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A multigene phylogeny of the Dothideomycetes using four nuclear loci

机译:使用四个核基因座的Dothideomycetes的多基因系统发育。

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We present an expanded multigene phylogeny of the Dothideomycetes. The final data matrix consisted of four loci (nuc SSU rDNA, nuc LSU rDNA, TEF1, RPB2) for 96 taxa, representing five of the seven orders in the current classification of Dothideomycetes and several outgroup taxa representative of the major clades in the Pezizomycotina. The resulting phylogeny differentiated two main dothideomycete lineages comprising the pseudoparaphysate Pleosporales and aparaphysate Dothideales. We propose the subclasses Pleosporomycetidae (order Pleosporales) and Dothideomycetidae (orders Dothideales, Capnodiales and Myriangiales). Furthermore we provide strong molecular support for the placement of Mycosphaerellaceae and Piedraiaceae within the Capnodiales and introduce Davidiellaceae as a new family to accommodate species of Davidiella with Cladosporium anamorphs. Some taxa could not be placed with certainty (e.g. Hysteriales), but there was strong support for new groupings. The clade containing members of the genera Botryosphaeria and Guignardia resolved well but without support for any relationship to any other described orders and we hereby propose the new order Botryosphaeriales. These data also are consistent with the removal of Chaetothyriales and Coryneliales from the Dothideomycetes and strongly support their placement in the Eurotiomycetes.
机译:我们提出了一个扩展的多基因种系的系统发育。最终数据矩阵由96个分类单元的四个基因座(nuc SSU rDNA,nuc LSU rDNA,TEF1,RPB2)组成,代表了当前分类的7个顺序中的5个,以及几个代表了Pezizomycotina主要进化枝的外群分类单元。所形成的系统发育区分了两个主要的十二生丝球菌谱系,包括拟寄生的草枯菌和草状的寄生虫。我们提出了子类(Pleosporales)和Dothideomycetidae(Dothideales,Capnodiales和Myriangiales)的子类。此外,我们提供了分子生物学,以支持将菌丝藻科和钩形藻科放置在Cap虫内,并将David桐科作为一个新的科目引入,以容纳带无孢子藻的David桐科物种。不能确定地放置某些分类单元(例如,歇斯底里),但是对新的分类有很强的支持。包含Botryosphaeria和Guignardia属成员的进化枝解析得很好,但是不支持与其他描述的订单有任何关系,我们在此提出新的Botryosphaeriales订单。这些数据也与从多角菌纲中去除了甲壳纲和棒状纲一致,并有力地支持了它们在欧洲纲目中的放置。

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