in other species studied were myrcene, thiophene derivatives, sabinene,<br />
nonane and octane, β-pinene, carotol and sabinene, respectively. Finally, a detailed<br />
discussion on chemodiversity and chemotaxonomic relationship among species<br />
investigated are presented.<br />
68
P 19<br />
Biosystematic study on the genus Onobrychis in Iran<br />
Massoud Ranjbar, Roya Karamian, Fatemeh Hajmoradi, Anahita Hadadi & Saeedeh<br />
Afsari<br />
Department <strong>of</strong> Biology, Faculty <strong>of</strong> Science, Bu-Ali Sina University, P.O.Box<br />
65175/4161, Hamedan, Iran; E-mail:ranjbar@basu.ac.ir<br />
The genus Onobrychis with nearly 130 species is mainly distributed in the north<br />
temperate regions, but centers <strong>of</strong> its diversity are in the eastern Mediterranean area<br />
and western Asia. Many species are exploited as high-protein fodder plants for<br />
ruminants and equines and, due to the specific peculiarity <strong>of</strong> nitrogen fixation; they<br />
play an important role in the enrichment <strong>of</strong> soil, increasing the nutritive value <strong>of</strong><br />
drought-resistant pasture. Biosystematic study on three large sections <strong>of</strong> the genus<br />
was performed using morphometric and cytogenetic data. In morphometry, more than<br />
45 qualitative and quantitative characters in 70 populations <strong>of</strong> 30 species were<br />
studied. Meiotic studies were performed on above taxa concerning meiotic<br />
chromosome counts; polyploidy level, chiasma frequency/distribution, chromosome<br />
association and segregation. The species and populations studied possessed 2n =<br />
14, 16 and 28 chromosome number. The chromosome numbers <strong>of</strong> the most species<br />
are reported for the first time. Meiotic abnormalities observed included laggard<br />
chromosome formation, stickiness, desynapsis and cytomixis. Unreduced pollen<br />
grains were observed in some <strong>of</strong> the species, which differed significantly in their size<br />
compared to the normal (reduced) pollen grains. Cluster analysis <strong>of</strong> morphometric<br />
and meiotic data and ordination <strong>of</strong> species based on the first two principal component<br />
axes grouped the taxa with similar characteristics. Pollen fertility was studied in all<br />
taxa that showed a significant positive correlation with the frequency <strong>of</strong> terminal and<br />
total chiasma as well as proper segration <strong>of</strong> chromosomes during anaphase and<br />
telophase stages. B-chromosomes were observed in some species affecting the<br />
chiasma frequency/distribution as well as chromosome association.<br />
69
P 20<br />
Nutlet morphology <strong>of</strong> Turkish Acinos Miller species<br />
Ayla Kaya 1 & Muhittin Dinç 2<br />
1 Anadolu University, Faculty <strong>of</strong> Pharmacy, Department <strong>of</strong> Pharmaceutical Botany,<br />
26470 Eskisehir, Turkey; aykaya@ anadolu.edu.tr<br />
2 Selçuk University, Education Faculty, Department <strong>of</strong> Biology Education,<br />
42090 Meram, Konya, Turkey; muhdinc@yahoo.com<br />
Nutlet characters within the family <strong>of</strong> Lamiaceae have the taxonomic significance. In<br />
this study, nutlet morphology <strong>of</strong> 6 taxa <strong>of</strong> Turkish Acinos species was examined using<br />
both stereoscopic and scanning electron microscopy (SEM). Different morphological<br />
types are described and illustrated according to features <strong>of</strong> the nutlet surface. It is<br />
clear that external nutlet characters, especially surface ornamentation, have a<br />
diagnostic character to separate for Acinos species.<br />
70
P 21<br />
Anatomical, ecological and palynological investigations on Allium<br />
cassium Boiss. (Liliaceae)<br />
Muhittin Dinç, Baştürk Kaya, Süleyman Doğu<br />
Allium cassium is East Mediterranean element growing in Turkey as well as in<br />
Latakia, Cyprus, and Lebanon. This study firstly presents investigations into the<br />
anatomical, ecological and palynological features <strong>of</strong> A. cassium colected from<br />
province <strong>of</strong> Mersin, South Anatolia. For anatomical studies, cross-sections <strong>of</strong> the<br />
stems, leaves and surface sections <strong>of</strong> the leaves <strong>of</strong> A. cassium are investigated.<br />
Palynologically, the pollens <strong>of</strong> the species are studied using both LM and SEM.<br />
Furthermore, for ecological investigations, the climatic features <strong>of</strong> its habitat, and its<br />
typical associated species are briefly discussed. As a result <strong>of</strong> the studies, vasculer<br />
bundles <strong>of</strong> the stem are regularly distributed on two axes, the leaves are isolateral<br />
and amphistomatic with anomocytic stomata, the pollens are tricolpate, prolate, with<br />
perforate ornamentation. A. cassium ecologically grows on river banks and alpine<br />
steppe at an elevation <strong>of</strong> 1700-2100 m, on which the first variant <strong>of</strong> the East<br />
Mediterranean precipitation regime prevails.<br />
71
P 22<br />
A morphological cladistic analysis <strong>of</strong> tribe Eritrichieae<br />
(Boraginaceae) in Iran<br />
Maryam Khoshsokhan 1 , Shahrokh Kazempour Osaloo 2 , Farideh Attar 3 , Sara<br />
Saadatmend 4 , Taher Nejadsatari 4<br />
1 Biology Department, Basic Science Faculty, Azad University <strong>of</strong> Qom, Qom, Iran,<br />
maryamkhoshsokhan@yahoo.com<br />
2 Biology Department, Basic Science Faculty, Tarbiat Modarres university, Tehran,<br />
Iran<br />
3 <strong>Plant</strong> Biology Department, Basic Science Faculty, Tehran University, Tehran, Iran;<br />
4 Biology Department, Basic Science Faculty, Azad University, Science and Research<br />
Branch, Tehran, Iran<br />
A cladistic analysis <strong>of</strong> tribe Eritrichieae (Boraginaceae) based on morphological data<br />
is presented. The data matrix comprises 42 ingroup taxa and Trichodesma incanum,<br />
T. africanum, Cynoglossum creticum and C. <strong>of</strong>ficinale as outgroups. 43 vegetative<br />
and reproductive characters using maximum parsimony approaches implemented in<br />
PAUP* were analyzed, in two stages. The first (equally weighted) and second<br />
(reweighted by rescaled consistency index) analyses generated 774 (L=221 steps,<br />
CI=0.290, RI=0.691) and 15 (L=42.59 steps, CI=0.501, RI=0.861) shortest trees,<br />
respectively. From the base <strong>of</strong> trees, Asperugo procumbens was the first branch<br />
followed by two species <strong>of</strong> Cynoglossum as a sister to an assemblange <strong>of</strong><br />
Myosotideae-Eritrichieae. Based on morphological data, Eritrichieae is appeared to<br />
be monophyletic. Within this clade, Heterocaryum, Rochelia and Lepechiniella are<br />
monophyletic but monophyly <strong>of</strong> Lappula is not clear. These data are almost<br />
congruent with molecular analysis results <strong>of</strong> both nuclear and chloroplast DNAs.<br />
72
P 23<br />
Seed flavonoids in some members <strong>of</strong> Euphorbia (Euphorbiaceae)<br />
from Markazi province in Iran<br />
Masomeh Khosravi 1 , Mitra Noori 2 & Akram Ahmadi 2<br />
1 Islamic Azad University, Ashtian Branch, Ashtian, Iran<br />
2 Biology Department, Faculty <strong>of</strong> Science, University <strong>of</strong> Arak, Arak, Iran<br />
Euphorbia is one <strong>of</strong> the largest genera in Euphorbiaceae with more than 2000<br />
species in the world and about 100 species in Iran. The taxonomically most important<br />
phenolics are the flavonoids that are a class <strong>of</strong> plant secondary metabolites. Seed<br />
flavonoids were one <strong>of</strong> the character sets used to assess the relationships among<br />
taxa. Aqueous-ethanolic extracts <strong>of</strong> seeds from 15 collected Euphorbia species from<br />
different part <strong>of</strong> Markazi Province <strong>of</strong> Iran were examined for flavonoid detection,<br />
isolation and identification by 2-dimensional paper chromatography (2-DPC), thin<br />
layer chromatography (TLC). Voucher specimens <strong>of</strong> each sample were prepared for<br />
reference. Studies <strong>of</strong> seed flavonoids showed some phytochemical characters such<br />
as total number <strong>of</strong> flavonoids, kaempherol, quercetin, myricetin, flavone and<br />
dihydr<strong>of</strong>lavonol glycoside are valuable for chemotaxonomy and their usage.<br />
73
P 24<br />
Inventory <strong>of</strong> the flora <strong>of</strong> the Nature Park Učka<br />
Tamara Kirin, Dario Hruševar, Marina Magajne, Luka Škunca<br />
BIUS-Biology Student Association, Rooseveltov trg 6, 10 000 Zagreb, Croatia;<br />
tamarakirin@gmail.com, hrusevar@botanic.hr, marina.magajne@gmail.com,<br />
skuncal@gmail.com<br />
The Nature Park Učka is located in the area <strong>of</strong> Učka mountain massif and adjacent<br />
part <strong>of</strong> Ćićarija plateau (N – NE part <strong>of</strong> Istrian peninsula), west Croatia. The area <strong>of</strong><br />
the Park is 160 km 2 and the highest part, named Vojak, is 1401 meter above the sea<br />
level. According to the climate classification by Köppen the explored parts belong<br />
mostly to the warm temperate and fully humid climate with warm summer (Cfb). The<br />
main part <strong>of</strong> Park lies on limestone and flysch, which allowes the existance <strong>of</strong> many<br />
groundwater collectors. Geological structure, together with climate, is the main factor<br />
<strong>of</strong> development <strong>of</strong> numerous plant taxa.<br />
Inventory <strong>of</strong> the flora <strong>of</strong> the Nature Park Učka was held in July 2006 on 18 before<br />
arranged locations in order to cover the most different habitat types. The aim was to<br />
collect the preliminary data about floristic biodiversity <strong>of</strong> the Park.<br />
During the research 373 different plant taxa from 69 families have been found. The<br />
most numerous families are Poaceae (9.6%), Fabaceae and Asteraceae (8.6%<br />
each). The most common life form is hemicryptophyte (49,7%) followed by<br />
phanerophyta (16.4%), geophyta (12.9%), therophyta (9.7%), chamaephyta (8,9%),<br />
nanophanerophyta (2.1%) and only one form <strong>of</strong> hidrophyta. 18 species (EN 1, NT 6,<br />
VU 4, LC 6, DD 1) from The Croatian Red Book <strong>of</strong> Vascular Flora (Nikolic, T. &<br />
Topic, J., eds. 2005) were found. According to the Nature Conservation Law 16 taxa<br />
are strictly protected and 63 taxa are protected.<br />
74
P 25<br />
The genus Onosma in the Alps<br />
Vladislav Kolarčik 1,2 & Pavol Mártonfi 2<br />
1 Institute <strong>of</strong> Botany, Slovak Academy <strong>of</strong> Sciences, Dúbravská cesta 14, SK-845 23<br />
Bratislava, Slovak Republic; vladislav.kolarcik@savba.sk<br />
2 Institute <strong>of</strong> Biology and Ecology, Department <strong>of</strong> Botany, Faculty <strong>of</strong> Science, P. J.<br />
Šafárik University, Mánesova 23, SK-04154 Košice, Slovak Republic;<br />
pavol.martonfi@upjs.sk<br />
In the Alps, the genus Onosma is represented by two groups <strong>of</strong> taxa with bimodal<br />
karyotypes: “O. pseudoarenaria“ group (2n=12L + 14S) and “O. arenaria“ group<br />
(2n=12L + 8S). Individual taxa <strong>of</strong> the mentioned groups have originated through<br />
allopolyploidization and are characterized by uncertain morphological differences.<br />
Evaluation <strong>of</strong> characters usually used to distinguish individual taxa (type <strong>of</strong><br />
indumentum, shape <strong>of</strong> leaves, length and width <strong>of</strong> leaves, margin <strong>of</strong> anthers and<br />
branching <strong>of</strong> stems) are nearly always problematic. Discrepancies in using <strong>of</strong> their<br />
names, occurring also due to taxonomic complications, are known in the literature. A<br />
review <strong>of</strong> taxonomic concepts and contradictory literature data related to<br />
nomenclature <strong>of</strong> individual taxa <strong>of</strong> the presented groups in the Alps and possible<br />
solutions <strong>of</strong> the described problems are given.<br />
75
P 26<br />
Phylogeography <strong>of</strong> Sempervivum montanum<br />
Grazyna Korbecka 1 , Dominik Roman Letz 2 , Michal Ronikier 1 , Elzbieta Cieslak 1 and<br />
Intrabiodiv Consortium<br />
1 Institute <strong>of</strong> Botany, Polish Academy <strong>of</strong> Sciences, Lubicz 46, PL-31-512, Krakow,<br />
Poland<br />
2 Institute <strong>of</strong> Botany, Slovak Academy <strong>of</strong> Sciences, Dúbravská cesta 14, SK-845 23<br />
Bratislava, Slovakia<br />
We analyzed the patterns <strong>of</strong> genetic variation <strong>of</strong> Sempervivum montanum<br />
(Crassulaceae), a European mountain plant species. Our dataset consisted <strong>of</strong><br />
amplified fragment length polymorphism (AFLP) data <strong>of</strong> 118 individuals from 43<br />
populations in the Alps, the Carpathians and single localities in the south <strong>of</strong> Europe.<br />
The analysis <strong>of</strong> the AFLP pr<strong>of</strong>iles resulted in scoring 121 repeatable markers. On<br />
average, the percentage <strong>of</strong> polymorphic markers and Nei’s gene diversity were lower<br />
for the Carpathian populations compared to the Alpine ones. Interestingly, within the<br />
Alps, Nei’s gene diversity increased with longitude; it was the highest between 13<br />
and 15 degree, in Eastern Alps. Principal coordinate analysis revealed the highest<br />
differentiation between the Carpathians and the Alps. More detailed patterns <strong>of</strong> the<br />
genetic structure were studied using Bayesian analysis.<br />
76
P 27<br />
ENSCONET, the European Native Seed Conservation Network<br />
Jaromír Kučera 1 , Marek Slovák 1 & Karol Marhold 1,2<br />
1 Institute <strong>of</strong> Botany, Slovak Academy <strong>of</strong> Sciences, Dúbravská cesta 14, SK-845 23<br />
Bratislava, Slovak Republic; judita.lihova@savba.sk, karol.marhold@savba.sk &<br />
2 Department <strong>of</strong> Botany, Charles University, Benátská 2, CZ-128 01 Praha 2, Czech<br />
Republic<br />
Ensconet, the European Native Seed Conservation Network, walked its first steps in<br />
November 2004 after a long preparation process. The network, headed by the<br />
Millenium Seed Bank (Royal Botanical Gardens, Kew), is composed <strong>of</strong> 24 institutes<br />
from 17 European countries and two associate members, covering 9 <strong>of</strong> 10 major biogeographical<br />
regions <strong>of</strong> Europe. It is a Co-ordination Action funded under the<br />
European Union’s 6 th Framework Programme. The project links to other national and<br />
European conservation networks and comprises a wealth <strong>of</strong> seed banking<br />
experience. Its purpose is the improved quality, coordination and integration <strong>of</strong><br />
European seed conservation practice, policy and reasearch for native plant species,<br />
and to assist EU conservation policy and its obligations to the Convention on<br />
Biological Diversity and its Global Strategy for <strong>Plant</strong> Conservation.<br />
ENSCONET co-ordinates and enhances activities <strong>of</strong> several European seed banks,<br />
botanical gardens or institutes interested in seed conservation, in order to reduce<br />
duplicated efforts in establishing and improving technologies for seed collecting,<br />
curation and data management. That is being achieved through creating common<br />
high standard protocols for collection and curation, compiling data on species held in<br />
European seed banks. At this moment, a virtual seed bank is being created for<br />
European native plants. The 24 partners are establishing priority species lists for new<br />
seed collection in each <strong>of</strong> the 9 bio-geographical regions. ENSCONET’s perspective<br />
is that it is essential to preserve seed diversity in order to avoid the extinction <strong>of</strong><br />
native species from European regions. ENSCONET work is organised in four main<br />
activities: collection, curation, data management and dissemination. The<br />
dissemination activity group communicates with the general public, decision makers<br />
and research colleagues. It will achieve over the years a better public understanding<br />
<strong>of</strong> seed banking and <strong>of</strong> the importance <strong>of</strong> seed banking <strong>of</strong> native plants.<br />
77
P 28<br />
Cytological studies on some members <strong>of</strong> Monochlamydeae from<br />
Patiala and adjoining areas<br />
V.K.Sinohal, M.K.Sidhu and Puneet Kumar*<br />
Department <strong>of</strong> Botany, Punjabi University, Patiala-147002, India<br />
*puneetbotcyto@gmail.com<br />
The present detailed meiotic studies pertain to 25 species grouped under 18 genera<br />
belonging to eight families <strong>of</strong> Monochlamydeae from Patiala and adjoining areas. Out<br />
<strong>of</strong> these, 15 are herbs and the remaining are trees and shrubs. The chromosome<br />
counts for nine species, Boerhaavia diffusa (2n=4x=52), Aerva scandens<br />
(2n=2x=16), Chenopodium album (2n=4x=36), C. ambrosoides (2n=4x=32), Rumex<br />
hastatus (2n=2x=18) Cinnamomum camphora (2n=2x=24), Aleurites moluccana<br />
(2n=2x=22), Codiaeum variegatum (2n=6x=72) and Jatropha panduraefolia<br />
(2n=2x=22) have been studied for the first time from North West India. In spite <strong>of</strong><br />
abnormalities in disjunction <strong>of</strong> 1-2 bivalents in some PMCs which have led to the<br />
formation <strong>of</strong> laggards during anaphases/telophases in Debregeasia hypoleuca<br />
(2n=28) and Rumex dentatus (2n=20), microsporogenesis is perfectly normal<br />
resulting to very high pollen fertility. Cytomixis, involving inter PMC transfer <strong>of</strong><br />
chromatin has been reported to be present in Rumex hastatus (2n=18) and<br />
Euphorbia royleana (2n=120). In these species, cytomixis does not seem to affect the<br />
meiotic course as pollen fertility is found to be very high. In rest <strong>of</strong> the species meiotic<br />
course is normal and results into high pollen viability. Intraspecific chromosomal<br />
variations are present in several currently investigated species like, Boerhaavia<br />
diffusa (2n=26, 52), Bougainvillea glabra (2n=20, 34), Achyranthus aspera (2n=14,<br />
21, 36, 42, 84), Aerva scandens (2n=16, 36, 52), Amaranthus spinosus (2n=32, 34),<br />
Chenopodium album (2n=18, 36, 42, 54), C. ambrosoides (2n=16, 32, 36, 64),<br />
Aleurites moluccana (2n=22,44), Codiaeum variegatum (2n=24, 48, 72, 80, 84, 90,<br />
96, 100, 108, 112, 116, 120, 124, 72), Euphorbia helioscopia (2n=12,42,) E. hirta<br />
(2n=12, 18, 20), E. pulcherrima (2n=21, 26, 28, 30, 42, 44, 56), E. royleana<br />
(2n=120+0-2B,120) and Cannabis sativa (2n=20, 40, 80). It suggests therefore, that<br />
there is a need to reinvestigate these species also from other areas.<br />
78
P 29<br />
Differentiaton <strong>of</strong> Salix herbacea and S. reticulata (Salicaceae)<br />
populations in Europe<br />
Katarzyna Marcysiak, Amelia Lewandowska<br />
Department <strong>of</strong> Botany, Institute <strong>of</strong> Environmental Biology, Kazimierz Wielki<br />
University, Ossolinskich 12, 85-072 Bydgoszcz, Poland; marc@ukw.edu.pl<br />
Salix reticulata and Salix herbacea are examples <strong>of</strong> arctic-alpine plants, with<br />
disjunction in their ranges since the end <strong>of</strong> the last glaciation. The aim <strong>of</strong> the present<br />
work is to answer the question whether this period has been sufficient for<br />
morphological differentiation between contemporary isolated populations to occur.<br />
Six populations <strong>of</strong> Salix reticulata and 7 <strong>of</strong> S. herbacea from the Tatra Mountains, the<br />
western part <strong>of</strong> the Scandinavian Mountains, the Western Alps and the Pyrenees<br />
were examined. For each population 10 leaves <strong>of</strong> at least 30 specimens, at least 3 m<br />
distant from each other, to avoid sampling the same genets, were collected.<br />
Similar leaves’ characters <strong>of</strong> the two different species were the most and the least<br />
varied. The calculated features were more stable than the measured ones, which<br />
may have resulted from the influence <strong>of</strong> the growth conditions on the size <strong>of</strong> leaves.<br />
For that reason, comparisons among populations were made using calculated traits<br />
only. Several leaf traits <strong>of</strong> S. herbacea were statistically significantly correlated to<br />
longitude.<br />
Among the S. reticulata populations, one <strong>of</strong> the samples from the Pyrenees and one<br />
from the Tatra Mountains were the most different ones. Other samples were more<br />
similar. The samples <strong>of</strong> S. herbacea from Norway and the Pyrenees were similar.<br />
The population from the Western Alps was more distant, whereas the one from the<br />
Tatra Mountains was very different.<br />
The observed differentiation may have been caused by postglacial isolation between<br />
populations. The obtained results may indicate a migration way from the Iberian<br />
Peninsula to Scandinavia. The Tatra populations probably have been isolated for a<br />
longer period.<br />
79
P 30<br />
Cytoplasm and nuclear ribosomal DNA evidence reveal a<br />
differentiated Southern Iberian lineage <strong>of</strong> wild trumpets (Narcissus<br />
sect. Pseudonarcissus)<br />
Isabel Marques 1 , Gonzalo Nieto Feliner 2 , Amélia Martins-Loução 1 & Javier Fuertes<br />
Aguilar 2<br />
1 Jardim Botânico, Universidade de Lisboa, Rua Escola Poltécnica 58, 1200 Lisboa,<br />
Portugal; icmarques@fc.ul.pt & 2 Real Jardín Botánico, CSIC, Plaza de Murillo 2,<br />
28014 Madrid, España<br />
Narcissus section Pseudonarcissus, horticulturally known as trumpet daffodils,<br />
includes 6 to 28 species (depending on authors) endemic to Europe, with its largest<br />
diversity concentrated in the Iberian Peninsula. As part <strong>of</strong> a wider study aiming to<br />
reconstruct the phylogeny <strong>of</strong> Narcissus, we present here the results concerning this<br />
section based on two chloroplasts and one nuclear marker.<br />
Phylogenetic analyses based on parsimony and Bayesian methods, reticulation<br />
networks like TCS, and splits decomposition were used to reconstruct the<br />
relationships among the analysed species. Chromosome numbers and karyological<br />
features were also considered.<br />
Our results reveal two major lineages in maternally inherited phylogenies, one <strong>of</strong><br />
them geographically associated with Southern Iberian Mountains. The nuclear<br />
ribosomal data also indicates isolation <strong>of</strong> Southern Iberian taxa from the remaining<br />
representatives <strong>of</strong> the section although the position <strong>of</strong> one <strong>of</strong> the Southern Iberian<br />
species, N. bujei, switches in the two phylogenies. The possible causes for such<br />
incongruent pattern, probably including reticulation, are discussed since it is not<br />
directly linked to any morphological, ecological or karyological trait.<br />
80
P 31<br />
Mediterranean mountains: plant biodiversity and phylogeographical<br />
hotspots<br />
Katia Diadema 1, 2 & Frédéric Médail 1<br />
1<br />
Institut Méditerranéen d’Ecologie et de Paléoécologie (IMEP, UMR CNRS 6116)<br />
Université Paul Cézanne Aix-Marseille III, Europôle méditerranéen de l’Arbois, B.P.<br />
80, F-13545 Aix-en-Provence cedex 04, France<br />
katia.diadema@univ-cezanne.fr, f.medail@univ-cezanne.fr<br />
2 Conservatoire Botanique National Méditerranéen de Porquerolles, Castel Ste-Claire, rue<br />
Ste-Claire, F-83418 Hyères cedex, France<br />
With ca. 30,000 plants, the Mediterranean Basin constitutes one <strong>of</strong> the world's major<br />
hotspots for plant biodiversity. Within this region, Mediterranean mountains are<br />
particularly interesting due to their high plant diversity and endemism. Diverse<br />
palaeogeographical and historical and episodes, long term human influence and<br />
current geographical and climatic contrasts play a key role in the biogeographical<br />
originality <strong>of</strong> these mountains. Recent phylogeographical studies have indeed<br />
underlined the contrasted role <strong>of</strong> South European mountains during the drastic<br />
climatic cycles <strong>of</strong> the Tertiary and Quaternary. They have both allowed the<br />
persistence or the differentiation <strong>of</strong> several local plant lineages, since mountain<br />
ranges have acted as barrier or refugia.<br />
We examine here the spatial congruence between the distribution <strong>of</strong> refugia and the<br />
location <strong>of</strong> endemic centres, both at the Mediterranean Basin scale and at a finer<br />
scale scale, the Maritime Alps. The objective is to estimate the putative importance <strong>of</strong><br />
Mediterranean mountains for the future <strong>of</strong> plant biodiversity, within the perspective <strong>of</strong><br />
global change.<br />
With a total <strong>of</strong> 33 mountainous refugia <strong>of</strong> the 52 identified in the Mediterranean<br />
Basin, the role played by Mediterranean mountains, including large mountainous<br />
islands, is confirmed both in the northern and the southern part <strong>of</strong> the region. We<br />
found also a strong biogeographical congruence between the identified refugia and<br />
the major biodiversity areas <strong>of</strong> the Mediterranean region: regional hotspots <strong>of</strong> plant<br />
biodiversity are mainly situated on mountains which <strong>of</strong>ten shared level <strong>of</strong> rangerestricted<br />
endemics > 10%. At a finer scale, comparisons between the distribution <strong>of</strong><br />
putative refugia and endemic centres <strong>of</strong> the Maritime Alps, exhibit similar spatial<br />
patterns.<br />
Therefore, Mediterranean mountains constitute significant areas for the local<br />
persistence <strong>of</strong> plants and a reservoir <strong>of</strong> unique genetic diversity favourable to the<br />
evolutionary processes <strong>of</strong> Mediterranean plant species. Thus, these mountains could<br />
play a crucial role in mitigating the putative extinction <strong>of</strong> species linked to climate<br />
change. Our results emphasize the critical importance <strong>of</strong> Mediterranean mountains<br />
for regional planning <strong>of</strong> conservation biogeography <strong>of</strong> this highly threatened<br />
ecoregion.<br />
81
P32<br />
The karyology <strong>of</strong> some high-mountain Euphrasia species<br />
Lenka Mártonfiová 1 & Vlastimil Mikoláš 2<br />
1 Botanical Garden, P. J. Šafárik University, Mánesova 23, SK-043 52 Košice,<br />
Slovakia, lenka.martonfiova@upjs.sk<br />
2 Hanojská 4, SK-04013 Košice, Slovakia, sorbusaria@azet.sk<br />
The genus Euphrasia consists <strong>of</strong> many microspecies in Europe. Rapid evolution <strong>of</strong><br />
the genus Euphrasia subg. Euphrasia is connected with pleistocene and<br />
development <strong>of</strong> many taxa growing in strict ecological conditions. In European alpine<br />
mountains probably autogamous small-flowered taxa evolved as a consequence <strong>of</strong><br />
insufficiency <strong>of</strong> insect pollinators in alpine environment. In Europe and Slovakia two<br />
ploidy levels developed: diploids and tetraploids. Many taxa <strong>of</strong> Euphrasia evolved<br />
probably after hybridization events in connection with climatic oscillations in<br />
pleistocene. High variability <strong>of</strong> tetraploids is probably connected with their hybrid<br />
polytopic origin. In Slovakia only few data are available on the karyology <strong>of</strong> Euphrasia<br />
species. Only E. tatrae Wettst. was studied carefully. This species is diploid one and<br />
it is one <strong>of</strong> 3 diploid species <strong>of</strong> the ser. Latifoliae Pugsley s. Juzepczuk 1955 in<br />
European mountains. Another taxa are represented by E. inopinnata Ehrend. et Vitek<br />
and E. sinuata Vitek et Ehrend. E. exaristata Smejkal was described from Western<br />
Tatra Mts. The morphological analyses and a new chromosomal count (2n = 22) are<br />
in agreement with the hypothesis on its hybrid origin. New counts for E.<strong>of</strong>ficinalis L.<br />
subsp. kerneri (Wettst.) Eb. Fisch. also confirm the hypothesis that E. exaristata<br />
evolved from hybrid <strong>of</strong> this taxon with E. tatrae. As a relatively small-flowered species<br />
E. exaristata evolved populations especially in areas located between E. tatrae and<br />
E.<strong>of</strong>ficinalis subsp. kerneri. As it was observed, incidental hybridization causes the<br />
occurrence <strong>of</strong> occasional back hybrids with both parental species. This phenomen<br />
need another research, especially with the use <strong>of</strong> molecular methods and also<br />
observation <strong>of</strong> insect behavior on flowers <strong>of</strong> Euphrasia species in selected localities.<br />
82
P 33<br />
Historical-geographical background <strong>of</strong> endemism <strong>of</strong> Aconitum in<br />
Central Europe<br />
Józef Mitka<br />
Jagiellonian University, Institute <strong>of</strong> Botany, Botanical Garden, Kopernika 27, 31-501<br />
Kraków, Poland; j.mitka@uj.edu.pl<br />
The Carpathian and Sudetic Mountains are important centers <strong>of</strong> endemism <strong>of</strong> the<br />
genus Aconitum in Central Europe. Among 25 taxa (species and subspecies)<br />
growing in this area 29% are the Western, 25% Eastern/Southern Carpathian, 17%<br />
Carpathian endemics and subendemics; 12% are <strong>of</strong> the Balkan-Alpine-Carpathian<br />
range type. The remaining 16% <strong>of</strong> taxa are the Sudetic-Hercynian and Carpathian-<br />
Sudetic elements (Mitka 2003). One <strong>of</strong> the mechanism <strong>of</strong> endemism is evolutionary<br />
migration or geographical vicarism. An example is A. degenii. It is a montane species<br />
occurring in two geographic centers, circumscribed in the rank <strong>of</strong> subspecies. Typical<br />
subsp. degenii occurs in the Southern/Eastern Carpathians, and subsp. paniculatum<br />
in the Alps and north-western part <strong>of</strong> the Balcans (Slovenia, Bosnia and<br />
Hercegovina). The other important mechanism contributing to high endemism <strong>of</strong><br />
Aconitum is secondary contact. A. firmum subsp. moravicum, the Western-<br />
Carpathian endemic, probably originated in effect <strong>of</strong> the Carpathian A. firmum and<br />
Sudetic A. plicatum hybridization. Both are high-mountain species. This putative<br />
hybrid might have originated in an area adjoing to the Moravian Gate during one <strong>of</strong><br />
the Quaternary pleniglacials when alpine vegetation descended to the foothills and<br />
came to the contact. The most intriguing among Aconitum in Central Europe is A.<br />
firmum subsp. maninese. It occurs only in two localities: in the Strážovské vrchy Mts<br />
in Slovakia and the Tatras. Rather unusual trait in the sectio Aconitum, i.e. glandular<br />
hair on indumentum, closes it to the Balcanic A. divergens (=A. pentheri) and<br />
endemic to the Maritime Alps A. burnatii. Further molecular DNA and cytogenetic<br />
studies are needed to circumscribe A. maninese in the proper taxonomic and<br />
evolutionary context.<br />
83
P 34<br />
Phylogeography and evolution <strong>of</strong> Gentiana verna s.l.<br />
(Gentianaceae)<br />
Karin Moosbrugger, Hans-Peter Comes & Andreas Tribsch<br />
AG Ecology and Diversity <strong>of</strong> <strong>Plant</strong>s, University <strong>of</strong> Salzburg, Hellbrunnerstraße 34,<br />
5020 Salzburg, Austria; Karin.Moosbrugger@sbg.ac.at<br />
The Spring Gentian (Gentiana verna) is a perennial herb frequently occurring in<br />
montane and alpine grasslands throughout the European mountain ranges.<br />
Geographically disjunct are populations located in Ireland, Scotland and in the<br />
Northern Ural region. From Turkey eastwards G. verna is replaced by Gentiana<br />
angulosa in the Caucausus and by Gentiana uniflora from the Tienshan over the Altai<br />
to the Baikal region.<br />
The present study aims to elucidate the evolutionary history and phylogeographical<br />
patterns <strong>of</strong> Gentiana verna by applying AFLP fingerprinting (Amplified fragment<br />
length polymorphism). Of special interest is the biogeographical origin <strong>of</strong> the isolated<br />
British and Ural populations and the degree <strong>of</strong> their genetic divergence from<br />
populations <strong>of</strong> the Central Europe. The sampling covers the entire distributional<br />
range <strong>of</strong> the species group (including Asian populations <strong>of</strong> G. angulosa and G.<br />
uniflora). A number <strong>of</strong> 380 samples originating from 54 populations are examined.<br />
As hybridization and introgression might blur phylogeographic patterns, further<br />
investigations are addressing potential gene flow between G. verna and the closely<br />
related and sympatrically distributed taxa G. brachyphylla and G. orbicularis. Being<br />
morphologically similar these species differ regarding their edaphic requirements.<br />
G. orbicularis requires calcareous substrate whereas G. brachyphylla is confined to<br />
siliceous soils.<br />
At three mixed stands within the Austrian Alps (Hohe Tauern, Stubaier Alpen) leaf<br />
material <strong>of</strong> 10 individuals per species was collected. First AFLP analyses proved the<br />
presence <strong>of</strong> hybrid individuals (G. verna x G. brachyphylla, G. verna x G. orbicularis)<br />
evidencing the potential <strong>of</strong> gene flow among these species.<br />
84
P 35<br />
Studies <strong>of</strong> seed morphological characters in 17 Iranian Euphorbia<br />
(Euphorbiaceae) species<br />
Mitra Noori 1 , Abdolkarim Chehregany 2 & Mahdi Kaveh 3<br />
1 University <strong>of</strong> Arak, Faculty <strong>of</strong> Science, Department <strong>of</strong> Biology, Arak, Iran<br />
2 Bu-Ali sina University, Department <strong>of</strong> Biology, Hamadan, Iran<br />
3 Islamic Azad University, Brojerd Unit, Biology Department, Brojerd, Iran<br />
Seed morphology is characters sets used to assess the relationships among Iranian<br />
species <strong>of</strong> the genus Euphorbia. Euphorbia is one <strong>of</strong> the largest genera in<br />
Euphorbiaceae with more than 2000 species in the world and about 100 species in<br />
Iran. Some macro and micro-morphological characters <strong>of</strong> seeds such as existing and<br />
durability <strong>of</strong> caroncule, seed size, shape, colour, chemical compounds and dorsal<br />
and ventral surface decoration seed have important role in seed dispersion and can<br />
be useful for taxonomists. 35 seed quantitative and qualitative characters <strong>of</strong> 17<br />
collected Euphorbia species from different part <strong>of</strong> Markazi Province (central <strong>of</strong> Iran)<br />
were studied. Voucher specimens <strong>of</strong> each sample were prepared for references as<br />
herbarium vouchers. The morphology <strong>of</strong> the seeds was studied using a zoom<br />
binocular light microscope and scanning electron microscopy. Photomicrographs<br />
were taken under different magnification. A number <strong>of</strong> macroscopic characters were<br />
also scored. The key summarized these data. Macro- and micro-morphological<br />
studies <strong>of</strong> the Iranian Euphorbia species seeds showed some characters may<br />
support the identification <strong>of</strong> the species and their varieties.<br />
85
P 36<br />
Morphological and karyological variation <strong>of</strong> the Cyanus triumfettii<br />
group (Asteraceae) in the Western Carpathians<br />
Katarína Olšavská 1,2 , Marián Perný 1,2 & Iva Hodálová 1<br />
1 Institute <strong>of</strong> Botany, Slovak Academy <strong>of</strong> Sciences, Dúbravská cesta 14, SK-845 23<br />
Bratislava, Slovak Republic; katarina.olsavska@savba.sk, marian.perny@savba.sk &<br />
iva.hodalova@savba.sk<br />
2 Faculty <strong>of</strong> Natural Sciences, Matej Bel University, Tajovského 40, SK-974 01,<br />
Banská Bystrica, Slovak Republic<br />
The Cyanus triumfettii group is distributed from Syria across Europe to Morocco and,<br />
according to various taxonomic concepts, comprises from three to twelve species<br />
along with other infraspecific taxa recognized within them. Taxonomy <strong>of</strong> this group<br />
remains unsettled due to its pronounced morphological variation including<br />
morphologically intermediate populations and a considerable intra-population<br />
variability. Four taxa, classified as species, subspecies or varieties, are reported from<br />
the Western Carpathians: C. triumfettii subsp. axillaris, C. t. subsp. dominii, C. t.<br />
subsp. strictus and C. t. subsp. triumfettii. To identify the taxonomic position <strong>of</strong> the<br />
Western Carpathian populations from the C. triumfettii group, karyological and<br />
morphological variation <strong>of</strong> 47 populations from this area was studied. Analysed<br />
material was completed with populations from the type localities <strong>of</strong> all abovementioned<br />
subspecies.<br />
Chromosome counting and flow cytometric analyses confirmed diploid level for all<br />
analysed populations; however, some differences in nuclear DNA content were<br />
detected. Multivariate morphometric analyses revealed that C. triumfettii subsp.<br />
triumfettii does not occur in the Western Carpathians and showed complex<br />
morphological variation <strong>of</strong> C. triumfettii subsp. axillaris, C. t. subsp. dominii and C. t.<br />
subsp. strictus in this region. Additional data will be gathered to classify various<br />
morphotypes within the C. triumfettii group distinguished by presented morphometric<br />
analyses; therefore a need for further taxonomic study is emphasized.<br />
86
P 37<br />
Morphological traits in Dianthus gelidus from the Romanian<br />
Carpathians – comparison with D. glacialis from the Tatry<br />
Mountains<br />
Marilena Onete 1 , Virgil Iordache 2 , Rodica Blându 1 , Anca Păunescu 1<br />
1 Institute <strong>of</strong> Biology, Romanian Academy, Spl. Independentei 296, 060031, Sector 6,<br />
Bucharest, Romania; m_onete@yahoo.com<br />
2 Department <strong>of</strong> Systems Ecology, University <strong>of</strong> Bucharest, Spl Independentei 91-95<br />
050089, Sector 5, Bucharest, Romania; virgil.iordache@g.unibuc.ro<br />
Analyzing literature and herbaria focused on distribution and taxonomy <strong>of</strong> Dianthus<br />
gelidus and D. glacialis in the Carpathians, we have found uncertainties regarding<br />
distributional and taxonomical data. Following field sampling, we realized<br />
morphological measurement on D. glacialis from the Tatry Mountains (Poland and<br />
Slovakia), D. gelidus from the Bucegi Massif and D. callizonus from the Piatra<br />
Craiului Massif as already known taxa. Differential characters (quantitative and<br />
qualitative) among species were analysed using ANOVA. The statistical analysis<br />
show that there are high meaningful differences between the Tatry and Bucegi<br />
regarding length and width <strong>of</strong> calyx, internal and external epicalyx-scales, length and<br />
width <strong>of</strong> seeds, derma <strong>of</strong> leaves, etc. There is also high geographical difference <strong>of</strong><br />
the three species, which imply that the taxon which lives in the Bucegi is different<br />
from the taxon living in the Tatry and both from taxon living in the Piatra Craiului.<br />
Stems length, internodes’ number, leaves length and width; all depend on the<br />
integrative plant associations and altitude.<br />
The morphological measurements <strong>of</strong> Bucegi and Tatry taxa, reveals that not all the<br />
studied parameters overlap (as is stipulated in the literature), demonstrating high<br />
differences between D. glacialis and D. gelidus belonging to populations from the<br />
Tatry and Bucegi, which imply that in the Tatry and Bucegi there are two separated<br />
species, at least in studied populations.<br />
87
P 38<br />
Evolutionary relations <strong>of</strong> Linum species in the flora <strong>of</strong> Ukraine<br />
Olga Optasyuk<br />
M.G. Kholodny Institute <strong>of</strong> Botany National Academy <strong>of</strong> Sciences <strong>of</strong> Ukraine,<br />
2 Tereshchenkivska St., Kyiv, Ukraine; linum@ukr.net<br />
Genus Linum L. <strong>of</strong> the flora <strong>of</strong> Ukraine amounts 23 species which belong to 8<br />
sections (Optasyuk, 2007). Pecularities <strong>of</strong> historical development <strong>of</strong> the genus<br />
Linum, evolutional and phylogenetic relations and ways <strong>of</strong> speciation are discussed,<br />
based on the original results biomorphological, macro- and micromorphological<br />
research, the geographical and ecological-coenotic analysis, summary <strong>of</strong> molecular<br />
and cytogenetic data. Ancestral form <strong>of</strong> Protolinum is at the base <strong>of</strong> evolutional<br />
scheme <strong>of</strong> Linum, closely related with sections <strong>of</strong> Adenolinum, Linum and Syllinum.<br />
Monotypic section Cathartolinum is the evolutionally youngest section. Sections<br />
Linopsis, Dichrolinum, Tubilinum and Dasylinum occupy intermediate isolated<br />
position. Specialization within the genus occurred in different ways: polyploidy played<br />
a significant role in the evolution <strong>of</strong> groups with different chromosome numbers, and<br />
species isolation within groups occured due to chromosomes reconstruction. In the<br />
genus 3 parallel evolutional branches are clearly оbserved: blue-flowered, yellowflowered<br />
and white-flowered. Section Adenolinum (n=9) is basal for blue-flowered<br />
linums (sect. Adenolinum, Linum, Dasylinum, Dichrolinum). Further evolution <strong>of</strong> the<br />
section goes in two directions: evolution <strong>of</strong> homostyled forms (subsect. Linum) from<br />
heterostyled (sect. Adenolinum or subsect. Nervosa) and doubling <strong>of</strong> chromosomes<br />
number. Further evolutional changes in the genus probably come through polyploidy<br />
and aneuploidy. Section Syllinum is basal for yellow-flowered linums (sect. Syllinum,<br />
Linopsis, Tubilinum). Evolutional processes within this group went in two directions:<br />
formation <strong>of</strong> Suffruticulae branch (edaphic specialized suffruticulus) and Flava<br />
branch (herbaceous policarpics). Polyploidy in L. flavum indicates intensive<br />
speciation processes within the series, confirmed by the hybridizations between<br />
some species <strong>of</strong> series Suffruticulae. In general, our results correlate with molecular<br />
data (McDill, 2004, 2005).<br />
88
P 39<br />
Origin and evolution <strong>of</strong> agamospermic Potentilla species<br />
(Rosaceae) in Central Europe<br />
Juraj Paule 1 & Christoph Dobeš 2<br />
1 University <strong>of</strong> Heidelberg, Heidelberg Institute <strong>of</strong> <strong>Plant</strong> Science, Department <strong>of</strong> <strong>Plant</strong><br />
Systematics and Biodiversity, Im Neuenheimer Feld 345, D-69120 Heidelberg,<br />
Germany; jpaule@hip.uni-heidelberg.de<br />
2 Department <strong>of</strong> Pharmacognosy, University <strong>of</strong> Vienna, Althanstrasse 14, A-1090<br />
Wien, Austria; christoph.dobes@univie.ac.at<br />
The aggregates <strong>of</strong> Potentilla verna and P. argentea are both agamospermic species<br />
complexes <strong>of</strong> overlapping geographic distribution, which integrate into each other by<br />
extensive hybridisation. Hybrid populations are found in a multitude <strong>of</strong> isolated places<br />
throughout Europe and are currently treated as species within the Potentilla collina<br />
agg (Collinae sensu Th. Wolf). Chloroplast DNA sequence polymorphisms within the<br />
putative paternal aggregates but also within other related taxa were analysed in order<br />
to identify those parental evolutionary lineages which gave rise to P. collina forms. In<br />
a first phase <strong>of</strong> the project, we have focused on the origin <strong>of</strong> Potentilla alpicola De la<br />
Soie, a member <strong>of</strong> the Collinae, in Southern Tyrol and adjacent areas. In this study<br />
on hybrid speciation we assessed the question whether P. alpicola populations are <strong>of</strong><br />
single or multiple origin and whether they have been established by a uniform<br />
evolutionary process or if a more complex scenario <strong>of</strong> evolution applies. For that<br />
purpose cpDNA, morphological and cytological data were combined.<br />
89
P 40<br />
Karyological variation <strong>of</strong> the Phleum pratense group (Poaceae) in<br />
Europe<br />
Marián Perný 1,2 , Lenka Mártonfiová 3 & Pavol Mártonfi 4<br />
1 Institute <strong>of</strong> Botany, Slovak Academy <strong>of</strong> Sciences, Dúbravská cesta 14, SK-845 23<br />
Bratislava, Slovak Republic; marian.perny@savba.sk<br />
2 Faculty <strong>of</strong> Natural Sciences, Matej Bel University, Tajovského 40, SK-974 01,<br />
Banská Bystrica, Slovak Republic<br />
3 Botanical Garden &<br />
4 Faculty <strong>of</strong> Science, Institute <strong>of</strong> Biology and Ecology,<br />
Department <strong>of</strong> Botany, P. J. Šafárik University, Mánesova 23, SK-041 54 Košice,<br />
Slovak Republic; lenka.martonfiova@upjs.sk & pavol.martonfi@upjs.sk<br />
Flow cytometric analyses and chromosome counting revealed complex karyological<br />
variation within the Phleum pratense group in Europe. Analyses <strong>of</strong> 157 natural<br />
populations from the Apennine Peninsula, Alps, Carpathians with adjacent part <strong>of</strong><br />
Pannonia, and Scandinavia detected four ploidy levels within the group. Hexaploid<br />
cytotype (2n = 6x = 42) is the most common, occurring in 152 populations. It <strong>of</strong>ten cooccurs<br />
with diploids (2n = 2x = 14) in the Carpathians, Pannonia and Sweden.<br />
Detailed sampling in the Carpathians showed that most mixed populations occur in<br />
the Western Carpathians (26), while in the Eastern Carpathians mixed populations<br />
are much rarer, with three populations in Ukraine and one in Romania. In the<br />
Southern Carpathians, only hexaploids were found. Rare triploid plant (2n = 3x = 21)<br />
was found in a mixed population with hexaploids and diploids in Switzerland.<br />
Occurrence <strong>of</strong> tetraploid P. pratense (2n = 4x = 28) was confirmed on three localities<br />
in the Apennine Peninsula. Conventional taxonomic concept <strong>of</strong> the two species,<br />
diploid P. bertolonii and hexaploid P. pratense, is followed in spite <strong>of</strong> their sympatric<br />
occurrence. Triploids and tetraploids are provisionally classified as P. pratense.<br />
Distribution maps based on chromosome number data from previous studies and on<br />
ploidy level estimates are presented. The pattern <strong>of</strong> distribution <strong>of</strong> the cytotypes and<br />
taxa in Europe is discussed.<br />
90
P 41<br />
Modeling reticulate evolution<br />
Anna Petri 1 , Martin Lott 2 , Vincent Moulton 2 , Katharina Huber 2 , Bengt Oxelman 1<br />
1 Dept. <strong>of</strong> <strong>Plant</strong> and Environmental Sciences, Göteborg University, Göteborg,<br />
Sweden; anna.petri@dpes.gu.se<br />
2 School <strong>of</strong> Computing Sciences, University <strong>of</strong> East Anglia, Norwich, United Kingdom<br />
Allopolyploidy is a well known speciation mechanism in plants, but up until now there<br />
has been no formal way to visualize the formation <strong>of</strong> these. We are developing a<br />
method in which a number <strong>of</strong> multilabelled single-gene phylogenies are transformed<br />
into a single multilabelled genome tree, which is subsequently transformed into a<br />
species network. It works by a greedy consensus algorithm so that it can deal with<br />
missing data and unresolved trees, and it discriminates single-gene duplications from<br />
whole-genome duplications. The resulting network aids in formulating an hypothesis<br />
concerning the evolutionary relationships <strong>of</strong> hybrids and their parental taxa. We have<br />
implemented our new method within the open-source PADRE s<strong>of</strong>tware tool, a new<br />
version <strong>of</strong> which will be released in the near future.<br />
91
P 42<br />
Chromosome studies on the Poaceae <strong>of</strong> Russia: present and future<br />
Nina S. Probatova<br />
Institute <strong>of</strong> Biology & Soil Science, Far East Branch <strong>of</strong> the Russian Academy <strong>of</strong><br />
Sciences, 159 Stoletia Prospect, 690022, Vladivostok, Russia;<br />
probatova@ibss.dvo.ru<br />
Chromosome number (CN) is particularly important for the taxonomy <strong>of</strong> Poaceae.<br />
The CNs <strong>of</strong> Poaceae are the most studied not only in Russia but also in the world.<br />
They have been the subject <strong>of</strong> our study since 1968, in collaboration with an<br />
outstanding Russian caryo-geographer, A.P. Sokolovskaya, and these studies<br />
continue to the present day. We focused on the caryosystematics and the evolution<br />
<strong>of</strong> the largest Poaceae genus Poa, as well as Glyceria, Agrostis, in the Russian Far<br />
East, and some <strong>of</strong> the Poaceae groups in the flora <strong>of</strong> the former USSR including:<br />
Calamagrostis, Alopecurus, Milium, Holcus, Colpodium s. ampl., Trisetum, Koeleria,<br />
Festuca, Arctopoa, etc. In total, our studies on CN involve representatives from more<br />
than 130 Poaceae genera. During our work, we have produced the first data on the<br />
CN <strong>of</strong> a unique endemic grass genus in Russia – Limnas, discovered the second<br />
known species with the minimal CN <strong>of</strong> 2n = 4 – Colpodium versicolor (in Caucasus),<br />
revealed the minimal CNs for Catabrosa, Catabrosella (2n = 10), Trisetum (2n = 12),<br />
and discovered the highest CN – in Milium (2n = 42). A rare occurrence for a<br />
Poaceae species, polybasic status within one species, was confirmed in Milium<br />
vernale s.l. (2n = 8, 10, 14, 18 (x = 4, 5, 7, 9). Additionally, the main trends <strong>of</strong> CN<br />
evolution within two large groups – Aveneae and Poeae -- were delineated. Our<br />
research group is currently working on a project entitled “Chromosome numbers <strong>of</strong><br />
Poaceae in Russia and adjacent territories: diversity, caryotaxonomy,<br />
phytogeography, evolution”, with the aim <strong>of</strong> making a complete listing <strong>of</strong> Poaceae CN<br />
and analyzing the accumulated data obtained from 40 years <strong>of</strong> study. As a part <strong>of</strong><br />
this study, a list <strong>of</strong> CNs in Poaceae from the Russian Far East is published. This work<br />
is financed by the Russian Fund for Basic Research (RFBR), project 07-04-00610<br />
92
P 43<br />
Biosystematic study on Oxytropis sect. Mesogaea in Iran<br />
Massoud Ranjbar, Soheila Bayat & Roya Karamian<br />
Department <strong>of</strong> Biology, Faculty <strong>of</strong> Science, Bu-Ali Sina University, P.O.Box<br />
65175/4161, Hamedan, Iran; ranjbar@basu.ac.ir<br />
Oxytropis DC. is a genus belonging to the tribe Astragaleae <strong>of</strong> Papilionoideae in the<br />
Fabaceae, comprises about 300 species occurring in cold mountainous regions <strong>of</strong><br />
Europe, Asia, and North America, and is most numerous in Central Asia. Oxytropis<br />
sect. Mesogaea one <strong>of</strong> the richest in species within the subgenus Oxytropis, includes<br />
19 species within Flora Iranica. It is one <strong>of</strong> the difficult sections with respect to<br />
taxonomy, and probably by having <strong>of</strong>ten blue flower, basfixed hairs has given rise to<br />
the sections belong to Astragalus subgen. Hypoglottis. In this research, the main<br />
focus was on systematic investigation using morphometry, pollen micromorphology<br />
and seed morphology. Morphometric study on the species was carried out using<br />
more than 50 qualitative and quantitative characters. Pollen morpholgy was carried<br />
out by light microscopy after acetolysis procedure. For each taxon, 25 pollen grains<br />
were measured for polar and equatorial diameters, thickness <strong>of</strong> the wall at the poles<br />
and equator, length and width <strong>of</strong> colpus, mesocolpium, apocolpium and shape index.<br />
All <strong>of</strong> data were analysed by MVSP s<strong>of</strong>tware and the relationships between species<br />
were studied. Also seed morphology <strong>of</strong> the species was studied by scanning electron<br />
microscopy. Based on qualitative characters <strong>of</strong> seed shape and testa ornamentation,<br />
three types are recognized.<br />
93
P 44<br />
Phylogeny <strong>of</strong> the genus Lasiocephalus (Asteraceae) – colonization<br />
<strong>of</strong> the equatorial páramo<br />
Eva Rejzková 1 , Tomáš Fér 1 , Petr Sklenář 1 , Jan Suda 1,2 , Karol Marhold 1,3<br />
1 Department <strong>of</strong> Botany, Charles University, Benátská 2, CZ-128 01 Praha, Czech<br />
Republic; jezanek@centrum.cz, tomas.fer@centrum.cz, petr@natur.cuni.cz,<br />
suda@natur.cuni.cz<br />
2 Institute <strong>of</strong> Botany,Academy <strong>of</strong> Sciences <strong>of</strong> the Czech Republic, Průhonice 1,<br />
CZ-252 43 Praha, Czech Republic<br />
3 Institute <strong>of</strong> Botany, Slovak Academy <strong>of</strong> Sciences, Dúbravská cesta 14, SK-845 23<br />
Bratislava, Slovak Republic; karol.marhold@savba.sk<br />
The neotropical genus Lasiocephalus Willd. ex Schltdl. (Asteraceae) consists <strong>of</strong><br />
approx. 30 species inhabiting a range <strong>of</strong> vegetation types, from montane forests to<br />
the high páramo, in the Andes (from Venezuela to Bolivia). Two main growth forms<br />
can be recognized in the genus, i. e., the broad-leaved suffrutescent climbers <strong>of</strong><br />
montane forests and the narrow-leaved ascending subshrubs <strong>of</strong> the páramo. These<br />
growth forms plausibly reflect an adaptive variation during the colonization <strong>of</strong> the<br />
páramo habitats. Our study aims at: (i) the inference <strong>of</strong> the evolutionary history <strong>of</strong> the<br />
genus, (ii) the assessment <strong>of</strong> relationships among the species, (iii) the reconstruction<br />
<strong>of</strong> the mode <strong>of</strong> colonization <strong>of</strong> the páramo habitats, and (iv) the interpretation <strong>of</strong> the<br />
ecological traits and geographical distribution <strong>of</strong> the species in the context <strong>of</strong> climatic<br />
chances during the Pleistocene. To elucidate these tasks, we employ molecular<br />
approaches (i.e., sequencing <strong>of</strong> chloroplast and nuclear DNA markers and AFLP)<br />
and DNA flow cytometry.<br />
Preliminary results based on the analyses <strong>of</strong> eight species collected in Ecuador and<br />
Venezuela showed only minor interspecific differences in three chloroplast<br />
non-coding DNA regions. ITS region provided more variable characters, suggesting a<br />
higher value <strong>of</strong> this marker for resolving phylogenetic relationships. Genome<br />
duplication may play an important role in the evolution <strong>of</strong> the genus as indicated by<br />
flow cytometric data. Ploidy heterogeneity (diploid and triploid cytotypes) was found<br />
in two species (L. ovatus and L. lingulatus). While most species showed a stability in<br />
nuclear DNA content, two different genome size variants were revealed in L. patens<br />
from Ecuador.<br />
94
P 45<br />
Phytogeographical relationships <strong>of</strong> Mediterranean mountains<br />
Ian Richardson<br />
Department <strong>of</strong> Botany, University <strong>of</strong> Reading, UK.<br />
A chorological analysis <strong>of</strong> montane species, reflecting geomorphological and<br />
climatological history, as well as suggesting areas, both geographical and taxonomic,<br />
where biosystematic studies might be rewarding.<br />
95
P 46<br />
Impact <strong>of</strong> exotic species in native mountain communities <strong>of</strong> Cape<br />
Verde Islands (Macaronesian region)<br />
Maria Romeiras 1,2 , Violante Medeiros 2 , Cláudia Fernandes 1 & Cristina Duarte 1<br />
1 Instituto de Investigação Científica Tropical, Travessa Conde da Ribeira 9, 1300-142<br />
Lisboa, Portugal; 2 Instituto de Ciência Aplicada e Tecnologia, FCUL, Campo Grande,<br />
1749-016 Lisboa, Portugal; mariaromeiras@net.sapo.pt,<br />
violante_medeiros@yahoo.com, claudiaf_cv@hotmail.com & mcduarte@iict.pt<br />
Exotic species, introduced deliberately or accidentally by man, are one <strong>of</strong> the main<br />
threats to the preservation <strong>of</strong> the islands' biodiversity. In Cape Verde Islands<br />
(Macaronesian Region: North-eastern Atlantic Ocean) the situation has deteriorated<br />
rapidly in the past few years and the ecological degradation <strong>of</strong> mountain regions,<br />
where most <strong>of</strong> the endemic species occur, is <strong>of</strong> special concern. Research is needed<br />
to understand their ecology and impacts, and develop and test methods to control the<br />
invasive plants. To address this predominant problem, the overall strategy may<br />
comprise two components: (1) dealing with exotic species already present in the<br />
islands, and (2) prevention <strong>of</strong> further plant introductions. For this purpose, a<br />
taxonomical review <strong>of</strong> naturalized nonindigenous species is performed. For the Cape<br />
Verde mountain islands (Santo Antão, São Vicente, São Nicolau, Santiago, Fogo and<br />
Brava Islands) provisional numbers suggest that, from a total <strong>of</strong> 93 angiosperm<br />
families, 66 have exotic representatives, namely: 58 Dicotyledons (306 species) and<br />
8 Monocotyledons (83 species). The largest families, with more than 15 exotic<br />
species, are Asteraceae, Leguminosae, Solanaceae, Euphorbiaceae,<br />
Amaranthaceae and Poaceae. The genera contributing with more than 5 exotic taxa<br />
are Amaranthus, Ipomoea, Solanum, Chamaesyce, Indig<strong>of</strong>era (Dicotyledons) and<br />
Cyperus, Bromus, Eragrostis, Digitaria (Monocotyledons). Lantana camara and<br />
Furcraea foetida are amongst the strongest present day invaders <strong>of</strong> some mountain<br />
Cape Verde habitats. The results will contribute to a first insight <strong>of</strong> the invasion<br />
phenomena in native mountain communities <strong>of</strong> Cape Verde Islands and aim to<br />
contribute to conservation management plans.<br />
96
P 47<br />
Systematics <strong>of</strong> Lachemilla (Rosaceae) in the High Andes<br />
Katya Romoleroux<br />
Pontificia Universidad Católica del Ecuador, Escuela de Ciencias Biológicas,<br />
Herbario QCA, 12 de Octubre y Roca, 172184, Quito, Ecuador;<br />
kromoleroux@puce.edu.ec<br />
Lachemilla (Rosaceae) is a group <strong>of</strong> approximately 80 morphologically variable herbs<br />
and shrubs. They are distributed between 2200 and 5000 m altitude, in the western<br />
mountains <strong>of</strong> the Neotropics from Southern Mexico to Northern Chile and Argentina,<br />
and one species is found in the Dominican Republic. About 60% <strong>of</strong> species are found<br />
in the Northern Andes <strong>of</strong> South America from Venezuela to Bolivia, above 3000 m,<br />
which suggests that the elevation <strong>of</strong> the Andes was important for the evolution and<br />
diversification <strong>of</strong> this taxa.<br />
In Ecuador, 25 species <strong>of</strong> Lachemilla have been recorded, four are endemics and<br />
one is a new species. These species are distributed between 3000 and 5000 m. Most<br />
<strong>of</strong> the species are found in páramos, especially in bunch grass páramo where 15<br />
species have been recorded. Other species occur in cushion and desert páramo, and<br />
some are confined to wet páramo; few species are growing in forested regions. Some<br />
<strong>of</strong> the species considered more primitive occur mainly in desert páramo, while the<br />
most specialized species are usually found in wet páramo and swamps.<br />
Lachemilla has traditionally subdivided into 6 sections or series based on their growth<br />
form, leaf characteristics and inflorescence structure. Together with other botanists<br />
we have begin molecular studies based on the analysis <strong>of</strong> chloroplast and nuclear<br />
regions to test the traditional classifications and subdivisions. The preliminary results<br />
we have obtained partly coincide with the morphological data and proposed<br />
subdivisions.<br />
Lachemilla was first described as a section <strong>of</strong> Alchemilla, later it was considered as a<br />
different genus based mainly on the geographical distribution <strong>of</strong> the genera, and the<br />
number and position <strong>of</strong> stamens. Nevertheless, our first molecular phylogenetic<br />
studies including species <strong>of</strong> Lachemilla, Alchemilla and Aphanes suggest that these<br />
three taxa are very close and could be treated as one genus in the future.<br />
97
P 48<br />
Reconstructing the history <strong>of</strong> Campanulaceae s. str. with a<br />
Bayesian approach to molecular dating and dispersal-vicariance<br />
analysis<br />
Cristina Roquet 1 , Isabel Sanmartín ,2 , Niklas Wikström ,3 , Llorenç Sáez ,4 , Núria<br />
García-Jacas ,1 , Juan José Aldasoro. 2<br />
1 Institut Botànic de Barcelona (CSIC-ICUB), Passeig del migdia s/n, E-08038<br />
Barcelona, Spain; cristina.roquet@gmail.com; 2 Real Jardín Botánico de Madrid,<br />
Plaza de Murillo 2, E-28014 Madrid, Spain; 3 Evolutionsbiologiskt centrum, University<br />
<strong>of</strong> Uppsala, Norbyvägen 18D, SE-752 36 Uppsala, Sweden; & 4 Unitat de Botànica,<br />
Facultat de Ciències, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain.<br />
Recent phylogenetic studies have shown that Campanula is not monophyletic, and<br />
that many satellite genera are nested within it. In this study, we attempted to<br />
reconstruct the past in terms <strong>of</strong> ancestral areas and divergence episodes <strong>of</strong> these<br />
genera, in order to increase the understanding <strong>of</strong> the evolution <strong>of</strong> this group <strong>of</strong> plants.<br />
We explored the spatial and temporal evolution <strong>of</strong> the Campanulaceae s. str., and <strong>of</strong><br />
the Campanula alliance in particular, by applying a Bayesian approach to molecular<br />
dating and dispersal-vicariance analysis that takes into account phylogenetic<br />
uncertainty. To better resolve relationships among major groups (Wahlenbergieae-<br />
Campanuleae) with respect to Campanula, we have sequenced the rbcL-conserved<br />
region including taxa <strong>of</strong> some major lineages within Platycodoneae and<br />
Wahlenbergieae. Dating and biogeographic analyses were applied to the new rbcL<br />
data and to the trnL-F data obtained in a previous study. The results obtained<br />
suggest that Western Asia and Eastern Mediterranean seem to have played an<br />
important role as centers <strong>of</strong> migration and diversification <strong>of</strong> the Campanula core. The<br />
biogeographical history <strong>of</strong> this genus seems to be highly complex. Rates <strong>of</strong> species<br />
diversification <strong>of</strong> Campanula seem to have increased during the Messinian period.<br />
Strong selective pressures from the climate changes and the expansion <strong>of</strong><br />
mountainous regions during this period are suggested to explain the fact that many<br />
species <strong>of</strong> Campanula are adapted to drought, cold or disturbed environments.<br />
98
P 49<br />
Genetic variation in natural populations <strong>of</strong> Arabidopsis halleri<br />
(Brassicaceae) in Carpathians, Sudetes and upland regions <strong>of</strong><br />
southern Poland<br />
Paweł Wąsowicz 1 , Alicja Kostecka 2,3 , Pierre Saumitou-Laprade 3 , Krystyna<br />
Grodzińska 2 & Adam Rostański 1<br />
1 Department <strong>of</strong> <strong>Plant</strong> Systematics, Faculty <strong>of</strong> Biology and Evironmental Protection,<br />
University <strong>of</strong> Silesia, Jagiellońska 28, 40-032 Katowice, Poland,<br />
pawasowicz@gmail.com; 2 Department <strong>of</strong> <strong>Plant</strong> Ecology, W. Szafer Institute <strong>of</strong><br />
Botany, Polish Academy <strong>of</strong> Sciences, Lubicz 46, 31-512 Kraków, Poland;<br />
3 Laboratoire de Génétique et Evolution des Populationes Végétales, UMR CNRS<br />
8016, Université des Sciences et Technologies de Lille, Bâtiment SN2, F-59655<br />
Villeneuve d’Ascq Cedex, France<br />
Arabidopsis halleri is a central European, mountain species from Brassicaceae<br />
family. It possesses interesting and rare abilities to grow in environment highly<br />
polluted with heavy metals. As A. halleri is closely related to A. thaliana it is<br />
considered as emerging model species in research on tolerance and accumulation <strong>of</strong><br />
heavy metals in higher plants. In southern regions <strong>of</strong> Poland A. halleri occurs in wide<br />
variety <strong>of</strong> habitats from mountain meadows and rocky slopes in the Tatra Mts. and<br />
Sudetes to highly polluted areas surrounding smelters and mines in Silesia. The area<br />
is particularly important in terms <strong>of</strong> research activities as here metallicolous (M) and<br />
non-metallicolous (NM) populations <strong>of</strong> A. halleri occur within relatively short<br />
distances. We undertook research on genetic variation in natural populations <strong>of</strong> A.<br />
halleri from this interesting area in order to understand more accurately general<br />
pattern <strong>of</strong> genetic variation observed in other parts <strong>of</strong> Europe. Research was carried<br />
out on 24 populations located in the Tatra Mts., Sudetes as well as in upland regions<br />
<strong>of</strong> southern Poland. To accomplish our research we employed chloroplast DNA<br />
(cpDNA) PCR-RFLP analysis (Restriction Fragment Length Polymorphism) and<br />
SNaPshot (Single Nucleotide Primer Extension Assay). Due to nonrecombinating<br />
nature <strong>of</strong> cpDNA genome, alleles observed in all analysed loci were combined into<br />
chlorotypes and analysed. Data obtained form our research allowed us to determine<br />
genetic structure <strong>of</strong> investigated populations and to establish the pattern <strong>of</strong><br />
geographic distribution <strong>of</strong> chlorotypes throughout the investigated area. We proposed<br />
hypotheses about migration routes and evolution <strong>of</strong> A.halleri on investigated area.<br />
99
P 50<br />
Essential oil studies <strong>of</strong> Artemisia species in Azarbaijan-e-Gharbi,<br />
Iran<br />
Kazem Saedi 1 and Adel Jalili 2<br />
1 Scientific board member in Agriculture and Natural Resources Research Center <strong>of</strong><br />
Kurdistan; kazemsaedi@yahoo.com<br />
2 Scientific board member <strong>of</strong> Research Institute <strong>of</strong> Forests and Rangelands<br />
Considering Artemisia-Astragalus as the largest community in Iran, currently, basic<br />
studies are conducting on Artemisia spp. properties. Ecological-systematical aspects<br />
<strong>of</strong> essential oil studies <strong>of</strong> eight populations (six species) <strong>of</strong> the genus were dealt with<br />
in Azarbaijan-e-Gharbi. In this study, generative browses containing flowers <strong>of</strong><br />
different species/populations were gathered in the same phonological stage. After<br />
preparing dry matter <strong>of</strong> the browses in open air, water distillation applied for obtaining<br />
essential oils used for investigating constituents by GC and GC/MS. To conduct a<br />
comparison between different studied taxa, a cluster analysis was used in Minitab<br />
11.12. The results showed that there were two different chemotypes <strong>of</strong> A. fragrans<br />
and the oil was free <strong>of</strong> common detected toxic components in A. absinthium.<br />
Resulted cluster proved the inefficiency <strong>of</strong> chemical data in systematical categorizing<br />
<strong>of</strong> different taxa even in subgenus level.<br />
100
P 51<br />
Flora investigation <strong>of</strong> Ulubey (Turkey-Uşak) Canyons<br />
Mehtap Şahin<br />
Department <strong>of</strong> Science Education, Education Faculty, Uşak University, 1 Eylul<br />
Campus, Uşak, Turkey Republic; mehtap.sahin.64@gmail.com.<br />
Our field <strong>of</strong> search located on south and south east part <strong>of</strong> Uşak province is formed<br />
because <strong>of</strong> its geological features. The canyons are structurally formed from The<br />
Dokuzsele River and Banaz Stream which located on east <strong>of</strong> Uşak-Karahallı<br />
motorway, 800-900 metres above sea level. The canyons are 100-500 metres in<br />
width, 135-170 meters in dept and 75 kilometers in length. The structures <strong>of</strong> canyon<br />
system have been changing its form 4.5 million years as a result <strong>of</strong> chemical and<br />
mechanical corrosion <strong>of</strong> limestones. The soil in the canyons floor is alluvium soil with<br />
these specifications it is the second biggest in the world. 823 plant taxa belonging to<br />
70 families were collected from the area. The distribution <strong>of</strong> these plant taxa with<br />
respect to the floristic regions are as follows: 8% Irano-Turanian, 20% Mediterranean,<br />
10% Euro-Siberian, 20% widespread, 42% <strong>of</strong> these is unknown and 5% <strong>of</strong> this taxa is<br />
endemic for Turkey. Total endemic taxa are 13.2%.<br />
101
P 52<br />
Cloning <strong>of</strong> ITS (nrDNA) sequences unveils a complex reticulate<br />
pattern in the Iberian orophilous polyploid Jasione crispa<br />
(Campanulaceae)<br />
Miguel Serrano, 1 Roi Carbajal 1 , Santiago Ortiz 1 & Javier Fuertes-Aguilar 2<br />
1 Departamento de Botânica, Universidade de Santiago de Compostela, 15782,<br />
Compostela, Spain; serranov@usc.es<br />
2 Real Jardín Botánico de Madrid, CSIC, Pza. de Murillo, 2, 28014, Madrid, Spain<br />
Jasione crispa complex, distributed through Iberian and southern French ranges,<br />
exhibits a remarkable variation in its levels <strong>of</strong> ploidy (2x, 4x, 6x, 8x). The level <strong>of</strong><br />
ploidy increases with the altitude along the Iberian mountain ranges. Cloning <strong>of</strong> the<br />
ITS region from nr DNA evidenced geographical genetic differentiation among<br />
populations, undetected through direct sequencing, allowed the discrimination <strong>of</strong> coexisting<br />
ITS types within a single individual. All the detected ITS sequences from the<br />
70 analysed populations can be assigned to three lineages among those detected in<br />
a phylogenetic analysis <strong>of</strong> the genus, namely J. crispa, J.laevis and J. montana.<br />
Sequences detected in the few lowland J. crispa diploid populations exhibited the<br />
same ribotype than the sympatric diploid J. montana, which, despite its name, occurs<br />
in lowland or mid-altitude habitats from western and central Europe and northwestern<br />
Africa. Along the remaining J. crispa polyploid populations we frequently<br />
have found “laevis” and “montana” ITS types. The detection <strong>of</strong> “laevis” sequences,<br />
another mid-altitude and top mountain species, could be explained by introgression<br />
between tetraploids from both species or by allopolyploidization processes involving<br />
crispa and diploid or tetraploid forms <strong>of</strong> laevis. An intriguing result is the widespread<br />
occurrence <strong>of</strong> “montana” ITS sequences among the J. crispa orophilous polyploid<br />
populations. Several causes are discussed to account for such a presence: 1, the<br />
persistence <strong>of</strong> “montana” sequences through ancient introgression; 2, the<br />
permeability <strong>of</strong> “montana” types through the introgression with J. laevis, since several<br />
J. laevis also bear “montana ITS type”; or 3, a multiple allopolyploid origin for J.<br />
crispa, being J. montana one <strong>of</strong> its parents.<br />
102
P 53<br />
Notes on species <strong>of</strong> Papaver (Papaveraceae) in Iran<br />
Fariba Sharifnia & Sodeh Heydarian<br />
Department <strong>of</strong> Biology, Faculty <strong>of</strong> Sciences, Islamic Azad University, North Tehran<br />
Branch, P.O. Box: 19585-936. Tehran, Iran; fa_sharifnia@asia.com<br />
Papaver is the largest genus <strong>of</strong> the family Papaveraceae. According to Flora Iranica,<br />
there are 26 species in Iran <strong>of</strong> which 5 species are endemic. In this research,<br />
numerical taxonomy, anatomy and electronic microscopic research have been done.<br />
Referring to some herbaria, most <strong>of</strong> the specimens were observed and data were<br />
noted. The focus was on 77 quantity and quality characters <strong>of</strong> 75 samples from 14<br />
taxa in numerical taxonomy research. The 11 diagnosis characters <strong>of</strong> pollen grains<br />
and 6 diagnosis characters <strong>of</strong> seeds were studied, too. These data were subject to<br />
phenetical analysis carried out using SPSS, ver.15 s<strong>of</strong>tware The phenogram <strong>of</strong> these<br />
species was prepared and the factor analysis determined the source <strong>of</strong> changes<br />
between species. Besides, in present research, the different following organs such as<br />
pedicle, stem, basal petiole and cauline leaves were studied anatomically in the most<br />
possible replication. All seeds and pollen grains were photographed by Scanning<br />
Electronic Microscope (SEM). The following results have been obtained from this<br />
research: P. macrostomum and P. piptostigma are synonyms. P. gaubae was<br />
transferred to the variety level as P. glaucum var. gaubae. P. halophilum was<br />
transferred from species to variety level as P. macrostomum var. halophilum. P.<br />
fugax and P. armeniacum are synonyms. Distribution maps for all taxa were prepared<br />
together with the identification key for studied species.<br />
103
P 54<br />
Biosystematic study <strong>of</strong> the genus Bromus in Iran<br />
Masoud Sheidai, Fatemeh Fadaei, Maryam Nouroozei, Sara Saeidi<br />
Faculty <strong>of</strong> Biological Sciences, Shahid Beheshti University, Tehran, Iran.<br />
Bromus species are among important range grasses <strong>of</strong> Iran which have been placed<br />
in 6 sections according to Flora Iranica. Biosystematic study was performed on about<br />
80 populations <strong>of</strong> 17 Bromus species and varieties from 3 sections <strong>of</strong> Bromus L.,<br />
Genea Dum. and Pnigma Dum., using morphometric, cytogenetic, anatomic and<br />
seed protein characteristics. Intra and inter-specific morphological variations were<br />
studied by the use univariate and multivariate statistical methods. The species<br />
relationships were studied by clustering and ordination methods indicating<br />
distinctness <strong>of</strong> the species by grouping different populations <strong>of</strong> each species in a<br />
single cluster and also supporting in general the taxonomic treatment <strong>of</strong> the genus in<br />
Flora Iranica. The present study suggests the use <strong>of</strong> some ratio characters along with<br />
other quantitative and qualitative characters in taxonomy <strong>of</strong> the Bromus. Cytogenetic<br />
studies showed the occurrence <strong>of</strong> different ploidy level for some <strong>of</strong> the species and<br />
also the major role <strong>of</strong> change in chromosome number and the occurrence <strong>of</strong><br />
chromosomal structural changes (heterozygote translocations) in the evolution <strong>of</strong><br />
these genus Bromus. A significant difference in the frequency and distribution <strong>of</strong><br />
chiasmata among different populations and species indicated the occurrence <strong>of</strong> a<br />
major change in the genes controlling meiotic behavior <strong>of</strong> chromosomes during the<br />
species diversification. B-chromosomes occurred in many taxa which could<br />
significantly change the recombination index creating new genetic combinations in<br />
the next generation. Unreduced gametes were formed in most <strong>of</strong> the taxa studied<br />
through cytogenetic abnormalities including anaphase failure, desynapsis and<br />
cytomixis. Such unreduced gametes may have played a significant role in the<br />
adaptation and speciation <strong>of</strong> taxa studied. Anatomical and seed protein<br />
characteristics were also useful in the species delimitation in most <strong>of</strong> the species<br />
studied. Specific protein bands were identified for some <strong>of</strong> the species and also the<br />
bands present in all except one species which may be used in the species<br />
identification.<br />
104
P 55<br />
Polyploidization and adaptive radiation along water-usage gradient<br />
in the genus Cardamine<br />
Rie Shimizu-Inatsugi 1, 2 , Hiroshi Kudoh 2 & Kentaro Shimizu 1<br />
1 Institute <strong>of</strong> <strong>Plant</strong> Biology, University <strong>of</strong> Zurich, Zololikerstrasse 107,8008 Zurich,<br />
Switzerland; inatsugi@botinst.uzh.ch, kudoh@kobe-u.ac.jp, shimizu@botinst.uzh.ch<br />
& 2 Center for Ecological Research, Kyoto University, Hirano 2-509-3, Ohtsu, Shiga,<br />
520-2113 Japan<br />
It is known that more than half <strong>of</strong> plant species have experienced genome<br />
duplication (polyploidization) although the significance <strong>of</strong> genome duplication is still<br />
an open question. Susumu Ohno proposed that gene and genome duplication is a<br />
major motive force for evolution, since the additional gene copy can freely evolve. In<br />
contrast, Stebbins supposed that genome duplication retards adaptive evolution<br />
since the additional copy also can keep its original function. The aim <strong>of</strong> this study is<br />
to demonstrate the effect <strong>of</strong> polyploidization on adaptation through analyzing the<br />
adaptive radiation <strong>of</strong> an Arabidopsis relative, genus Cardamine, along water- usage<br />
gradient.<br />
Cardamine has more than two hundreds species, which includes both wet species<br />
and dry species. The diploid species live in either wet conditions or open habitats<br />
and the polyploid species live in intermediate and fluctuating habitats, where they<br />
experience both wet and dry condition. The phylogenetic analysis <strong>of</strong> CHS revealed<br />
that most polyploid species originated from the fusion <strong>of</strong> genomes from various<br />
combinations <strong>of</strong> both wet and open habitats. Moreover, the polyploidization between<br />
wet and dry species occurred at least 10 times from different parent pairs. These<br />
observations suggest that the rapid adaptive radiation <strong>of</strong> Cardamine is attributed to<br />
recurrent polyploidy.<br />
Consequently, Cardamine could be a good example to investigate the contribution <strong>of</strong><br />
polyploidy to an adaptive radiation. We speculate that a polyploid species can<br />
survive fluctuating habitat by exploiting the suitable gene set from either <strong>of</strong> its<br />
parental species according to the water environment. The close relationship to<br />
Arabidopsis (90%< in coding region) should allow the application <strong>of</strong> its genomic tools<br />
to Cardamine for further analysis.<br />
105
P 56<br />
Repeated range shifts <strong>of</strong> Potentilla fruticosa during glacial and<br />
interglacial periods on the Qinghai-Tibetan Plateau revealed by<br />
chloroplast DNA sequence variation<br />
Ayako Shimono<br />
National Institute for Environmental Studies, Environmental Biology Division, 16-2<br />
Onogawa, Tsukuba, Ibaraki, 305-8506, Japan<br />
The Qinghai-Tibetan plateau is one <strong>of</strong> the most extensive habitats for alpine plants in<br />
the world. The patterns <strong>of</strong> genetic variation in populations on the plateau can,<br />
therefore, provide us with the detailed demographic history <strong>of</strong> alpine plants. We<br />
analysed sequence variation and geographical distribution <strong>of</strong> the chloroplast matK<br />
region <strong>of</strong> Potentilla fruticosa L. (Rosaceae), a shrub currently present across the<br />
whole plateau. Sequence data were obtained from 522 individuals from 24<br />
populations, ranging from the high altitude interior to the relatively low altitude northeastern<br />
plateau. In the interior, the genetic diversity was high and contained<br />
ancestral haplotypes. In contrast, the populations in the north-eastern area had<br />
relatively low genetic diversity and recently derived haplotypes. The expansion time<br />
in the interior was estimated to be 17 times longer than that in the north-eastern<br />
region. These data suggest that the demographic history <strong>of</strong> P. fruticosa on the<br />
plateau involved population expansion during periods <strong>of</strong> climatic cooling, alternating<br />
with warmer periods when the population contracted to the interior region. The<br />
interior would have acted as a refugium and greatly contributed to the diversification<br />
<strong>of</strong> P. fruticosa. Our data also indicate that there have been two cycles <strong>of</strong> range<br />
shifting along with a recent dramatic expansion <strong>of</strong> P. fruticosa in response to climate<br />
fluctuation.<br />
106
P 57<br />
The alpine violet Viola lutea is ancestor <strong>of</strong> both metal-tolerant<br />
subspecies, Viola lutea ssp. westfalica and V. lutea ssp. calaminaria<br />
Aneta Słomka 1 , Maria Pilarska 1 , Monika Bożek 1 , Ulrich Hildebrandt 2 , Hermann<br />
Bothe 2 , Elżbieta Kuta 1<br />
1 Department <strong>of</strong> <strong>Plant</strong> Cytology and Embryology, Jagiellonian University, 52 Grodzka<br />
St., 31-044 Cracow, Poland; a.slomka@iphils.uj.edu.pl<br />
2 Institute <strong>of</strong> Botany, The University <strong>of</strong> Cologne, 15 Gyrh<strong>of</strong>strasse St., 50-<br />
923 Cologne, Germany<br />
The origin <strong>of</strong> metal-tolerant plants is still open to discussion. Controversies exist<br />
between paleo- and neoenemic opponents. Thus metalliferous species may either be<br />
remnants <strong>of</strong> widely distributed plants in glacial periods or may have been evolved in<br />
parallel, originating from their non-tolerant relatives thriving in neighborhood. The<br />
blue and the yellow zinc violets, previously named V. guestphalica Nauenburg and V.<br />
lutea ssp. calaminaria (Ging.), respectively, are some <strong>of</strong> the most endangered plant<br />
species in Central Europe. They have a very restricted distribution confined to sites<br />
with highly elevated concentrations <strong>of</strong> Zn and Pb in soil. Based on various<br />
nomenclature data, a close relationship <strong>of</strong> both zinc violets to Viola lutea was<br />
suggested. We used molecular markers (674 bp sequences <strong>of</strong> the ITS1-5.8S rDNA-<br />
ITS2 region <strong>of</strong> 6 closely related taxa), combined with several embryological<br />
characters to find ancestor(s) <strong>of</strong> the zinc violets. Molecular data unambiguously<br />
indicate that the yellow and the blue zinc violets are closely related to each other and<br />
also to V. lutea. Therefore we termed them V. lutea ssp. westfalica (blue zinc violet)<br />
and V. lutea ssp. calaminaria (yellow zinc violet). Embryological data indicate that the<br />
yellow zinc violet reproduces sexually forming viable pollen (95%) and sets seeds<br />
with typically organized embryos thereby following the sexual reproduction model <strong>of</strong><br />
its putative parental species V. lutea. Several disturbances affected sexual<br />
reproduction <strong>of</strong> the blue zinc violet, leading to the decrease <strong>of</strong> pollen and embryo<br />
viability (77% and 35%, respectively). Abnormalities could result from its hybrid<br />
origin, but the possibility that genetic drift may have led to an accumulation <strong>of</strong><br />
mutations in its small, local populations can not be excluded. In conclusion, both zinc<br />
violets may be remnants <strong>of</strong> previously widely distributed populations <strong>of</strong> V. lutea,<br />
having its main distribution in several disjunctive alpine regions <strong>of</strong> Europe.<br />
107
P 58<br />
Intraspecific genome size variation in Picris hieracioides<br />
(Compositae)<br />
Marek Slovák 1 , Petr Vít 2,3 , Tomáš Urfus 2,3 & Jan Suda 2,3<br />
1 Institute <strong>of</strong> Botany, Slovak Academy <strong>of</strong> Sciences, Dúbravská cesta 14, SK-845 23<br />
Bratislava, Slovak Republic; marek.slovak@savba.sk<br />
2 Department <strong>of</strong> Botany, Charles University, Benátská 2, CZ-128 01 Praha 2, Czech<br />
Republic; suda@natur.cuni.cz, vit@natur.cuni.cz & tomas.urfus@seznam.cz<br />
3 Institute <strong>of</strong> Botany, Academy <strong>of</strong> Sciences <strong>of</strong> the Czech Republic, Zámek 1, CZ-252<br />
43 Průhonice, Czech Republic<br />
Due to its large phenotypic variation, Picris hieracioides (hawkweed oxtongue) ranks<br />
among taxonomically challenging groups <strong>of</strong> European flora. Previous attempts to<br />
elucidate the taxonomy <strong>of</strong> the species using conventional karyological approaches<br />
were in vain, since no variation in the number <strong>of</strong> chromosomes was observed. In this<br />
study, we therefore employed another cytogenetic character, genome size, in order<br />
to determine the level <strong>of</strong> variation in this marker, search for potential interpretations <strong>of</strong><br />
the size heterogeneity, and assess its value for taxonomic decision-making. One<br />
hundred and seventy nine plant accessions from 54 populations distributed across 10<br />
European countries were analyzed using propidium iodide flow cytometry. The<br />
species showed a remarkable variation in genome size, with diploid 2C-values<br />
(population means) ranging from 2.26 to 3.11 pg (a 1.37-fold variation). A new<br />
cytotype, DNA triploid, was found for the first time. The pattern <strong>of</strong> genome size<br />
variation was quite complex, nonetheless, showed certain associations with<br />
phenotypic differentiation and geographic distribution. Genome size provided some<br />
support for the two main morphotypes recognized previously (i.e., the ‘Lower altitude’<br />
type and the ‘Higher altitude’ type), which possessed significantly different nuclear<br />
DNA amounts. However, interpretation <strong>of</strong> the within-group variation is still a<br />
challenge. Generally, the genome size <strong>of</strong> both morphotypes increased significantly<br />
from SW to NE. A relation between the distribution <strong>of</strong> genome size variants and the<br />
palaeovegetation history was found. We suggest that the complex evolutionary<br />
history <strong>of</strong> P. hieracioides (e.g., the existence <strong>of</strong> several cryptic lineages with different<br />
levels <strong>of</strong> cross-interactions) is the most plausible explanation for the observed<br />
heterogeneity in genome size.<br />
108
P 59<br />
Variation <strong>of</strong> Pinus mugo in the Giant Mountains (Sudethians)<br />
Karolina Sobierajska 1 , Krystyna Boratyńska 1 , Katarzyna Marcysiak 2 , Andrzej<br />
Lewandowski 1 , Artur Dzialuk 2 , Adam Boratyński 1,2<br />
1 Institute <strong>of</strong> Dendrology Polish Academy <strong>of</strong> Sciences, Parkowa 5, 62-035 Kórnik,<br />
Poland; sobieraj83@o2.pl<br />
2 Kazimierz Wielki University, Ossolińskich 12, 80-064 Bydgoszcz, Poland<br />
The verification <strong>of</strong> native provenance <strong>of</strong> several populations <strong>of</strong> Pinus mugo in the<br />
Karkonosze National Park (Giant Mountains, Sudethians) was the aim <strong>of</strong> the present<br />
work. The seven populations were sampled, four on hardly accessible precipices <strong>of</strong><br />
glacial cirques as a natural and three on the plane, topical part <strong>of</strong> the mountains as<br />
potentially alien provenance. Three populations were sampled in various parts <strong>of</strong> the<br />
Alps as possible seed source <strong>of</strong> alien provenances and two populations in the Tatras,<br />
as a comparative material. The differences among all individuals within samples and<br />
among samples were verified on the basis <strong>of</strong> analyses <strong>of</strong> DNA using 10 chloroplast<br />
microsatellite loci (cpSSR), on the level <strong>of</strong> isoenzyme using 10 enzymatic systems,<br />
biometrically using morphological and anatomical characters <strong>of</strong> needles and<br />
morphological characters <strong>of</strong> cones. Results indicate the high level <strong>of</strong> genetic<br />
differences, both DNA and isoenzymatic, between the Giant, Alpine and Tatra<br />
populations. The same points out also the biometrical analyses, especially on the<br />
needle characters, but differences between provenances have lower level than in the<br />
genetic analyses. The differences among samples from the Giant Mountains were<br />
found as relatively low. This indicates, that contemporary populations <strong>of</strong> P. mugo on<br />
the areas deforested and utilized as a pastures and meadows in the historical times<br />
have been colonized spontaneously or reforested with the local material. The<br />
participation <strong>of</strong> seeds from the Alps and/or Tatras has been excluded.<br />
109
P 60<br />
Phylogeny in Tanacetum (Anthemideae, Asteraceae) inferred<br />
from nuclear ribosomal DNA sequences<br />
Ali Sonboli<br />
Mozaffarian 4<br />
1 , Shahrokh Kazempour Osaloo 2 , Hossein Riahi 3 & Valioallah<br />
1 Department <strong>of</strong> Biology, Medicinal <strong>Plant</strong>s and Drugs Research Institute, Shahid<br />
Behshti University, G.C., Evin, 1983963113, Tehran, Iran. a-sonboli@sbu.ac.ir<br />
2 Department <strong>of</strong> Biology, Faculty <strong>of</strong> Basic Sciences, Tarbiat Modares University,<br />
Tehran, Iran<br />
3 Department <strong>of</strong> Biology, Faculty <strong>of</strong> Biological Sciences, Shahid Behshti University,<br />
Tehran, Iran<br />
4 Department <strong>of</strong> Botany, Research Institute <strong>of</strong> Forests and Rangelands, Tehran, Iran<br />
Asteraceae is one <strong>of</strong> the largest angiosperm families and comprises about 1300<br />
genera and 25,000 species distributed in the worldwide. The genus Tanacetum<br />
belongs to the tribe Anthemideae. Within the tribe, Tanacetum is the third largest<br />
genus after Artemisia and Anthemis, comprising ca. 160 species. Phylogenetic<br />
relationships among some members <strong>of</strong> Anthemideae were assessed using<br />
sequences <strong>of</strong> the nrDNA internal transcribed spacer (ITS) region to study the<br />
delimitation <strong>of</strong> the genus Tanacetum in broad sense. Total genomic DNA was<br />
extracted from leaves by DNeasy <strong>Plant</strong> Mini kit (Qiagen). PCR amplifications <strong>of</strong> the<br />
nrDNA ITS were performed using primers ITS4 and ITS5. Maximum parsimony<br />
analysis <strong>of</strong> the data set was carried out for phylogenetic reconstruction using the<br />
heuristic search algorithm <strong>of</strong> PAUP* with ACCTRAN, MULPARS and TBR branch<br />
swapping in action. The results suggest that the genus Tanacetum, in its classical<br />
circumscription, is not monophyletic due to the consistent placement <strong>of</strong> segregated<br />
genera (e.g. Tanacetopsis, Ajania, Xylanthemum, Lepidolopsis and Richteria).<br />
Furthermore, ITS data was in conflict with artificial infrageneric classification <strong>of</strong> the<br />
genus Tanacetum sensu Podlech and provide support for the new subtribal<br />
classification <strong>of</strong> the tribe Anthemideae sensu Oberprieler et al. This investigation<br />
identified 10 major clades within the Tanacetum and confirmed the inclusion <strong>of</strong><br />
Gonospermum and Lugoa into Tanacetum.<br />
110
P 61<br />
Biogeography <strong>of</strong> tall-herb species in the Carpathians: a case study<br />
<strong>of</strong> Cicerbita alpina (L.) Wallr.<br />
Alina Stachurska-Swakoń 1 , Elżbieta Cieślak 2 , Michał Ronikier 2<br />
1 Institute <strong>of</strong> Botany, Jagiellonian University, ul. Kopernika 27, 31-501 Kraków,<br />
Poland; alina.stachurska-swakon@uj.edu.pl<br />
2 Institute <strong>of</strong> Botany, Polish Academy <strong>of</strong> Sciences, ul. Lubicz 46, 31-501 Kraków,<br />
Poland<br />
The alliance Adenostylion alliariae Br.-Bl. 1925, (class Mulgedio-Aconitetea Hadač et<br />
Klika et Hadač 1944) includes tall-herb communities which constitute important<br />
elements <strong>of</strong> vegetation within the subalpine zone <strong>of</strong> European mountain ranges. In<br />
the frame <strong>of</strong> our project, a complex biogeographical study focused on these<br />
communities in the Carpathians has been initiated, covering aspects <strong>of</strong> syntaxonomy,<br />
phytogeography and phylogeography. According to a preliminary analysis, 32<br />
communities <strong>of</strong> this alliance occur in the Carpathians. They form groupings<br />
characteristic for the Western, Eastern and Southern Carpathians, with diverse<br />
species compositions, including endemic species and other species reaching limits <strong>of</strong><br />
their distribution. As the flora <strong>of</strong> tall-herb communities consists <strong>of</strong> different<br />
geographical elements (eg. the alpine-Central-European species, the arctic-alpine<br />
species, the Carpathian-Balkan species, the endemic species, the boreal species)<br />
there is a question about its origin in different part <strong>of</strong> mountains and potential<br />
migration routes during the Quaternary Period. In the second part <strong>of</strong> our project,<br />
several tall-herb species were selected to examine their genetic structure and infer<br />
their distribution history: eg. Adenostyles alliariae, Cicerbita alpina, Doronicum<br />
austriacum, Geranium sylvaticum, Ranunculus platanifolius. Cicerbita alpina,<br />
presented in this article, is the character species <strong>of</strong> the Adenostylion alliariae alliance<br />
and has a relatively wide distribution range covering central and northern European<br />
mountain massifs. The study is based on the AFLP analysis applied to a distributionwide<br />
sampling <strong>of</strong> populations from the Alps, Balkans, Carpathians and Scandinavia.<br />
Research is financially supported by the Polish Ministry <strong>of</strong> Science and Higher<br />
Education Grant No. 2 P04G 09528.<br />
111
P 62<br />
The Melampyrum sylvaticum group in Central Europe – comparison<br />
among variation patterns in the Alps, Carpathians and Hercynian<br />
Massif<br />
Jakub Těšitel, Tamara Malinová, Milan Štech & Miroslava Herbstová<br />
Department <strong>of</strong> Botany, Faculty <strong>of</strong> Science, University <strong>of</strong> South Bohemia, Branišovská<br />
31, 370 05 České Budějovice, Czech Republic; jakub.tesitel@centrum.cz,<br />
milan.stech.prf.jcu.cz<br />
We investigated morphological and molecular variation in the Melampyrum<br />
sylvaticum group in the Alps and Carpathians to capture and compare variation<br />
patterns in these regions and reconstruct evolutionary history <strong>of</strong> the whole complex.<br />
Two additional species, M. saxosum and M. herbichii, have been traditionally<br />
delimited from M. sylvaticum s. str. in the Eastern Carpathians on the basis <strong>of</strong> corolla<br />
size and anther length. These two species should differ from each other in corolla<br />
color which is white in M. saxosum or golden yellow in M. herbichii (i. e. same color<br />
as in M. sylvaticum s. str.). Populations occurring in the Alps have been always<br />
assigned to M. sylvaticum s. str. although certain degree <strong>of</strong> variation has been<br />
reported from this region too.<br />
We collected population samples from the Alps, Eastern and Western Carpathians<br />
and the Hercynian Massif. Morphometric analyses <strong>of</strong> corolla shape (thin plate spline<br />
with sliding semilandmarks) and sequencing <strong>of</strong> ITS region <strong>of</strong> nuclear DNA and trnLtrnT<br />
region <strong>of</strong> cpDNA were employed to capture morphological and molecular<br />
variation respectively. Beside this, we also recorded variation in corolla color.<br />
We detected a pronounced morphological and molecular differentiation <strong>of</strong> the<br />
Eastern Carpathian populations from the rest. These results indicate that they are not<br />
directly interrelated to the Western Carpathian and Hercynian type but are two<br />
distant lineages which met and hybridized on the boundary between the Eastern and<br />
Western Carpathians. We did not detect any coincidence between differences in<br />
corolla color and variation in any <strong>of</strong> the morphological traits or molecular markers<br />
within the North-Eastern Carpathian region. Hence, we suggested M. saxosum and<br />
M. herbichii conspecific (a single species displaying two corolla colors).<br />
112
P 63<br />
Genetic structure <strong>of</strong> endangered Eremostachys superba as<br />
assessed by RAPD analysis<br />
Susheel Verma 1 , J. L. Karihaloo 2 and A. K. Koul 3<br />
1 Centre for Biodiversity Studies, School <strong>of</strong> Biosciences & Biotechnology, Baba<br />
Ghulam Shah Badshah University, Rajouri – 185 131, J&K, India; 2 Asia Pacific<br />
Consortium for Agricultural Biotechnology, CG Centres Block, DPS Marg, New Delhi<br />
– 110 012, India; 3 Centre for Biodiversity Studies, School <strong>of</strong> Biosciences &<br />
Biotechnology, Baba Ghulam Shah Badshah University, Rajouri – 185 131, J&K,<br />
India; 1 eremurus@rediffmail.com<br />
Eremostschys superba Royle ex Benth. (Lamiaceae), an endangered species has<br />
undergone a severe decline in population size since its discovery in the North-<br />
Western Hamalaya in late 19 th<br />
Century. The reason attributed to its decline is<br />
anthropogenic stress because <strong>of</strong> its high medicinal value. One hundred and seventy<br />
two plants from six populations in the Indian states <strong>of</strong> Uttar Pradesh and Jammu &<br />
Kashmir, located between 0.45 km and 455.72 km apart from each other were<br />
evaluated for RAPD polymorphism to determine the genetic structure <strong>of</strong> the species.<br />
Sixteen random primers generated 92 bands overall, 77 <strong>of</strong> which were polymorphic.<br />
Shannon’s index <strong>of</strong> genetic diversity within populations (Ho) ranged between 0.305<br />
and 0.421; the average within population diversity (Hpop) was 0.389; and the total<br />
species diversity (Hsp) was 0.478. The population from Mohand, the type locality <strong>of</strong><br />
the species, had the lowest number <strong>of</strong> plants, at 18, and was genetically the most<br />
depauperate. Among the other populations, ranging in size between 52 and 1,022<br />
individuals, no relation between population size and genetic diversity was evident. It<br />
is suggested that these six populations represent relics <strong>of</strong> a larger, extended<br />
population in which the presence <strong>of</strong> perennating rootstock has helped preserve<br />
historic patterns <strong>of</strong> genetic diversity. Analysis <strong>of</strong> Molecular Variance revealed that<br />
83.01% <strong>of</strong> the variation exists within populations which were consistent with earlier<br />
studies on reproductive biology <strong>of</strong> E. superba, which indicated this species is<br />
predominantly allogamous. FST distances between all populations were significant,<br />
indicating geographic differentiation despite some <strong>of</strong> them being closely located. The<br />
paper will speak in detail about the factors that may have influenced the partitioning<br />
<strong>of</strong> genetic diversity. Also the strategies for conservation <strong>of</strong> the species will be<br />
discussed.<br />
113
P 64<br />
The occurrence <strong>of</strong> arctic-alpine elements within high - mountain<br />
plant communities in relation to enviromental factors, functional<br />
types and phytogeography<br />
Ivana Šibíková 1 & Jozef Šibík 1<br />
1 Institute <strong>of</strong> Botany, Slovak Academy <strong>of</strong> Sciences, Dúbravská cesta 14, SK-845 23<br />
Bratislava, Slovak Republic; ivana.sibikova@savba.sk & jozef.sibik@savba.sk<br />
This contribution serves a view on processing <strong>of</strong> phytosociological relevés together<br />
with phytogeographical, functional and ecological data, paying particular attention to<br />
phytogeographical elements in the flora <strong>of</strong> Western Carpathians, life forms <strong>of</strong><br />
individual taxa and Ellenberg’s indicator values. We used selected high-mountain<br />
plant communities <strong>of</strong> Western Carpathians with abundant arctic-alpine species as<br />
excellent model system. On the other hand, this contribution handles with the<br />
distribution <strong>of</strong> arctic-alpine taxa within Western Carpathians and their abundance in<br />
individual vegetation types.<br />
We worked with more than 43 thousand phytosociological samples taken from Slovak<br />
National Vegetation Database. Fourteen alliances (from the classes Asplenietea<br />
trichomanis, Caricetea curvulae, Carici rupestris-Kobresietea bellardii, Elyno-<br />
Seslerietea, Loiseleurio-Vaccinietea, Montio-Cardaminetea, Mulgedio-Aconitetea,<br />
Salicetea herbaceae and Thlaspietea rotundifolii) were compared with respect to<br />
abundance <strong>of</strong> chorological elements, species richness, environmental factors and<br />
species composition.<br />
The abundance <strong>of</strong> arctic-alpine species was significantly correlated not only with the<br />
European high-mountain element, but also with the occurrence <strong>of</strong> Carpathian or<br />
Western Carpathian endemic taxa. The island phenomenon <strong>of</strong> the highest mountains<br />
gave rise not only to formation <strong>of</strong> refuge for relic taxa, but on the other hand,<br />
according to plasticity <strong>of</strong> individual taxa, the same habitats also provided suitable<br />
conditions for speciation and hence became the centre <strong>of</strong> endemism.<br />
114
P 65<br />
Cytogeography <strong>of</strong> the Alyssum montanum – A. repens complex and<br />
related taxa<br />
Stanislav Španiel 1 , Judita Lihová 1 , Mincho E. Anchev 3 , Nicodemo G. Passalacqua 4 &<br />
Karol Marhold 1,2<br />
1 Institute <strong>of</strong> Botany, Slovak Academy <strong>of</strong> Sciences, Dúbravská cesta 14, SK-845 23<br />
Bratislava, Slovak Republic; stanislav.spaniel@savba.sk, judita.lihova@savba.sk,<br />
karol.marhold@savba.sk<br />
2 Department <strong>of</strong> Botany, Charles University, Benátská 2, CZ-128 01 Praha 2, Czech<br />
Republic<br />
3 Institute <strong>of</strong> Botany, Bulgarian Academy <strong>of</strong> Sciences, Acad. G. Bonchev Str., Bl. 23,<br />
B-1113 S<strong>of</strong>ia, Bulgaria; botmanch@bio.bas.bg<br />
4 Museo di Storia Naturale della Calabria ed Orto Botanico, Università della Calabria,<br />
I-87030 Arcavacata di Rende (CS), Italy; nicodemo@unical.it<br />
The Alyssum montanum – A. repens (Brassicaceae) complex is a taxonomically<br />
critical group with large morphological diversity in central and southern Europe.<br />
A number <strong>of</strong> infraspecific taxa have been described within both A. montanum and A.<br />
repens, and several putative relatives have been reported from the Balkan and<br />
Apennine Peninsulas. Our study aims to resolve evolutionary history <strong>of</strong> this complex,<br />
and to derive a sound taxonomic concept. Here we present our first insights into its<br />
cytogeography, based on chromosome number counts and DNA ploidy levels<br />
estimated by flow cytometry.<br />
Three ploidy levels have been found in A. montanum. Both diploids (2n=16) and<br />
tetraploids (2n=32) are common across the species area, while hexaploids (2n=48)<br />
appear to be rare (so far found only in the Apennine Peninsula). Within A. repens<br />
only tetraploid and hexaploid cytotypes have been found in the sampled material. A<br />
few populations corresponding to A. cuneifolium subsp. pirinicum (2n=18) and A.<br />
pulvinare (2n≈6x) have been analyzed as well. The material studied includes<br />
samples from type localities <strong>of</strong> several names: A. cuneifolium subsp. pirinicum<br />
(2n≈2x), A. diffusum (2n≈2x, 4x), A. mildeanum (2n≈6x), A. montanum subsp. brymii<br />
(2n≈4x), A. montanum subsp. alibotuschicum (2n≈4x), A. pedemontanum (2n≈6x), A.<br />
preissmannii (2n≈2x), A. reiseri (2n≈2x), A. repens (2n≈4x), A. stribrnyi (2n≈4x) and<br />
A. wierzbickii (2n≈2x).<br />
115
P 66<br />
Phylogeny and comparative phylogeography <strong>of</strong> the orchid genus<br />
Epipactis along the Italian peninsula<br />
Valentina Tranchida Lombardo 1,2 , Antonia Cristaudo 1 , Salvatore Cozzolino 2<br />
1<br />
Sezione di Biologia ed Ecologia Vegetale D.A.C.P.A., Università di Catania, via<br />
Vadisavoia 5, 95123, Catania, Italy; valentinatranchida@simail.it.<br />
2 Sezione di Biologia Vegetale, Università “Federico II”, Via Foria 223, 80139 Napoli.<br />
The genus Epipactis is a morphologically variable aggregate <strong>of</strong> taxa that can<br />
represent an interesting model for investigating the consequences <strong>of</strong> geographic<br />
fragmentation and <strong>of</strong> quaternary glaciations on species cladogenesis and distribution<br />
in the Mediterranean basin. Here we investigate the phylogenetic and<br />
phylogeographic relationships among closely related Epipactis species distributed<br />
along the Italian Peninsula with the aim to understand whether the recent<br />
paleoclimatic changes occurred in this area may have shaped the actual patterns <strong>of</strong><br />
clade diversification and distribution in Epipactis. For these aims, we analysed<br />
chloroplast DNA (cpDNA) sequence variation for reconstructing patterns <strong>of</strong><br />
phylogenetic relationships among closely related Epipactis species and distribution <strong>of</strong><br />
cpDNA microsatellite haplotypes to reconstruct their main phylogeographic routes. We<br />
found that the genus Epipactis encompasses two main phylogenetic lineages, namely<br />
the E. helleborine and the E. muelleri/microphylla/atrorubens groups including both<br />
widespread allogamous species and several endemic, geographically isolated,<br />
autogamous taxa. We also detected low level <strong>of</strong> variation in cpDNA microsatellite,<br />
with a single main haplotype for the E. helleborine lineage and three main haplotypes<br />
for the E. muelleri/microphylla/atrorubens lineage being widespread along the Italian<br />
peninsula, and few other rare haplotypes locally distributed. These data strongly<br />
support the hypothesis <strong>of</strong> a very recent (postglacial) colonization <strong>of</strong> the Italian<br />
peninsula and <strong>of</strong> the multiple evolutions <strong>of</strong> locally endemic taxa from the main<br />
phylogenetic lineages. Frequent and rapid changes in breeding system (from<br />
allogamy to autogamy) could have represented the mechanism promoting this rapid<br />
diversification and the observed high taxonomic complexity.<br />
116
P 67<br />
Diversity <strong>of</strong> Draba L. sect. Aizopsis DC. (Brassicaceae) in Sicily<br />
Pietro Mazzola, Francesco Maria Raimondo, Angelo Troia<br />
Dipartimento di Scienze Botaniche dell’Università, via Archirafi 38, I-90123 Palermo,<br />
Italy; mazzolap@unipa.it<br />
The genus Draba L. (Brassicaceae) is a typical element <strong>of</strong> arctic and alpine floras,<br />
known for its taxonomic complexity. The species belonging to the sect. Aizopsis DC.<br />
are perennial rosette plants occurring on mountain areas from Spain to West Asia:<br />
<strong>of</strong>ten densely pulvinate, they have rigid, entire, ciliate leaves and usually yellow<br />
flowers. According to Flora Europaea (1993), about 17 species occur in Europe.<br />
Taxonomic status and delimitation <strong>of</strong> several species are still doubtful, not only for<br />
the unsatisfactory knowledge <strong>of</strong> their biology and variability, but also for their genetic<br />
structure derived from last geological history (Quaternary glacial-postglacial periods).<br />
In this context, the island <strong>of</strong> Sicily in the center <strong>of</strong> Mediterranean, with its ascertained<br />
role <strong>of</strong> refugium during glacial periods, is one <strong>of</strong> the key areas to understand patterns<br />
<strong>of</strong> speciation, migration and recolonization <strong>of</strong> the group as a whole.<br />
Today, two species belonging to the sect. Aizopsis are reported for Sicily: Draba<br />
aspera Bertol., whose distribution should include mountains <strong>of</strong> Northern Balkans,<br />
Central and Southern Italy, and Pyrenees as well; and Draba olympicoides Strobl,<br />
endemic to the Madonie Mountains (Central-Northern Sicily), whose taxonomic status<br />
is however uncertain.<br />
We present here the first results <strong>of</strong> taxonomic and biosystematic investigations aimed<br />
to ascertain the number <strong>of</strong> taxa <strong>of</strong> the sect. Aizopsis occurring in the mountains <strong>of</strong><br />
Sicily, which species occur, and the amount <strong>of</strong> infra- and inter-specific diversity using<br />
enzyme electrophoresis.<br />
117
P 68<br />
Phylogeography and population structure <strong>of</strong> Dryas octopetala<br />
analysed by microsatellite markers<br />
Unni Vik 1* , Marte Holten Jørgensen 1 , Håvard Kauserud 2 & Anne Krag Brysting 1<br />
1<br />
CEES, Dept. <strong>of</strong> Biology, P.O. Box 1066 Blindern, NO-0316 Oslo, Norway;<br />
*unnv@student.bio.uio.no, 2 MERG, Dept. <strong>of</strong> Biology, P.O. Box 1066 Blindern, NO-<br />
0316 Oslo, Norway<br />
Dryas octopetala L. belongs to a circumpolar species complex where the taxonomic<br />
delimitations are not fully clarified. The plant is one <strong>of</strong> the most important components<br />
<strong>of</strong> tundra and heaths in terms <strong>of</strong> biomass, as it forms the vegetation carpet in dry<br />
gravelly sites from the mid-boreal to the high arctic zone.<br />
Microsatellites are co-dominant markers, which are ideal for resolving genetic<br />
variation at finer scales but might also be useful for interpreting phylogeographic<br />
patterns at a larger scale. Ten newly developed microsatellite markers are used in<br />
this work to infer phylogeography and population structure <strong>of</strong> Dryas octopetala<br />
populations from the following main localities: Finse (southern Norway),<br />
Longyearbyen (Svalbard), Ny-Ålesund (Svalbard), Tromsø (northern Norway) and<br />
Langøysund (southern Norway). From each main locality, 30 plants were collected<br />
from each <strong>of</strong> three sub-localities localized approximately 1000 m apart. In addition to<br />
these populations, 3 x 10 individuals from Greenland and 5 x 10 individuals from<br />
Russia are included in the analyses.<br />
Preliminary analyses indicate that the genetic data contain geographically structured<br />
variation, with a relatively high genetic diversity observed for the Svalbard<br />
populations, and a somewhat lower diversity for the populations from mainland<br />
Norway. These patterns are consistent with results from a recent AFLP study which<br />
suggested different postglacial colonization routes for these two areas; whereas<br />
mainland Norway are colonized from a southern refugium, Svalbard may represent a<br />
contact point between a southern colonization and a colonization from an eastern<br />
(Russian) refugium.<br />
118
P 69<br />
Alpine aromatic and medicinal plants: conservation through<br />
domestication<br />
José F. Vouillamoz, Catherine A. Bar<strong>of</strong>fio & Christoph Carlen<br />
Agroscope Changins-Wädenswil ACW, Centre de recherche Conthey, 1964<br />
Conthey, Switzerland; jose.vouillamoz@acw.admin.ch<br />
In the past two decades, Alpine aromatic and medicinal plants have gained more and<br />
more interest with food, cosmetic and pharmaceutical industries. Wild populations are<br />
being used to produce large quantities <strong>of</strong> aromatic compounds, essential oils or<br />
drugs. This might threaten some endangered taxa by leading to a loss <strong>of</strong> Alpine<br />
biodiversity and genetic erosion. To prevent from wild collecting, we have carried out<br />
several domestication and selection programs on emblematic plants <strong>of</strong> the Alps.<br />
Edelweiss (Leontopodium alpinum L.), one <strong>of</strong> the best-known European mountain<br />
plant, has been successfully domesticated and the variety ‘Helvetia’ is now cultivated<br />
for ornamental or cosmetic purposes. Genepy (Artemisia umbelliformis Lam.) is <strong>of</strong>ten<br />
collected in nature by liquor producers, mainly in Northern Italy. We have thus<br />
domesticated Alpine genepy and selected two cultivars (with and without thujone).<br />
Several research programs on other Alpine species are now in the pipeline: Rhodiola<br />
rosea L., a promising adaptogen, Sideritis montana L., a good source <strong>of</strong> antioxidant<br />
compounds, Dryas octopetala L., a plant with anti-UV activities, etc. These programs<br />
aim at providing interesting and new plant material to producers in order to avoid wild<br />
collecting.<br />
119
P 70<br />
Genetic variation <strong>of</strong> Rhodiola rosea L. in Trentino region (Italy) as<br />
detected by microsatellite markers<br />
Elena Zini 1 , Carla Vender 1 & Matteo Komjanc 2<br />
1 Agricultural Research Council, Forest Monitoring and Planning Research Unit (CRA-<br />
MPF), Piazza Nicolini, 6, 38100 Villazzano (TN), Italy; elena.zini@iasma.it;<br />
carla.vender@entecra.it<br />
2 Genetics and Molecular Biology Department, Edmundo Mach Foundation Research<br />
Center, Via E. Mach 1, 38010 San Michele all’ Adige (TN), Italy;<br />
matteo.komjanc@iasma.it<br />
Rhodiola rosea L. (Crassulaceae) is a circumpolar-montane/alpine species <strong>of</strong> coldtemperate<br />
and subarctic areas <strong>of</strong> the northern hemisphere. In Italy, it is widely<br />
distributed in siliceous substrates <strong>of</strong> alpine meadows (1500- 3000 mt). It is a popular<br />
plant <strong>of</strong> traditional medical system in Eastern Europe and Asia: extracts <strong>of</strong> R. rosea<br />
root were found to contain powerful adaptogens, supposedly enhancing memory and<br />
stress mastering. Genetic variation <strong>of</strong> 8 R. rosea L. populations from the Trentino<br />
region (North <strong>of</strong> Italy) was investigated using microsatellite markers. SSRs from<br />
Rhodiola rosea L. were developed with an enrichment procedure for the first time.<br />
Analysis <strong>of</strong> molecular variance (AMOVA) showed that the genetic variation was<br />
mainly found among populations (78%). The main factor responsible for the high<br />
level <strong>of</strong> variation among populations is probably the isolation from other populations,<br />
due to mountainous environment. An additional analysis <strong>of</strong> population structure by<br />
principal component analysis (PCA) <strong>of</strong> allele frequencies was conducted. PCA results<br />
reflected the geographic distribution <strong>of</strong> the populations sampled in different locations<br />
in Trentino region. A simulated annealing procedure implemented in the spatial<br />
analysis <strong>of</strong> molecular variance (SAMOVA) algorithm was used to define groups <strong>of</strong><br />
populations that are geographically homogeneous and maximally differentiated from<br />
each other. The results <strong>of</strong> SAMOVA confirmed the existence <strong>of</strong> geographic structure<br />
in the Rhodiola rosea L: populations.<br />
120
P 71<br />
Phylogeographic relationships between infraspecific taxa <strong>of</strong><br />
Astragalus vesicarius L. (Fabaceae) in Europe<br />
Elke Zippel,<br />
Botanical Garden and Botanic Museum Berlin-Dahlem, Königin-Luise-Straße 6-8,<br />
14195 Berlin, Germany, e.zippel@bgbm.org<br />
Several infraspecific taxa <strong>of</strong> Astragalus vesicarius L. (Fabaceae) occur throughout<br />
Southern Europe. Their distribution ranges from the Iberian Peninsula, the Southern<br />
Alps in France, Italy and Croatia to the Balkan Peninsula and Greece, and further<br />
from the Pannonic region to Ukraine. Due to the considerable variation <strong>of</strong> Astragalus<br />
vesicarius s. lat. it is difficult or impossible to distinguish between infraspecific taxa<br />
which differ e.g. in flower colour and slightly in form and length <strong>of</strong> calyx and banner,<br />
as well as in symmetry and size <strong>of</strong> calyx teeth.<br />
Astragalus vesicarius s.l. is a rare species and occurs presently in regions which<br />
were unglaciated or at the outer boundary <strong>of</strong> the maximum expansion <strong>of</strong> the Würm<br />
glacial. Only few populations <strong>of</strong> the subsp. pastellianus in Northern Italy are known<br />
from formerly glaciated regions, the inner alpine dry valleys Vinschgau and Aosta<br />
valley.<br />
The poster shows first results <strong>of</strong> a molecular study <strong>of</strong> populations <strong>of</strong> Astragalus<br />
vesicarius s.l. from nearly the whole distribution range. PsbA and ITS sequences, as<br />
well as AFLP data provided first hints on a high genetic differentiation within the<br />
infraspecific taxa and a split <strong>of</strong> the Astragalus vesicarius s.l. group into a Western<br />
and Eastern lineage. The data also suggest a multiple origin <strong>of</strong> the subsp.<br />
pastellianus in the inner alpine dry valleys <strong>of</strong> Northern Italy: the population <strong>of</strong> the<br />
Aosta Valley belongs like the populations from the Monte Pastello near Verona to the<br />
Western lineage, while the populations from the Vinschgau are <strong>of</strong> Eastern origin.<br />
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P 72<br />
BioCASE – access to specimen and observation data for<br />
taxonomists<br />
Elke Zippel , Wolf-Henning Kusber, Patricia Kelbert, Jörg Holetschek, Anton Güntsch<br />
& Walter Berendsohn<br />
Botanic Garden and Botanical Museum Berlin-Dahlem, Königin-Luise-Straße 6-8,<br />
14195 Berlin, Germany, e.zippel@bgbm.org<br />
Natural history collections and species observation records form a unique archive <strong>of</strong><br />
biodiversity. Each object or record documents the occurrence <strong>of</strong> a species in a given<br />
location at a point in time. The multilingual Biological Collection Access Service for<br />
Europe (search.biocase.org) provides access to 50 million records for the European<br />
Fauna and Flora, based on the GBIF index. The content <strong>of</strong>fered ranges from simple<br />
occurrence data to highly structured specimen information with multimedia content<br />
and multiple identifications. Searching for information on a specific species<br />
sometimes makes it necessary to look under several scientific names. In the<br />
BioCASE portal, the user can opt to extend the search by means <strong>of</strong> a taxonomic<br />
thesaurus. Known synonyms, included taxa such as subspecies, and related<br />
taxonomic concepts are included in the query. For botanical names, the Euro+Med<br />
<strong>Plant</strong>Base database is used as the thesaurus in the BioCASE portal. An alternative<br />
access system (search.biocase.org/toto/) allows the selection <strong>of</strong> names from those<br />
<strong>of</strong>fered by several thesauri before the query is executed. The portal s<strong>of</strong>tware can be<br />
adapted to other information needs. The German GBIF node for Botany provides<br />
access to German Phytodiversity using the German floristic standard lists. Further,<br />
an annotation system in all BioCASE portals allows the user to comment the data. A<br />
specimen access module for taxonomists is under development for the EDIT Internet<br />
Platform for Cybertaxonomy.<br />
122
P 73<br />
Evolutionary Trends in Genus Alysicarpus Desv.<br />
Arvind S. Dhabe and Dileep S. Pokle.<br />
Department <strong>of</strong> Botany, Dr. Babasaheb Ambedkar Marathwada University,<br />
Aurangabad, 431004. India e-mail:- asdhabe2006@yahoo.co.in ,<br />
dspokale2005@yahoo.co.in<br />
The genus Alysicarpus Desv is distributed in tropics & subtropics. Main centre<br />
<strong>of</strong> distribution is India followed by Africa. It is represented by about 32 species and 42<br />
taxa <strong>of</strong> which nearly 17species and 9 infraspecific taxa occur in India especially in<br />
Marathwada. Out <strong>of</strong> 42 taxa, 12 taxa are endemic to India. The genus was revised for<br />
India (Pokle 1997-2000) and experimental taxonomic studies were carried out which<br />
includes Comparative Morphology, Floral biology, Phytochemistry, Seed Morphology<br />
and Testatopography, Anatomy and Dermatology, Seed anatomy, Seedling<br />
morphology and Palynology.<br />
The data procured from the studies was subjected to numerical analysis to<br />
reveal the relationships and evolutionary trends <strong>of</strong> the species. It revealed that, the<br />
genus can be subdivided into 5 groups <strong>of</strong> closely related species. Most primitive<br />
taxon appears to be A.bupleurifolius var. gracilis while the most advanced taxon<br />
appears to be A.hamosus. The present paper deals with detailed numerical analysis<br />
and the evolutionary trends and features are discussed in details.<br />
123
P 74<br />
Distribution and Conservation Status <strong>of</strong> Some Steno-endemic<br />
Species Peculiar to Central Taurus (Turkey)<br />
Süleyman Doğu 1 , Muhittin Dinç 2 & Yavuz Bağcı 3<br />
1 Selçuk University, Education Faculty, Department <strong>of</strong> Science Education,<br />
42090 Meram, Konya, Turkey; sdogu@selcuk.edu.tr<br />
2 Selçuk University, Education Faculty, Department <strong>of</strong> Biology Education,<br />
42090 Meram, Konya, Turkey; muhdinc@yahoo.com<br />
3 Selçuk University, Science and Art Faculty, Department <strong>of</strong> Biology, 42031 Kampüs,<br />
Konya, Turkey; ybagci@selcuk.edu.tr<br />
Central Taurus have very rich flora and are important endemism centre <strong>of</strong> Turkey.<br />
New distributional data for 6 steno-endemic species (Viola isaurica Contandr. &<br />
Quèzel, Viola ermenekensis Ş. Yıldırımlı & M. Dinç, Sartoria hedysaroides Boiss. &<br />
Heldr., Scorzonera longiana H.Sümbül, Cicer isauricum P. H. Davis, Salvia<br />
adenocaulon P. H. Davis for Central Taurus is determined from Ermenek and<br />
Sarıveliler districts <strong>of</strong> Karaman province. The descriptions <strong>of</strong> the species are<br />
reviewed based on the literature data and the studies on the collected specimens.<br />
IUCN red list categories <strong>of</strong> these taxa are updated in the light <strong>of</strong> the literature, the<br />
observations on the determined populations and the possible threats. The habitats<br />
they occupy, their associated species, distribution map and photos are also<br />
presented.<br />
124
P 75<br />
Evolutionary processes in South American Andes: Molecular Phylogeny,<br />
and Biogeography <strong>of</strong> Festuca (Poaceae)<br />
Daniel Stančík<br />
Department <strong>of</strong> Botany, Charles University, Benátská 2, CZ-128 01 Praha 2, Czech<br />
Republic, dan_stancik@yahoo.com<br />
Cosmopolitan genus Festuca is one <strong>of</strong> the largest grass genera in the World<br />
composed <strong>of</strong> more than 450 species. With about 140 species, South America<br />
represents one <strong>of</strong> the most important generic diversity centers. This diversity is a<br />
result <strong>of</strong> relatively young speciation after tertiary immigration <strong>of</strong> this genus into<br />
American continents from Eurasia. This study uses the analyses <strong>of</strong> two DNA<br />
fragments (trnL-F, ITS) <strong>of</strong> 85 North, Meso-, and South American species to show that<br />
Festuca speciation and diversification in South America was a complex process,<br />
which included several immigrations <strong>of</strong> different evolutionary lineages and their<br />
subsequent spreading along Mesoamerican mountains and tropical to temperate<br />
Andes <strong>of</strong> South America. This colonization had not the form <strong>of</strong> continuous and<br />
gradual spreading and speciation from north to south. More likely, it occurred via<br />
several long-distance dispersions from north to south and consequent local<br />
diversifications. Our analysis also indicates that morphological differentiation and<br />
inter species similarities in South America may be the result <strong>of</strong> ecological<br />
convergence rather than the manifestation <strong>of</strong> the existence <strong>of</strong> morphologically<br />
uniform evolutionary lineages. This should have implications in the systematic <strong>of</strong> the<br />
genus Festuca in South America.<br />
125