Here, we describe the molecular characterization of a novel mycovirus isolated from a phytopathogenic fungus, Alternaria dianthicola, which we have named “Alternaria dianthicola dsRNA virus 1” (AdRV1). AdRV1 has a genome of 3,014 bp that contains two non-overlapping open reading frames (ORF1 and 2) coding for a hypothetical protein and an RNA-dependent RNA polymerase (RdRp), respectively. Based on the RdRp, AdRV1 is phylogenetically related to some unclassified dsRNA mycoviruses, including Alternaria longipes dsRNA virus 1, and shows a distant relationship to members of the family Partitiviridae. To the best of our knowledge, this is the first report of mycovirus infecting A. dianthicola.
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This research was supported by the China Postdoctoral Science Foundation (Grant no. 2018M641562), the Natural Science Foundation of Hunan Province, China (Grant no. 2018JJ3229), and the Hunan Innovation and entrepreneurship training Foundation for Undergraduates (grant no. S201910537057).
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Hu, Z., Guo, J., Da Gao, B. et al. A novel mycovirus isolated from the plant-pathogenic fungus Alternaria dianthicola. Arch Virol (2020). https://doi.org/10.1007/s00705-020-04700-9