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Article
Published: 2022-08-08

Alternaria vignae sp. nov. (Ascomycota: Pleosporaceae) from Vigna unguiculata in China

Department of Plant Protection, College of Agriculture, Yangtze University, Jingzhou 434025, China; Forewarning and Management of Agricultural and Forestry Pests, Hubei Engineering Technology Center, Yangtze University, Jingzhou 434025, China
Department of Plant Protection, College of Agriculture, Yangtze University, Jingzhou 434025, China; Forewarning and Management of Agricultural and Forestry Pests, Hubei Engineering Technology Center, Yangtze University, Jingzhou 434025, China
Department of Plant Protection, College of Agriculture, Yangtze University, Jingzhou 434025, China; Forewarning and Management of Agricultural and Forestry Pests, Hubei Engineering Technology Center, Yangtze University, Jingzhou 434025, China
Department of Plant Protection, College of Agriculture, Yangtze University, Jingzhou 434025, China; Forewarning and Management of Agricultural and Forestry Pests, Hubei Engineering Technology Center, Yangtze University, Jingzhou 434025, China
Institute of Special Wild Economic Animals and Plants, Chinese Academy of Agriculture Sciences, Changchun 130112, China
Alternaria vignae sp. nov. Morphology Multi-locus phylogeny Taxonomy Vigna unguiculata Fungi

Abstract

Alternaria is a widely distributed fungal genus served as saprophytes, endophytes and pathogens. An Alternaria species was isolated from Vigna unguiculata in Inner Mongolia Autonomous Region of China. The strains were determined based on morphological characteristics and multi-locus phylogenetic analyses including the internal transcribed spacer of rDNA  region (ITS), glyceraldehydes-3-phosphate dehydrogenase (GAPDH), RNA polymerase second largest subunit (RPB2) and translation-elongation factor 1 alpha (TEF1). The results indicated that it was a new species, which described and illustrated as Alternaria vignae sp. nov. in this study. Phylogenetic analyses showed that the species formed a well-supported clade (sect. Helianthiinficientes) close to A. helianthiinficiens.

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