Taxonomy And Phylogeny Of Fomitiporia In China

Fomitiporia is a worldwide genus and causes a white decay of the wood.Fomitiporia has been called the Phellinus robustus complex.So far 51 species of Fomitiporia have been reported in the world,19 of these species in this genus have been recorded in China.Taxonomic and phylogenetic studies were carried out on 282 specimens of Chinese Fomitiporia.These specimens were collected by the team of the Institute of Microbiology,Beijing Forestry University in the past twelve years.Molecular phylogenetic analyses were carried out based on the multigenes(ITS,nLSU,tefl,rpb2),and Maximum Likelihood(ML),Maximum Parsimony(MP)and Bayesian Analysis(BI)were applied to constructed phylogenetic trees.The results show that the phylogenetic relationships of Fomitiporia species were closely related to the geographic distributions of Fomitiporia species,and ITS and rpb2 were suitable for distinguished the species of Fomitiporia.In study,the results of morphological studies showed that the distinctions of Fomitiporia and its related genera were as follows:basidiocarps pileate or resupinate;pore surface yellowish brown to dark brown;hyphal system dimitic;basidiospores thick-walled,smooth,ellipsoid to subglobose,dextrinoid in Melzer's reagent,strongly cyanophilous.The differences among species of Fomitiporia were as follows:the shapes and colors of fruitbody;the presence or absence of setae and cystidioles and their sizes and shapes;the shapes and the sizes of basidiospores.Seven new species have been discribed in study:Fomitiporia alpina,F.gaoligongensis,F.hainaniana,F.norbulingka,F.subhippophaeicola,F.subrobusta and F.subtropica.The illustrated descriptions of 19 species in Fomitiporia from China were given.Furthermore,a key to the accepted species of Fomitiporia in China and the pictures of fruitbodies for each species were supplied.