Message - 7th IAL Symposium

The 7 th International Association for Lichenology Symposium 2012
(4A-O3) Submission ID: IAL0188-00001
TOWARDS A NEW CLASSIFICATION OF TELOSCHISTACEAE
Arup U. 1 , Søchting U. 2 , Frödén P. 1
1 Botanical Museum, Lund University, Lund, Sweden
2 Section of Ecology and Evolution, Department of Biology, University of Copenhagen, Copenhagen, Denmark
The family Teloschistaceae is one of the largest families of lichen-forming fungi, probably comprising
more than 1,000 species. The traditional taxonomy of genera within this family has been based on morphology,
anatomy and chemistry. However, for at least twenty years this taxonomy has been known to be unnatural and
with genetic data at hand this has been shown several times. However, a new delimitation of natural groups has
not yet been presented for the family as a whole, but some smaller groups have been split of during the last
years. We present here a first approach towards a new delimitation of genera in the family based on analyses of
three loci. Some genera or groups are still not clearly delimited and problems remain in various groups, but for
a large part of the family new genera can be defined.
(4A-O4) Submission ID: IAL0251-00002
METABOLITE EVOLUTION IN THE LICHEN FAMILY TELOSCHISTACEAE
Søchting U. 1 , Arup U. 2 , Frödén P. 2
1 Section of Ecology and Evolution, Department of Biology, University of Copenhagen, Copenhagen, Denmark
2 Botanical Museum, Lund University, Lund, Sweden
The emerging phylogenetic structure of the large family Teloschistaceae based on DNA-data has permitted
tracking the evolution of secondary metabolites across evolutionary clades. Some large clades have a
very conserved set of chemical syndromes, while a number of smaller clades are characterized by synapomorphic
specialized metabolite characters. New metabolites are regularly discovered in Teloschistaceae, and
the structure of many compounds is yet to be clarified. At the same time several cases of metabolic losses at
different levels are disclosed. The taxonomic significance of the secondary metabolites in Teloschistaceae is
discussed.
(4A-O5) Submission ID: IAL0158-00001
DISENTANGLING THE SPECIES DIVERSITY OF CALOPLACA TH. FR. IN CHILE
Vargas R. 1 , Beck A. 2
1 Departamento de Botanica, Universidad de Concepcion, Concepcion, Chile
2 Lichenology and Bryology, Botanische Staatssammlung München, München, Germany
The lichen genus Caloplaca is cosmopolitan and includes a high number of species worldwide, with
more than 1,000 published names. In Chile, the genus has been sparsely studied, and its total number of species
along the country is not completely clear. Considering morphological, chemical and molecular data, we
studied the Caloplaca species present in the northern and central areas of Chile between 20° to 39°S. More than
1,000 specimens, both from intensive field work and herbarium material from 15 different herbaria, were studied.
We registered 35 Caloplaca species in the study area, with the inclusion of several new species. Results from
phylogenetic analysis including maximum parsimony, maximum likelihood and Bayesian inference based on ITS
sequences of Chilean and non-Chilean species reveal the presence of a monophyletic clade with high support
in the Caloplaca phylogeny that includes most of the species present in Chile.
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