Taxonomy and phylogeny of hyaline-spored coelomycetes
Taxonomy and phylogeny of hyaline-spored coelomycetes
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透明孢子腔菌的分类学和系统发育
DOI：
10.1007/s13225-020-00440-y
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发表时间：
2020-03-23
期刊：
影响因子：
20.3
通讯作者：
Hyde, Kevin D.
中科院分区：
文献类型：
--
作者：
Li, Wen-Jing;McKenzie, Eric H. C.;Hyde, Kevin D.
腔菌是在子实体中产生分生孢子的无性真菌的总称：分生孢子器、分生孢子器、杯状菌、密闭囊菌或子座分生孢子。该类群包含许多与多种宿主相关的植物致病性、腐生性和内生物种。传统上，形态特征和宿主关联被用作腔菌识别和分类的标准，这导致对其属和种边界的了解不足。基于 DNA 的分类学研究为腔菌的系统发育和进化趋势提供了更好的前景。然而，目前的结果仅代表了解腔菌的初步步骤。许多属自从首次被描述以来就没有被重新研究过。本研究修订了透明孢子腔菌的分类，并提供了基于形态学和系统发育的现代分类框架。总共对 248 个属进行了研究，其中已知有序列数据的属不到 100 个。对28S nrDNA、18S nrDNA、ITS、RNA聚合酶II第二大亚基(rpb2)以及部分翻译延伸因子1-α基因(tef1)和β-微管蛋白(tub2)基因区域的多位点序列数据进行了分析。结果，引入了 3 个新属和 23 个新种。此外，还提供了有性属和无性属之间的三个新联系。有 138 个属缺乏序列数据，这些属被视为子囊菌门 (Ascomycota)、generaincerae sedis。根据对类型和新鲜收藏品的检查以及文献，提供了线条图和描述。
Coelomycete is a general term used for asexual fungi which produce conidia in fruiting bodies: pycnidial, acervular, cupulate, pycnothyria or stromatic conidiomata. The group contains numerous plant pathogenic, saprobic and endophytic species associated with a wide range of hosts. Traditionally, morphological characters and host associations have been used as criteria to identify and classify coelomycetes, and this has resulted in a poor understanding of their generic and species boundaries. DNA based taxonomic studies have provided a better outlook of the phylogenetic and evolutionary trends in coelomycetes. However, the present outcomes represent only a preliminary step towards the understanding of coelomycetes. Many genera have not been revisited since they were first described. The present study revises the classification of the hyaline-spored coelomycetes and provides a modern taxonomic framework based on both morphology and phylogeny. In total, 248 genera were investigated, of which less than 100 are known to have sequence data. Multi-locus sequence data analyses of 28S nrDNA, 18S nrDNA, ITS, RNA polymerase II second largest subunit (rpb2), and part of the translation elongation factor 1-alpha gene (tef1) and β-tubulin (tub2) gene regions were analysed. As a result, three new genera and 23 new species are introduced. In addition, three new links between sexual and asexual genera are provided. There are 138 genera that lack sequence data, and these are treated as Ascomycota, generaincertae sedis. Line drawings and descriptions are provided based on the examination of types and fresh collections and on the literature.