The white-rotting genus Phanerochaete is polyphyletic and distributed throughout the phleboid clade of the Polyporales (Basidiomycota)
The white-rotting genus Phanerochaete is polyphyletic and distributed throughout the phleboid clade of the Polyporales (Basidiomycota)
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DOI：
10.1007/s13225-010-0031-7
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发表时间：
2010-05-01
期刊：
影响因子：
20.3
通讯作者：
Hallenberg, Nils
中科院分区：
文献类型：
--
作者：
Wu, Sheng-Hua;Nilsson, Henrik R.;Hallenberg, Nils
传统上，根据子实体的大体形态和菌丝结构、囊状孢子和孢子的性质，对革菌属（多孔菌目，担子菌门）进行了界定。然而，最近几项基于分子数据的研究表明，该属是多系的，目前的限制，虽然它的大多数物种被发现在多孔菌目的静脉分支。为了进一步了解该属，从45个以前未测序的革菌属物种的核核糖体DNA大亚基中获得了54个新序列，并与静脉分支中大量选择的分类群一起进行了分析。结果表明，有一个很好的支持，包括模式种绒毛革菌（目前公认的属型名称，Thelephora alnea）的核心组。一些卫星属的代表，包括Hjortstamia，Phlebiopsis，和Rhizophaete，被发现在紧挨的拓扑学上的邻属。在核心群之外，但仍然在Phlebioid分支内的是几个分类群，被一些作者称为Rhizophaete的成员，但在这里被分配到至少五个不同的单系分支。葡萄生刺毛革菌在膜壳目中被发现，并且显示出与部分共生的里肯氏菌科具有系统发生亲缘关系。新组合Ginnsia viticola，Hjortstamia brunneocystidiata，H. laxa和Phlebiopsis lamprocystidiata。一个更密集的分类和基因采样的phleboid分支将需要解决目前被称为刺毛纲的许多物种的精确的分类隶属关系，和许多命名的变化无疑是隐约可见的地平线上。
The genus Phanerochaete (Polyporales, Basidiomycota) has traditionally been delimited based on the gross morphology of the fruiting body and on the nature of the hyphal structure, cystidia, and spores. However, several recent studies based on molecular data indicate that the genus is polyphyletic as presently circumscribed, although most of its species are found in the phlebioid clade of the Polyporales. To further our understanding of the genus, 54 new sequences from the large subunit of the nuclear ribosomal DNA of 45 previously unsequenced Phanerochaete species were obtained and analyzed jointly with a large selection of taxa in the phlebioid clade. The results show that there is a well-supported Phanerochaete core group that includes the type species Phanerochaete velutina (the currently accepted name of the generic type, Thelephora alnea). Representatives of a few satellite genera, including Hjortstamia, Phlebiopsis, and Rhizochaete, are found in the immediate topological vicinity of Phanerochaete.Outside the core group but still within the phlebioid clade are several taxa that have been referred to as members of Phanerochaete by some authors but that are here assigned to at least five different monophyletic clades. Phanerochaete viticola is found in the Hymenochaetales and is shown to have phylogenetic affinities to the partially symbiotic Rickenellaceae. A new genus, Ginnsia, is erected for this species, and the new combinations Ginnsia viticola, Hjortstamia brunneocystidiata, H. laxa, and Phlebiopsis lamprocystidiata are proposed. A denser taxon and gene sampling in the phleboid clade will be needed to settle the precise taxonomic affiliation of many of the species presently referred to as Phanerochaete, and numerous nomenclatural changes are doubtlessly looming on the horizon.