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Multi-gene phylogenetic evidence suggests Dictyoarthrinium belongs in Didymosphaeriaceae (Pleosporales, Dothideomycetes) and Dictyoarthrinium musae sp. nov. on Musa from Thailand

Binu C. SamarakoonDepartment of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, ThailandDhanushka N. WanasingheCAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, ChinaMilan C. SamarakoonDepartment of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, ThailandRungtiwa PhookamsakCentre for Mountain Futures (CMF), Kunming Institute of Botany, Kunming 650201, Yunnan, ChinaEric H. C. McKenzieManaaki Whenua-Landcare Research, Private Bag 92170, Auckland, New ZealandPutarak ChomnuntiCenter of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, ThailandKevin D. HydeInnovative Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Guangdong Province, People's Republic of ChinaSaisamorn LumyongResearch Center of Microbial Diversity and Sustainable Utilization, Faculty of Sciences, Chiang Mai University, Chiang Mai 50200, ThailandSamantha C. KarunarathnaCAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China

2020en

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Annotatsiya

Dead leaves of Musa sp. (banana) were collected in northern Thailand during an investigation of saprobic fungi. Preliminary morphological observations revealed that three specimens belong to Dictyoarthrinium . Phylogenetic analyses of combined SSU, LSU, ITS and tef 1-α sequence data revealed that Dictyoarthrinium forms a clade in Didymosphaeriaceae (Massarineae, Pleosporales, Dothideomycetes) sister to Spegazzinia . Based on contrasting morphological features with the extant taxa of Dictyoarthrinium , coupled with the multigene analyses, Dictyoarthrinium musae sp. nov. is introduced herein. Our study provides the first detailed molecular investigation for Dictyoarthrinium and supports its placement in Didymosphaeriaceae (Massarineae, Pleosporales, Dothideomycetes). Previously, Dictyoarthrinium was classified in Apiosporaceae (Xylariales, Sordariomycetes).

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DOI: 10.3897/mycokeys.71.55493

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