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Evolution of freshwater Diaporthomycetidae (Sordariomycetes) provides evidence for five new orders and six new families

文献类型： 外文期刊

作者： Hyde, Kevin D. 1 ; Bao, Dan-Feng 2 ; Hongsanan, Sinang 6 ; Chethana, K. W. Thilini 1 ; Yang, Jing 1 ; Suwannarach, 1 ;

作者机构： 1.Mae Fah Luang Univ, Ctr Excellence Fungal Res, Chiang Rai 57100, Thailand

2.Chiang Mai Univ, Res Ctr Microbial Divers & Sustainable Ultilizat, Chiang Mai 50200, Thailand

3.Zhongkai Univ Agr & Engn, Innovat Inst Plant Hlth, Guangzhou 510225, Peoples R China

4.Chiang Mai Univ, Fac Agr, Dept Entomol & Plant Pathol, Chiang Mai 50200, Thailand

5.Dali Univ, Coll Agr & Biol Sci, Dali 671003, Yunnan, Peoples R China

6.Shenzhen Univ, Coll Life Sci & Oceanog, Guangdong Prov Key Lab Plant Epigenet, Shenzhen Key Lab Microbial Genet Engn, Shenzhen 518060, Peoples R China

7.Mae Fah Luang Univ, Sch Sci, Chiang Rai 57100, Thailand

8.Guizhou Acad Agr Sci, Guizhou Key Lab Agr Biotechnol, Guiyang 550006, Guizhou, Peoples R China

9.Chiang Mai Univ, Fac Sci, Dept Biol, Chiang Mai 50200, Thailand

关键词： 14 new taxa; Evolution; Freshwater fungi; New family; New order

期刊名称：FUNGAL DIVERSITY （ 2020影响因子：20.372； 五年影响因子：16.344 ）

ISSN： 1560-2745

年卷期： 2021 年 107 卷 1 期

页码：

收录情况： SCI

摘要： Cancellidium is a remarkable fungal genus which has been collected from wood submerged in freshwater and has unique conidia that are important in dispersal in running streams. With such a remarkable morphology, one would have expected it to be a distinct family or order. However, due to the dearth of molecular evidence in related taxa, this genus has previously been placed in the order Hypocreales, subclass Hypocreomycetidae of Sordariomycetes. In this study, we made three new collections of this remarkable aquatic genus from streams in China and Thailand, isolated them into culture, extracted DNA and carried out multigene phylogenetic analysis and divergence time estimation which placed the genus in Diaporthomycetidae. This is one of the seven subclasses of Sordariomycetes and contains 30 lineages that are only known from freshwater. The subclass is therefore of interest when considering the evolution of freshwater fungi. Several lineages of Diaporthomycetidae are morphologically unique and taxa cluster with strong support, but have weak support at the base of the trees. The phylogenetic and MCC trees generated in this study indicate that Aquapteridospora, Barbatosphaeriaceae, Bullimyces, Cancellidium, Ceratolenta, Conlarium, Phialemoniopsis, Pseudostanjehughesia and Rhamphoriaceae are distinct genera/families that evolved in the family/order time frame. The new orders Barbatosphaeriales (177 MYA), Cancellidiales (137 MYA), Ceratolentales (147 MYA), Conlariales (138 MYA) and Rhamphoriales (133 MYA) and six new families, Aquapteridosporaceae (110 MYA), Cancellidiaceae (137 MYA), Ceratolentaceae (81 MYA), Bullimycetaceae (81 MYA), Phialemoniopsaceae (59 MYA), and Pseudostanjehughesiaceae (111 MYA) are introduced with evidence from phylogenies, divergence estimates and distinct morphologies. Of these families, Aquapteridosporaceae, Cancellidiaceae, Bullimycetaceae, and Pseudostanjehughesiaceae are only known from freshwater.

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