Abstracts, XIV OPTIMA Meeting, Palermo (Italy) , 9-15

XIV OPTIMA Meeting, Palermo (Italy), 9-15 September 2013
Phylogeny of alectorioid lichens (Parmeliaceae, Lecanoromycetes) with special
emphasis on Bryoria sect. Implexae
BOLUDA C. G., DIVAKAR P. K., RICO V. J., CRESPO A., HAWKSWORTH D. L.
Dept. de Biología Vegetal II, Fac. de Farmacia, Univ. Complutense de Madrid, España. carlos.g.boluda@gmail.com
The alectorioid lichens form a morphological group in Parmeliaceae the phylogenetic relationships
of wich are still unclear; the concept we are using here includes Alectoria, Bryocaulon, Bryoria,
Nodobryoria, Oropogon, Pseudephebe and Sulcaria. The species are fruticose, from erect to pendent
and with cylindrical thalli, a hard cortex, and a lax medulla. Most species in the group usually lack sexual
structures and morphological variability is scarce. Moreover, in some groups, as in Bryoria, species
have high intraspecific variability and there are not uncomonly cases where one single specimen shows
intermediate characters of several species. We are focusing this investigation in the section Implexae
of this genus including Bryoria chalybeiformis, B. capillaris, B. glabra, B. implexa, B. fuscescens, B.
lanestris and B. subcana.
In this contribution we present a multigenic phylogenetic reconstruction using ITS, LSU nrDNA,
SSU mtDNA, and single copy protein coding gene MCM7 of more than 50 species.
Preliminary results reveal: (a) the alectorioid lichens are split into two independent lineages, (b)
the genera are monophyletic, and (c) within Bryoria sect Implexae the most common European
taxa are conspecific.
101