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Freshwater fungi in the karst plateau wetlands from Guizhou Province, China: taxonomic novelties in Melanommataceae (Pleosporales)

文献类型： 外文期刊

作者： Liu, Ling-Ling 1 ; Liu, Yong-Xiang 2 ; Chen, Ya-Ya 2 ; Gou, Jiu-Lan 1 ; Chi, Feng 4 ; Liu, Yi 5 ; Gu, Xiao-Feng 1 ; Wei, Quan-Quan 1 ; Zhang, Meng 1 ; Liu, Zuo-Yi 2 ; Zhou, Si 4 ;

作者机构： 1.Guizhou Acad Agr Sci, Guizhou Inst Soil & Fertilizer, Guiyang, Peoples R China

2.Guizhou Acad Agr Sci, Guizhou Key Lab Agr Biotechnol, Guiyang, Peoples R China

3.Guizhou Acad Agr Sci, Guizhou Prov Inst Crop Germplasm Resources, Guiyang 550006, Peoples R China

4.Guizhou Prov Environm Sci Res & Design Inst, Guiyang, Peoples R China

5.Guizhou Caohai Natl Nat Reserve Management Comm, Bijie, Peoples R China

关键词： Aquatic fungi; ascomycota; four new taxa; generic delimitation; molecular phylogeny

期刊名称：MYCOKEYS （ 影响因子：3.6； 五年影响因子：3.3 ）

ISSN： 1314-4057

年卷期： 2025 年 113 期

页码：

收录情况： SCI

摘要： Three isolates of interest were collected during an investigation of freshwater fungi from wetlands in the karst regions of Guizhou Province, Southwest China. Phylogenetic analyses using ITS, LSU, SSU, and tef-1 alpha gene regions have revealed the placements of these isolates in Melanommataceae (Pleosporales, Dothideomycetes). Based on the morphological and phylogenetic evidence, three new species are introduced: Byssosphaeria chishuiensis sp. nov., Camposporium guizhouense sp. nov., and C. aquaticum sp. nov. Byssosphaeria chishuiensis is sister to B. villosa and forms a basal branch of Byssosphaeria within Melanommataceae. Byssosphaeria chishuiense is similar to B. villosa in ascal size but differs in the ascomata and ascospore sizes, and the ascospores lack appendages. Camposporium aquaticum is sister to C. guizhouense, and they form a distinct lineage within the genus. Morphologically, C. aquaticum resembles C. guizhouense in its conidial shape but differs in conidial size. Additionally, PHI analysis is performed to further reveal that C. aquaticum and C. guizhouense have no significant recombination with related taxa. Neobyssosphaeria is synonymized under Byssosphaeria, and accordingly, Byssosphaeria clematidis comb. nov. is proposed to accommodate Neobyssosphaeria clematidis. The descriptions, illustrations, and notes of the novel taxa are provided along with an updated phylogenetic tree of Melanommataceae. Two synopses of the species in Byssosphaeria and Camposporium are also provided.

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