Resolving the phylogenetic and taxonomic status of dark-spored teleomorph genera in the Botryosphaeriaceae.
Resolving the phylogenetic and taxonomic status of dark-spored teleomorph genera in the Botryosphaeriaceae.
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DOI：
10.3767/003158508x340742
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发表时间：
2008-12
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：
Phillips AJ;Alves A;Pennycook SR;Johnston PR;Ramaley A;Akulov A;Crous PW
葡萄孢子菌科中的物种是常见的植物病原菌和腐生菌，发现于各种主要木质寄主上。真胚层通常有透明的、无隔的子囊孢子。然而，已有一些报道带有棕色的子囊孢子，它们的分类地位尚不确定。用多基因方法(SSU、ITS、LSU、EF1-α和β-微管蛋白)分析了‘灰霉病菌’真性体及其近缘无性种的正确系统发育位置。具有1隔子囊孢子或2隔子囊孢子的物种被恢复为棕黄色子囊孢子(Neodeightonia或Phaeobotryon)。褐葡萄孢子菌是恢复的物种，具有棕色的无隔子囊孢子，两端都有细尖。明确了Sphaeropsis的地位，证明其为Phaeobotryosphaeria的无性型。介绍了两个新属，即Barriopsis属和Spencermartinsis属，即Barriopsis属和Spencermartinsis属，其中Barriopsis属为具棕色无细尖的无隔子囊孢子的物种，Spencermartinsis属为具棕色的1隔子囊孢子两端具细尖的物种。Dothiorella的种有棕色的1隔子囊孢子，与Spencermartinia不同，因为没有细尖。根据变质体的形态特征，也可以将这六个属区分开来。虽然Dothidotthia以前被归入Botryosphaeriaceae，但它被证明属于Pleosporales，并引入了新的Dothidotthiaceae科来适应它。
Species in the Botryosphaeriaceae are common plant pathogens and saprobes found on a variety of mainly woody hosts. Teleomorphs typically have hyaline, aseptate ascospores. However, some have been reported with brown ascospores and their taxonomic status is uncertain. A multi-gene approach (SSU, ITS, LSU, EF1-α and β-tubulin) was used to resolve the correct phylogenetic position of the dark-spored ‘Botryosphaeria’ teleomorphs and related asexual species. Neodeightonia and Phaeobotryon are reinstated for species with brown ascospores that are either 1-septate (Neodeightonia) or 2-septate (Phaeobotryon). Phaeobotryosphaeria is reinstated for species with brown, aseptate ascospores that bear an apiculus at either end. The status of Sphaeropsis is clarified and shown to be the anamorph of Phaeobotryosphaeria. Two new genera, namely Barriopsis for species having brown, aseptate ascospores without apiculi and Spencermartinsia for species having brown, 1-septate ascospores with an apiculus at either end are introduced. Species of Dothiorella have brown, 1-septate ascospores and differ from Spencermartinsia in the absence of apiculi. These six genera can also be distinguished from one another based on morphological characters of their anamorphs. Although previously placed in the Botryosphaeriaceae, Dothidotthia, was shown to belong in the Pleosporales, and the new family Dothidotthiaceae is introduced to accommodate it.