Shen Shan, Liu Shi-Liang, Zhou Li-Wei
State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China.
University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
IMA Fungus. 2023 Jun 6;14(1):11. doi: 10.1186/s43008-023-00116-7.
The genus is a special and crucial taxonomic rank compared with others above the species level, because a species has to be placed in a certain genus instead of any other higher ranks. With more and more new species being described, the placements of their generic position are sometimes incorrect due to the simple phylogenies resulting from inappropriate sampling. Here, we focus on the taxonomy of a small wood-inhabiting fungal genus Hyphodermella. With the most comprehensive sampling to date, the phylogenetic position of Hyphodermella within Phanerochaetaceae is rearranged by employing the same ITS and nLSU regions as in previous studies and also the ITS, nLSU, rpb1, rpb2 and tef1α regions. Three species are excluded from Hyphodermella: H. poroides is placed in a newly introduced monotypic genus Pseudohyphodermella, while H. aurantiaca and H. zixishanensis are transferred to Roseograndinia. Hyphodermella suiae is described as a new species from South China and Vietnam. Keys to eight species in Hyphodermella and five in Roseograndinia are provided. Beyond solving the taxonomic issue of Hyphodermella itself, the current study also aims to suggest that all fungal taxonomists especially beginners should keep in mind to sample as many comprehensive taxa as possible in phylogenetic analyses.
与物种水平以上的其他分类等级相比，属是一个特殊且关键的分类等级，因为一个物种必须被归入某一属，而不是其他任何更高的等级。随着越来越多新物种被描述，由于采样不当导致系统发育简单，它们的属级位置有时会被错误放置。在此，我们聚焦于一个小型木生真菌属——皮盘菌属（Hyphodermella）的分类学研究。通过迄今为止最全面的采样，利用与先前研究相同的ITS和nLSU区域以及ITS、nLSU、rpb1、rpb2和tef1α区域，重新排列了皮盘菌属在拟层孔菌科（Phanerochaetaceae）中的系统发育位置。三个物种被排除在皮盘菌属之外：多孔皮盘菌（H. poroides）被置于一个新引入的单型属——假皮盘菌属（Pseudohyphodermella）中，而橙黄皮盘菌（H. aurantiaca）和紫溪山皮盘菌（H. zixishanensis）被转移到玫瑰大孔菌属（Roseograndinia）。华南和越南的猪皮盘菌（Hyphodermella suiae）被描述为一个新物种。提供了皮盘菌属八个物种和玫瑰大孔菌属五个物种的检索表。除了解决皮盘菌属本身的分类问题外，当前研究还旨在建议所有真菌分类学家，尤其是初学者，在系统发育分析中应牢记尽可能多地采样全面的分类群。
