Reevaluating Cryphonectriaceae and allied families in Diaporthales
Reevaluating Cryphonectriaceae and allied families in Diaporthales
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重新评估Diaporthales中的Cryphonectriaceae和相关科
DOI：
10.1080/00275514.2019.1698925
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发表时间：
2020-02-22
期刊：
影响因子：
2.8
通讯作者：
Crous, Pedro W.
中科院分区：
文献类型：
--
作者：
Jiang, Ning;Fan, Xinlei;Crous, Pedro W.
摘要透孔菌目（Diaporthales）包括许多重要的植物病原真菌科，如臭名昭著的栗疫病菌科（Cryphonectriaceae）。本研究的目的是重新评估这个家庭，沿着与其他家庭在Diaporthales。基于内转录间隔区（ITS）、nrDNA大亚基（28 S）、翻译延伸因子1-α（tef 1-α）和DNA指导的RNA聚合酶II第二大亚基（rpb 2）基因的序列分析，将栗属植物分为2个亚支，包括21个属和55个种。叶隐藻科十一月，在形态学和孢子发生学上是其最近的亲戚，但由于其孢子发生和二型分生孢子而不同。鞭毛孢子菌科十一月，与透孔菌目其他科的区别在于具有顶端分生孢子附属物。Neocryphonectria，gen. nov.在中国有两个种与鹅耳枥溃疡病有关，其特征是具有梭状无隔的大分生孢子。此外，还提出了两种新的组合，即基于柠檬色壳菌的柠檬色壳孢菌和基于Endothia viridistoma的绿色胞孢菌。根据本研究的结果，31个家庭被接受为Diaporthales。
ABSTRACT The Diaporthales (Sordariomycetes) includes many important families of plant pathogenic fungi, such as the notorious Cryphonectriaceae. The aim of the present study was to reevaluate this family, along with other families in Diaporthales. Based on phylogenetic analyses using combined sequence data of the internal transcribed spacer (ITS) region, large subunit of the nrDNA (28S), and the translation elongation factor 1-alpha (tef1-α) and DNA-directed RNA polymerase II second largest subunit (rpb2) genes, Cryphonectriaceae is separated into two subclades, comprising 21 genera and 55 species. Foliocryphiaceae, fam. nov., is morphologically and phylogenetically its closest relative but is distinct due to its phylogeny and dimorphic conidia. Mastigosporellaceae, fam. nov., is distinguished from other families in Diaporthales by owning apical conidial appendages. Neocryphonectria, gen. nov., within the family Foliocryphiaceae, with two species associated with Carpinus canker in China, is characterized by fusoid, aseptate macroconidia. Additionally, two new combinations are proposed, namely, Cryphonectria citrine, based on Chromendothia citrine, and Cytospora viridistroma, based on Endothia viridistoma. Based on results obtained in this study, 31 families are accepted into Diaporthales.