PDF(Pubmed)
Abstract：
The genus Sidera (Hymenochaetales, Basidiomycota) comprises white-rot, mono- or dimitic fungi with poroid or hydnoid hymenophore. It has a worldwide distribution albeit with fewer species present in the Southern Hemisphere. Although recent studies revealed the existence of several new Sidera species, there are still taxonomic inconsistencies and obscure phylogenetic relationships amongst certain taxa of the genus. In this work, a large number of Sidera collections were used to obtain an updated phylogeny, based on ITS and 28S rDNA sequences by including new material from Mediterranean Europe. The monophyly of the genus was strongly supported and all species with poroid hymenophore formed a highly-supported lineage with two major subclades. In total, 23 putative species were recognised. Amongst those, five are considered to possibly represent entities new to science, but further work is required since they are represented by single specimens or environmental sequences. Examined collections originally named S.lenis from southern Europe were grouped within S.vulgaris. Similarly, several collections under various names were hereby identified as S.vulgaris, including those of the recently described species S.tibetica. Furthermore, a critical discussion (based on morphoanatomical findings) is made on the key features that could be used to distinguish S.lenis from S.vulgaris.
摘要：
Sidera属(Hymenochaetales,担子菌）包括白腐病，单-或二聚真菌，具有孔状或囊状膜。尽管南半球的物种较少，但它在全球范围内分布。尽管最近的研究揭示了几种新的Sidera物种的存在，该属的某些分类群之间仍然存在分类不一致和模糊的系统发育关系。在这项工作中,大量的Sidera集合被用来获得更新的系统发育，基于ITS和28SrDNA序列，包括来自地中海欧洲的新材料。该属的单系得到了强有力的支持，所有具有多孔膜细胞的物种都形成了具有两个主要子分支的高度支持的谱系。总的来说,确认了23种推定物种。其中，五个被认为可能代表新的科学实体，但是需要进一步的工作，因为它们由单个标本或环境序列表示。最初来自南欧的名为S.lenis的经过检查的收藏被归入S.vulgaris。同样，几个不同名称的集合被确定为S.vulgaris，包括那些最近描述的物种。此外，对可用于区分S.lenis和S.vulgaris的关键特征进行了批判性讨论（基于形态解剖学发现）。
