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Multi-Gene Phylogenetic Analyses Reveals Heteroxylaria Gen. Nov. and New Contributions to Xylariaceae (Ascomycota) from China

文献类型： 外文期刊

作者： Zhu, An-Hong 1 ; Song, Zi-Kun 1 ; Wang, Jun-Fang 1 ; Guan, Hao-Wen 1 ; Qu, Zhi 1 ; Ma, Hai-Xia 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Hainan Key Lab Trop Microbe Resources, Haikou 571101, Peoples R China

2.Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing 100083, Peoples R China

3.Chinese Acad Trop Agr Sci, Coconut Res Inst, Haikou 571101, Peoples R China

4.Jilin Agr Univ, Coll Plant Protect, Changchun 130118, Peoples R China

5.Liaoning Univ, Sch Life Sci, Shenyang 110036, Peoples R China

6.Hainan Inst Trop Agr Resources, Haikou Key Lab Protect & Utilizat Edible & Med Fun, Haikou 571101, Peoples R China

7.Chinese Acad Trop Agr Sci, Sanya Res Inst, Chongzuo Key Lab Protect & Utilizat Edible & Med F, Chongzuo 532100, Peoples R China

关键词： multigene phylogeny; ecological characters; new species; fructicolous-fungi; seminicolous-fungi

期刊名称：JOURNAL OF FUNGI （ 影响因子：4.0； 五年影响因子：4.5 ）

ISSN：

年卷期： 2024 年 10 卷 9 期

页码：

收录情况： SCI

摘要： 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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