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Taxonomic and phylogenetic contributions to Diatrypaceae from southeastern Tibet in China

文献类型: 外文期刊

作者: Ma, Hai-Xia 1 ; Yang, Zhan-En 1 ; Song, Zi-Kun 1 ; Qu, Zhi 1 ; Li, Yu 3 ; Zhu, An-Hong 4 ;

作者机构: 1.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Hainan Inst Trop Agr Resources, Hainan Key Lab Trop Microbe Resources, Haikou, Peoples R China

2.Southwest Forestry Univ, Coll Biodivers Conservat, Kunming, Peoples R China

3.Jilin Agr Univ, Coll Plant Protect, Changchun, Peoples R China

4.Chinese Acad Trop Agr Sci, Haikou, Peoples R China

关键词: Ascomycota; Diatrypaceous fungi; multigene phylogeny; taxonomy; wood-decaying fungi; Xylariales

期刊名称:FRONTIERS IN MICROBIOLOGY ( 影响因子:5.2; 五年影响因子:6.2 )

ISSN:

年卷期: 2023 年 14 卷

页码:

收录情况: SCI

摘要: In this study, we investigated the diversity of diatrypaceous fungi from southeastern Tibet in China. The phylogenetic analyses were carried out based on ITS and beta-tubulin sequences of 75 taxa of Diatrypaceae from around the world. Based on a combination of morphological features and molecular evidence, a new genus-Alloeutypa, with three new species-A. milinensis, Diatrype linzhiensis, and Eutypella motuoensis, and a new combination-A. flavovirens, were revealed by the materials in China. Alloeutypa is characterized by stromatal interior olivaceous buff, stromata producing well-developed discrete, and ascospores allantoid, subhyaline. These characteristics separate the new genus from the similar genus Eutypa. Comprehensive morphological descriptions, illustrations, and a phylogenetic tree to show the placement of new taxa are provided. All novelties described herein are morphologically illustrated and phylogeny investigated to better integrate taxa into the higher taxonomic framework and infer their phylogenetic relationships as well as establish new genera and species. Our results indicate that the diatrypaceous fungi harbor higher species diversity in China.

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