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Pseudocosmospora, a new genus to accommodate Cosmospora vilior and related species

机译：Pseudocosmospora，一种新的属，可以容纳弱毒的Cosmospora和相关物种

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摘要

Cosmospora sensu Rossman accommodated nectroid fungi with small, reddish, smooth, thin-walled perithecia but recently was found to be polyphyletic and has been segregated into multiple genera. Not all cosmospora-like fungi have been treated systematically. Some of these species include C. vilior and many specimens often labeled "Cosmospora sp." The objectives of this research were to establish the identity of C. vilior through epitypication using a recent collection that agrees with the type specimen in morphology, host and geography and to determine its phylogenetic position within Cosmospora sensu lato and the Nectriaceae. A multilocus phylogeny was constructed based on six loci (ITS, LSU, MCM7, rpb1, tef1, tub) to estimate a phylogeny. Results from the phylogenetic analyses indicated that C. vilior forms a monophyletic group with other cosmospora-like fungi that have an acremonium-like anamorph and that parasitize Eutypa and Eutypella (Ascomycota, Sordariomycetes, Xylariales, Diatrypaceae). The group is phylogenetically distinct from other previously segregated genera. A new genus, Pseudocosmospora, is described to accommodate the type species, P. eutypellae, and nine additional species in this clade.
机译：感觉Cosmospora sensu Rossman容纳了带有小的，带红色的，光滑的，薄壁的皮膜的花蜜真菌，但是最近发现它是多系的，并且被分成多个属。并非所有的类孢子菌都得到了系统的治疗。其中一些物种包括C. vilior和许多标有“ Cosmospora sp。”的标本。这项研究的目的是通过使用与形态，寄主和地理上的类型标本相符的最新标本，通过表型鉴定来确定C. vilior的身份，并确定其在Cosmospora sensu lato和Nectriaceae中的系统发生位置。基于六个基因座（ITS，LSU，MCM7，rpb1，tef1，tub）构建了多基因座系统发育估计系统发育。系统发育分析的结果表明，C。vilior与其他具有孢子菌样无性型并寄生有Eutypa和Eutypella（子囊菌，Sordariomycetes，Xylariales，Diatrypaceae）的大孢子状真菌形成了一个单系群。该族在系统发育上不同于其他先前分离的属。描述了一个新属，Pseudocosmospora，可以容纳该种中的P. eutypellae类和另外九种。

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