Generic hyper-diversity in Stachybotriaceae.
Generic hyper-diversity in Stachybotriaceae.
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DOI：
10.3767/003158516x691582
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发表时间：
2016-06
期刊：
影响因子：
9.1
通讯作者：
Crous PW
中科院分区：
文献类型：
--
作者：
Lombard L;Houbraken J;Decock C;Samson RA;Meijer M;Réblová M;Groenewald JZ;Crous PW
最近引入的Stachybotriaceae科包括Myrothecium属、Peethambara属和Stachybotriae属。该家族的成员包括重要的植物和人类病原体，以及在工业和商业应用中用作生物降解剂和生物控制剂的几种物种。然而，在Stachybotriaceae属的边界仍然是不明确的，因为模式材料和序列数据是不容易获得的分类研究。为了解决这个问题，我们使用28 S大亚基（LSU）、内部转录间隔区和间插5.8S nrRNA（ITS）、RNA聚合酶II第二大亚基（rpb 2）、钙调蛋白（CaM A）、翻译延伸因子1-α（tef 1）和β-微管蛋白（tub 2）的部分基因序列对所有可用的类型和真实菌株进行了多位点系统发育分析。根据形态学特征，这些数据可以分辨出穗部科的33个属。其中包括九个已经建立的属Albosynnema，Alfaria，Didymostilbe，Myrothecium，Parasarcopodium，Peethambara，Septomyrothecium，Stachybocalus和Xepicula。与此同时，属名Melanopsamma、Memnoniella和Atriatospora也被重新使用。系统发育推断进一步表明，漆斑菌属和水苏属都是多系的，引入了13个新属和8个新属。
The family Stachybotriaceae was recently introduced to include the genera Myrothecium, Peethambara and Stachybotrys. Members of this family include important plant and human pathogens, as well as several species used in industrial and commercial applications as biodegraders and biocontrol agents. However, the generic boundaries in Stachybotriaceae are still poorly defined, as type material and sequence data are not readily available for taxonomic studies. To address this issue, we performed multi-locus phylogenetic analyses using partial gene sequences of the 28S large subunit (LSU), the internal transcribed spacer regions and intervening 5.8S nrRNA (ITS), the RNA polymerase II second largest subunit (rpb2), calmodulin (cmdA), translation elongation factor 1-alpha (tef1) and β-tubulin (tub2) for all available type and authentic strains. Supported by morphological characters these data resolved 33 genera in the Stachybotriaceae. These included the nine already established genera Albosynnema, Alfaria, Didymostilbe, Myrothecium, Parasarcopodium, Peethambara, Septomyrothecium, Stachybotrys and Xepicula. At the same time the generic names Melanopsamma, Memnoniella and Virgatospora were resurrected. Phylogenetic inference further showed that both the genera Myrothecium and Stachybotrys are polyphyletic resulting in the introduction of 13 new genera with myrothecium-like morphology and eight new genera with stachybotrys-like morphology.