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Pensoft Publishers, MycoKeys, (71), p. 101-118, 2020

DOI: 10.3897/mycokeys.71.55493

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

Journal article published in 2020 by Binu C. Samarakoon, Dhanushka N. Wanasinghe ORCID, Milan C. Samarakoon ORCID, Rungtiwa Phookamsak ORCID, Eric H. C. McKenzie, Putarak Chomnunti, Kevin D. Hyde, Saisamorn Lumyong, Samantha C. Karunarathna ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Dead leaves ofMusasp. (banana) were collected in northern Thailand during an investigation of saprobic fungi. Preliminary morphological observations revealed that three specimens belong toDictyoarthrinium. Phylogenetic analyses of combined SSU, LSU, ITS andtef1-α sequence data revealed thatDictyoarthriniumforms a clade in Didymosphaeriaceae (Massarineae, Pleosporales, Dothideomycetes) sister toSpegazzinia. Based on contrasting morphological features with the extant taxa ofDictyoarthrinium, coupled with the multigene analyses,Dictyoarthrinium musaesp. nov. is introduced herein. Our study provides the first detailed molecular investigation forDictyoarthriniumand supports its placement in Didymosphaeriaceae (Massarineae, Pleosporales, Dothideomycetes). Previously,Dictyoarthriniumwas classified in Apiosporaceae (Xylariales, Sordariomycetes).