多基因系统发育分析揭示中国新异藻属和对木犀属(子囊菌科)的新贡献

IF 4.2 2区 生物学 Q2 MICROBIOLOGY Journal of Fungi Pub Date : 2024-09-11 DOI:10.3390/jof10090645
An-Hong Zhu, Zi-Kun Song, Jun-Fang Wang, Hao-Wen Guan, Zhi Qu, Hai-Xia Ma
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引用次数: 0

摘要

在中国对木犀属(Xylaria)和木犀科(Xylaceaecea)相关属中与果实和种子果壳相关的木犀属(Xylaria)物种的系统发生关系进行了深入研究。基于ITS、RPB2和TUB序列,对全球已知的16个木犀属100个物种进行了多基因系统发育分析。根据分子系统进化分析、形态观察和生态习性,建立了一个新属 Heteroxylaria,包括四个新种,即 H. cordiicola、H. juglandicola、H. meliicola 和 H. terminaliicola,以及四个新组合,即 H. oxyacanthae、H. palmicola、H. reevesiae 和 H. rohrensis。该属的特征是圆柱形基质,有明显至不明显的壳丘,表面黑色,有褐色至深褐色的带胚芽裂缝的放线孢子,生长在果实的果壳上。木犀科代表性类群的 ITS+RPB2+TUB 序列组合数据集表明,Heteroxylaria 与 Hypocreodendron 同属一个类群,但形成一个单系。本文描述的所有新种都有形态学图解,并与相似种进行了比较,通过系统发育研究建立了新属和新种。
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Multi-Gene Phylogenetic Analyses Reveals Heteroxylaria Gen. Nov. and New Contributions to Xylariaceae (Ascomycota) from China
An in-depth study of the phylogenetic relationships of Xylaria species associated with nutshells of fruits and seeds within the genus Xylaria and related genera of Xylaceaecea was conducted in China. The multi-gene phylogenetic analyses were carried out based on ITS, RPB2, and TUB sequences of 100 species of 16 known genera in Xylariaceae around the world. Based on molecular phylogenetic analyses, morphological observations, and ecological habitats, a new genus, Heteroxylaria, is established to accommodate four new species, viz. H. cordiicola, H. juglandicola, H. meliicola, and H. terminaliicola, and four new combinations, viz. H. oxyacanthae, H. palmicola, H. reevesiae, and H. rohrensis. The genus is characterized by cylindrical stromata with conspicuous to inconspicuous perithecial mounds, surface black, having brown to dark brown ascospores with a germ slit, and it grows on nutshell of fruits. The combined ITS+RPB2+TUB sequence dataset of representative taxa in the Xylariaceae demonstrate that Heteroxylaria is grouped with Hypocreodendron but forms a monophyletic lineage. All novelties described herein are morphologically illustrated and compared to similar species and phylogeny is investigated to establish new genera and species.
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来源期刊
Journal of Fungi
Journal of Fungi Medicine-Microbiology (medical)
CiteScore
6.70
自引率
14.90%
发文量
1151
审稿时长
11 weeks
期刊介绍: Journal of Fungi (ISSN 2309-608X) is an international, peer-reviewed scientific open access journal that provides an advanced forum for studies related to pathogenic fungi, fungal biology, and all other aspects of fungal research. The journal publishes reviews, regular research papers, and communications in quarterly issues. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on paper length. Full experimental details must be provided so that the results can be reproduced.
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