Global diversity and phylogeny of Fuscoporia (Hymenochaetales, Basidiomycota)
Qian Chen
Abstract
The genus Fuscoporia is characterized by annual to perennial, resupinate to pileate basidiocarps, a dimitic hyphal system with generative hyphae bearing crystals, presence of hymenial setae in most species, and hyaline, thin-walled, smooth basidiospores. To explore the phylogenetic positions of Fuscoporia species, we performed a comprehensive study by using molecular data based on global specimens: a total of 105 specimens including 41 species of Fuscoporia were analyzed, ITS (95 with 46 new), nLSU (94 with 49 new), RPB2 (49 with 34 new) and TEF1 (73 with 52 new) sequences were used to reconstruct Fuscoporia phylogeny. According to our phylogenetic analyses inferred from the nLSU and ITS+nLSU+RPB2+TEF1 datasets, Fuscoporia comprises six distinct groups (F. contigua group, F. ferrea group, F. ferruginosa group, F. gilva group, F. torulosa group and F. viticola group) and three ungrouped species (F. acutimarginata, F. discipes and F. insolita). Nine new species, Fuscoporia australasica, F. australiana, F. bambusae, F. chinensis, F. eucalypti, F. karsteniana, F. plumeriae, F. shoreae and F. subchrysea, are described. Two new combinations, Fuscoporia bambusicola