Towards an integrated phylogenetic classification of the Tremellomycetes.
Towards an integrated phylogenetic classification of the Tremellomycetes.
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DOI：
10.1016/j.simyco.2015.12.001
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发表时间：
2015-06
影响因子：
16.5
通讯作者：
Bai FY
中科院分区：
文献类型：
--
作者：
Liu XZ;Wang QM;Göker M;Groenewald M;Kachalkin AV;Lumbsch HT;Millanes AM;Wedin M;Yurkov AM;Boekhout T;Bai FY
归属于银耳菌的科和属主要由形态学限定，而酵母菌的科和属也由生物化学和生理学特征限定。这种基于表型的分类在很大程度上与分子系统发育分析相冲突。在这里提出了一个系统发育分类框架的银耳菌的基础上，从7个基因的数据集，涵盖了大多数的银耳酵母和密切相关的丝状类群的系统发育分析的结果。在该命令，科和属的水平上的分类单位的周长进行了定量评估，使用系统发育等级边界优化（PRBO）和修改后的一般混合Yule聚结（GMYC）测试。此外，扩展的LSU rRNA（D1/D2结构域）基因序列数据集，涵盖了尽可能多的可用teleomorphic和丝状分类群内Tremellomycetes进行了全面的系统发育分析，调查酵母和丝状分类群之间的关系，并检查欠采样分支的稳定性。根据分子数据和形态学及理化特征推断的结果，我们提出了一个更新的分类Tremellomycetes。共收录5目17科54属，其中包括7个新科18个新属。订正了7科17属，提出了1个新种名和185个新组合。我们建议使用“临时”或“暂时”一词。以缩写形式表示暂时保留的物种名称。
Families and genera assigned to Tremellomycetes have been mainly circumscribed by morphology and for the yeasts also by biochemical and physiological characteristics. This phenotype-based classification is largely in conflict with molecular phylogenetic analyses. Here a phylogenetic classification framework for the Tremellomycetes is proposed based on the results of phylogenetic analyses from a seven-genes dataset covering the majority of tremellomycetous yeasts and closely related filamentous taxa. Circumscriptions of the taxonomic units at the order, family and genus levels recognised were quantitatively assessed using the phylogenetic rank boundary optimisation (PRBO) and modified general mixed Yule coalescent (GMYC) tests. In addition, a comprehensive phylogenetic analysis on an expanded LSU rRNA (D1/D2 domains) gene sequence dataset covering as many as available teleomorphic and filamentous taxa within Tremellomycetes was performed to investigate the relationships between yeasts and filamentous taxa and to examine the stability of undersampled clades. Based on the results inferred from molecular data and morphological and physiochemical features, we propose an updated classification for the Tremellomycetes. We accept five orders, 17 families and 54 genera, including seven new families and 18 new genera. In addition, seven families and 17 genera are emended and one new species name and 185 new combinations are proposed. We propose to use the term pro tempore or pro tem. in abbreviation to indicate the species names that are temporarily maintained.