Global diversity and phylogeny of Onnia (Hymenochaetaceae) species on gymnosperms

0480365 - BC 2018 RIV US eng J - Článek v odborném periodiku
Ji, X.H. - He, S.H. - Chen, J.J. - Si, J. - Wu, F. - Zhou, L. W. - Vlasák, Josef - Tian, X. M. - Dai, Y. C.
Global diversity and phylogeny of Onnia (Hymenochaetaceae) species on gymnosperms.
Mycologia. Roč. 109, č. 1 (2017), s. 27-34. ISSN 0027-5514. E-ISSN 1557-2536
Institucionální podpora: RVO:60077344
Klíčová slova: maximum-likelihood * mixed models * basidiomycota * polyporaceae
Obor OECD: Mycology
Impakt faktor: 2.762, rok: 2017

Onnia includes white rotting polypores with annual basidiocarps, a duplex context, monomitic hyphal structure, hymenial setae, and hyaline, thin-walled, smooth basidiospores. Specimens of Onnia, originating mainly from East Asia, Europe, and North America, were studied using both morphology and phylogenetic analyses. Our concatenated data set was derived from 25 collections and included (i) 25 nuc rDNA internal transcribed spacer region sequences (ITS1-5.8S-ITS2 = ITS), 17 generated in this study, and (ii) 14 nuc rDNA 28S rDNA sequences, including the D1-D2 domains, 11 of them generated in this study. The resulting maximum likelihood and Bayesian phylogenies recovered all sampled collections of Onnia as a well-supported Glade. In this Glade, three previously accepted species, viz., Onnia leporina, O. tomentosa, and O. triquetra, received strong support, whereas three additional lineages with strong support represent the new species described in this paper, O. subtriquetra, O. microspora, and O. tibetica. Of the six Onnia species occurring on gymnosperms, O. tomentosa and O. leporina grow mainly on Picea and have circumboreal distribution in the Northern Hemisphere. In contrast, other species that mostly grow on Pinus are geographically restricted to limited regions, viz., O. triquetra in Europe, O. subtriquetra in North America, and O. microspora and O. tibetica in Asia.
Trvalý link: http://hdl.handle.net/11104/0276148