The complete genome sequence of a new mitovirus from the phytopathogenic fungus Colletotrichum higginsianum


In this study, a novel mitovirus designed "Colletotrichum higginsianum mitovirus 1" (ChMV1) was isolated from the phytopathogenic fungus Colletotrichum higginsianum. The genome of this mitovirus is 2,893 nt in length with an A + U content of 61% and contains a large open reading frame (ORF) encoding an RNA-dependent RNA polymerase (RdRp). A BLASTp analysis revealed that the RdRp domain of ChMV1 had 30.25% to 61.72% sequence identity to those of members of the genus Mitovirus and showed the highest degree of similarity (61.72% identity) to Botrytis cinerea mitovirus 3 (BcMV3). Phylogenetic analysis further indicated that ChMV1 is a member in the genus Mitovirus of the family Mitoviridae. To the best of our knowledge, this is the first report of a mitovirus in C. higginsianum.

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This study was supported by the Excellent Doctoral Dissertation Cultivating Fund of Hunan Agricultural University (YB2019005) and the Hunan Provincial Department of Education Science Project (19K040).

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Correspondence to Qian Zhou.

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Wang, H., Liu, H. & Zhou, Q. The complete genome sequence of a new mitovirus from the phytopathogenic fungus Colletotrichum higginsianum. Arch Virol 166, 1481–1484 (2021).

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