文献类型： 外文期刊

第一作者： Liu, S.

作者： Liu, S.;Xu, T. M.;Song, C. G.;Sun, Y. F.;Cui, B. K.;Shen, L. L.;Gao, N.;Wu, D. M.

作者机构：

关键词： 16 new taxa; brown-rot fungi; macro-fungi; molecular clock; multi-gene; phylogeny

期刊名称：MYCOSPHERE （ 影响因子：14.6； 五年影响因子：5.0 ）

ISSN： 2077-7000

年卷期： 2023 年 14 卷 1 期

页码：

收录情况： SCI

摘要： Brown-rot fungi are an important group of wood-decaying fungi, aside from the ecological significance as decomposer and plant pathogens in forest ecosystems, some species are edible and medicinal fungi, which have important economic value. Recent taxonomic and phylogenetic studies shown that Polyporales contains the majority of brown-rot fungi and forms 14 family-level lineages. However, its species composition and divergence time are not fully understood. In this study, we inferred phylogeny and divergence times of the brown-rot fungi within the Polyporales. The phylogenetic relationships of the brown-rot fungi within the Polyporales are reconstructed based on DNA sequences of multiple loci including the internal transcribed spacer regions (ITS), the large subunit of nuclear ribosomal RNA gene (nLSU), the small subunit of mitochondrial rRNA gene (mtSSU), the small subunit of nuclear ribosomal RNA gene (nuSSU), the largest subunit of RNA polymerase II gene (RPB1), the second largest subunit of RNA polymerase II gene (RPB2) and the translation elongation factor 1-alpha gene (TEF1). Molecular clock analysis for the divergence time of the brown-rot fungi within the Polyporales is performed using BEAST based on the seven DNA fragments (ITS, nLSU, mtSSU, nuSSU, RPB1, RPB2, TEF1). Phylogenetic and molecular clock analyses showed that Polyporales appeared in the early Cretaceous (about 141.55 Mya); species of brown-rot fungi within Polyporales gathered and formed 14 family-level lineages, and the differentiation with white-rot fungi occurred in the early Cretaceous (about 119.25 Mya); the brown-rot families of Polyporales were centralized differentiation in the middle Cretaceous (about 81.48-99.54 Mya). Through years of extensive field trip investigations, combined with relevant literature and databases, we concluded that there are 383 brown-rot fungi species within the Polyporales worldwide. Based on the evidence of morphological characters and molecular phylogenetic analyses, 383 brown-rot fungi species within Polyporales belonging to 14 families and 69 genera are recognized, including two new genera, viz., Eucalyptoporia and Resupinopostia; nine new species, viz., Daedalea submodesta, D. vinacea, Eucalyptoporia tasmanica, Fuscopostia avellaneus, F. persicinus, F. tomentosa, Niveoporofomes orientalis, Rhodoantrodia subtropica and Resupinopostia sublateritia; and five new combinations, viz., Cystidiopostia simanii, Osteina subundosa, Resupinopostia lateritia, Spongiporus japonica and S. persicinus. Additionally, an annotated checklist of the species composition, geographical distribution, host trees and some morphological characteristics of brown-rot fungi within Polyporales is given, based on the field trip investigations and published papers.

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