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. 2025 Jul 11;170(8):180.
doi: 10.1007/s00705-025-06361-y.

Molecular characterization of a novel mitovirus infecting the phytopathogenic fungus Colletotrichum camelliae

Hao Zeng  1 , Bin Tian  1 , Liangxuan Qu  2 , Fuyin He  1 , Wei Huang  1 , Shuanglong Wang  1 , Hong Liu #  3 , Lihong Cui #  4
Affiliations

Molecular characterization of a novel mitovirus infecting the phytopathogenic fungus Colletotrichum camelliae

Hao Zeng et al. Arch Virol. .

Abstract

In this investigation, we identified a novel mitovirus from the phytopathogenic fungus Colletotrichum camelliae strain HNCS-Cc7 and named it "Colletotrichum camelliae mitovirus 1" (CcMV1). Whole-genome sequencing revealed that CcMV1 has 2,650 nucleotides with an A + U content of 62%. The CcMV1 genome contains a single open reading frame (ORF) that encodes an RNA-dependent RNA polymerase (RdRP) of 756 amino acids with a molecular mass of 84.67 kDa. Using a BLASTp search, the CcMV1-RdRp demonstrated the closest sequence similarity to Sclerotinia nivalis mitovirus 2 (61.55%), Sclerotinia sclerotiorum mitovirus 3 (62.03%), and Botrytis cinerea mitovirus 7 (61.60%). Phylogenetic analysis suggested that CcMV1 is a new member of the genus Duamitovirus of the family Mitoviridae. To our knowledge, this is the first report of a mitovirus infecting C. camelliae.

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Conflict of interest statement

Declarations. Conflict of interest: All authors declare that they have no conflicts of interest. Ethical approval: This study did not include experiments with human participants or animals performed by any of the authors.

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