Crassisporus gen. nov. (Polyporaceae, Basidiomycota) evidenced by morphological characters and phylogenetic analyses with descriptions of four new species

Crassisporus gen. nov. (Polyporaceae, Basidiomycota) evidenced by morphological characters and phylogenetic analyses with descriptions of four new species
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DOI:
10.3897/mycokeys.57.38035
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发表时间:
2019-08
期刊:
影响因子:
3.3
通讯作者:
Cui Bao-Kai
Cui Bao-Kai
中科院分区:
生物学2区
文献类型:
--
作者:
Ji Xing;Wu Dong-Mei;Liu Shun;Si Jing;Cui Bao-Kai

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摘要一新的多孔性木生真菌属--Crassiporus gen.Nov.,是在形态特征和分子证据的基础上提出的。该属的特征是一年生的生长习性,流出反折到具绒毛的担子果具淡黄棕色到黄棕色,同心带状或具槽,绒毛表面,三分生菌丝系统具夹住的生殖菌丝,组织在KOH中变暗,长圆形到宽椭圆形,透明,光滑,和稍厚壁的担孢子。基于ITS+nLSU序列的系统发育分析表明,Crassiporus属于核心多孔型分支。多孔菌科代表性分类群的ITS+nLSU+mtSSU+EF1-α+RPb2序列组合数据表明,Crassiporus与单孔菌(Haplopus)聚在一起,但形成一个单系谱系。此外,还描述了Crassiporus的四个新种:C.imbricatus、C.leucporus、C.macporus和C.microporus。
Abstract A new poroid wood-inhabiting fungal genus, Crassisporus gen. nov., is proposed on the basis of morphological characters and molecular evidence. The genus is characterized by an annual growth habit, effused-reflexed to pileate basidiocarps with pale yellowish brown to yellowish brown, concentrically zonate or sulcate, and velutinate pileal surface, a trimitic hyphal system with clamped generative hyphae, tissues turning to dark in KOH, oblong to broadly ellipsoid, hyaline, smooth, and slightly thick-walled basidiospores. Phylogenetic analysis based on ITS+nLSU sequences indicate that Crassisporus belongs to the core polyporoid clade. The combined ITS+nLSU+mtSSU+EF1-α+RPB2 sequences dataset of representative taxa in the Polyporaceae demonstrate that Crassisporus is grouped with Haploporus but forms a monophyletic lineage. In addition, four new species of Crassisporus, C. imbricatus, C. leucoporus, C. macroporus, and C. microsporus are described.
DOI: 10.1093/bioinformatics/14.9.817
发表时间: 1998-01-01
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