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An evaluation of the monophyly of Massarina based on ribosomal DNA sequences

机译：基于核糖体DNA序列评估马萨里纳的单性

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The monophyletic status of the genus Massarina was evaluated on the basis of phylogenetic analysis of the partial small subunit gene (SSU), internal transcribed spacers (ITS 1 & 2), and 5.8S gene sequences of the ribosomal DNA. Species of Massarina used in the study clustered into two distinct clades with high bootstrap support in trees generated from maximum parsimony, weighted parsimony, maximum likelihood, and neighbor-joining analyses. The hypothesis that Massarina species belong to a phylogenetically monophyletic group is rejected. Species with narrowly fusiform ascospores form a monophyletic clade with Lophiostoma, a genus highly similar in morphology. The five species currently accepted in Massarina with such spore morphology are here transferred into the genus Lophiostoma. Massarina species with broadly fusiform to ellipsoidal ascospores are retained as Massarina s. str., lectotypified by M. eburnea. Massarina walkeri is presently excluded from both Massarina and Lophiostoma. The transfer of M. papulosa to a new genus Oletheriostrigula is verified. [References: 53]
机译：根据部分小亚基基因（SSU），内部转录间隔区（ITS 1和2）和核糖体DNA的5.8S基因序列的系统发育分析，评估了Massarina属的单系状态。本研究中使用的Massarina物种在最大简约度，加权简约度，最大似然度和邻居加入分析生成的树中聚集为两个具有高自举支持的不同进化枝。 Massarina物种属于系统发生单系分类的假设被驳回。具有狭纺锤形子囊孢子的物种形成了与赘皮瘤的单系进化枝，该属在形态上非常相似。目前在马萨里纳（Massarina）接受的具有这种孢子形态的5个物种被转移到Lophiostoma属中。具有广泛梭形至椭圆形子囊孢的马萨里纳种类保留为马萨里纳氏菌。 str。，由M. eburnea选型。 Massarina walkeri目前被排除在Massarina和Lophiostoma之外。验证了青枯菌向新的油橄榄属的转移。 [参考：53]

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