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Myllys, L./ Pino-Bodas, R./ Velmala, S./ Wang, L.-S./ Goward, T. 2016: [Abstract:] Infrageneric classification and biogeography of the genus Bryoria based on phylogenetic analyses of six gene loci. - In: : IAL8 Abstracts. . pp. 26. [RLL List # 249 / Rec.# 39266]
Abstract: Species within the genus Bryoria (Parmeliaceae, Lecanoromycetes) are distributed mainly in boreal to north temperate regions of Eurasia and North America, but occur also in mountains of southeast Asia, Australasia and Africa. Here we use information on six gene regions – three nuclear protein-coding markers (Mcm7, GAPDH and Tsr1), two nuclear ribosomal markers (ITS and IGS), and a partial mitochondrial small subunit – to examine infrageneric classification and putative phylogeographic structuring of the genus. Our analyses support the monophyly of sections Americanae, Divaricatae, Implexae and Tortuosae, while section Bryoria is polyphyletic. Addition of gene regions generally resulted in improved support values for the nodes. Monotypic sections Americanae and Tortuosae are genetically distinct from the remaining taxa and appear as basal lineages in the genus. We discovered a clear phylogeographic pattern in some of the lineages. In section Implexae the species are divided into two subclades based on their geographic distribution: the first subclade appears to occur exclusively in North America while the second subclade is intercontinental. Section Bryoria is here provisionally divided into two sections, i.e., section Bryoria 1, which includes species restricted to southeast Asia and/or northwest North America, and section Bryoria 2, which contains mostly broadly distributed species.
URL: http://ial8.luomus.fi/wp-content/uploads/2014/09/IAL8_abstracts3007.pdf
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