Phylogeny and diversity of the morphologically similar polypore genera Rigidoporus, Physisporinus, Oxyporus, and Leucophellinus

Abstract

Rigidoporus and its morphologically similar genera Physisporinus, Oxyporus, and Leucophellinus, which include some forest pathogens and medicinal species, are very important groups of wood-decaying fungi. Species of these genera have not only ecological functions, but also economic importance. Phylogenetic and taxonomic studies on taxa in these genera were carried out. Inferred from phylogenies based on DNA sequences of the nuc rDNA ITS1-5.8S-ITS2 (internal transcribed spacer [ITS]) and D1-D2 domains of nuc 28S rDNA, 36 species sampled that traditionally belong to Physisporinus, Rigidoporus, Leucophellinus, and Oxyporus are nested mostly in eight lineages. Of these lineages, five (including four genera of Physisporinus, Emmia, Flaviporus, and Flavodon and one taxon "R. hypobrunneus") belong to Polyporales and three (including the genera Rigidoporus, Bridgeoporus, and Leucophellinus) belong to Hymenochaetales. Rigidoporus and Oxyporus are merged because the type species of both genera are nested in a single lineage within Hymenochaetales. Some taxon previously placed in Ceriporia and Oxyporus are transferred to Emmia and Flavodon, respectively, on the basis of current phylogeny. Utilizing a combination of the morphological and phylogenetic evidence, 16 new combinations in Bridgeoporus, Emmia, Flaviporus, Flavodon, Rigidoporus, and Physisporinus are proposed. Five new species, Physisporinus crataegi, P. lavendulus, P. subcrocatus, P. tibeticus, and Rigidoporus submicroporus, are recognized from China. Illustrated descriptions of these novel species are provided. Three taxa are treated at the generic level of Physisporinus because of limited samples.

Genome sequencing of Rigidoporus microporus provides insights on genes important for wood decay, latex tolerance and interspecific fungal interactions

“…Our multigene phylogenetic analysis clearly showed that R. microporus is nested within the representatives of the order Hymenochaetales. This observation agrees with www.nature.com/scientificreports www.nature.com/scientificreports/ the results of the previous phylogenetic reconstructions 3,69 . However, the placement of R. microporus within the order of Hymenochaetales might require some nomenclatural rearrangements, as the type species of the genus Rigidoporus belongs to the order Polyporales 8 .…”

Flavoceraceomyces(NOM. PROV.) (Irpicaceae, Basidiomycota), encompassingCeraceomyces serpensandCeriporia sulphuricola, and a new resupinate species,F. damiettense, found onPhoenix dactylifera(date palm) trunks in the Nile Delta of Egypt

“…Sequence data generated in the present study is indicated in bold font. Sequence sources are indicated as follows: CH (Chen et al 2020); FL (Floudas and Hibbett 2015); GA (Garzoli et al, unpublished); GO (Gómez-Montoya et al 2017); JGI (Joint Genome Institute); JI (Jia et al 2014); JN (Jung et al 2018); JS (Justo and Hibbett 2011); VU (Vu et al 2019); WU (Wu et al 2017); YO (Li et al 2015); YU (Yuan et al 2016). lset applyto=(1,3,4,5) nst=6 rates=invgamma ngammacat=4; lset applyto=(6) nst=6 rates=gamma ngammacat=4; lset applyto=(2) nst=2 rates=invgamma ngammacat=4; lset applyto= 7 1.49914,6.55845,2.31922,0.676263,14.4049, 1); prset applyto=(4)…”

Dentipellis tasmanica sp. nov. (Hericiaceae, Basidiomycota) from Australia

“…A CTAB rapid plant genome extraction kit (Aidlab Biotechnologies, Beijing) was used to obtain PCR products from dried specimens, according to the manufacturer’s instructions with some modifications ( Wu et al 2017 ). The primer pair ITS4 and ITS5 was used for amplification of the ITS region ( White et al 1990 ), while the primer pair LR0R and LR7 ( http://www.biology.duke.edu/fungi/mycolab/primers.htm ) was used for providing the D1-D4 regions of the 28S ( https://unite.ut.ee/primers.php ).…”