AUTHOR=Wang Chao-Ge , Vlasák Josef , Jin Can , Si Jing 

TITLE=Phylogeny and diversity of Rigidoporus (Hymenochaetales, Basidiomycota), including three new species from Asia

JOURNAL=Frontiers in Cellular and Infection Microbiology

VOLUME=13

YEAR=2023

URL=https://www.frontiersin.org/journals/cellular-and-infection-microbiology/articles/10.3389/fcimb.2023.1216277

DOI=10.3389/fcimb.2023.1216277

ISSN=2235-2988

ABSTRACT=<p>Phylogenetic and morphological analyses on <italic>Rigidoporus</italic> were carried out. The genus <italic>Rigidoporus</italic> (<italic>Hymenochaetales</italic>, <italic>Basidiomycota</italic>), typified by <italic>R. microporus</italic> (Fr.) Overeem. (synonym <italic>Polyporus micromegas</italic> Mont.), was established by Murrill in 1905. The genus is mainly characterized by annual to perennial, resupinate, effused-reflexed to pileate or stipitate basidiomata with azonate or concentrically zonate and sulcate upper surface, a monomitic to pseudo-dimitic hyphal structure, simple-septate generative hyphae, and ellipsoid to globose basidiospores. Phylogeny on species of the genus is reconstructed with two loci DNA sequences including the internal transcribed spacer regions and the large subunit. Three new species in <italic>Rigidoporus</italic> are described and illustrated from Asia, and one new combination in the genus is proposed. The main morphological characteristics of the currently accepted species of <italic>Rigidoporus</italic> are provided.</p>