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Characterization of a novel victorivirus from Nigrospora chinensis, a fungus isolated from tobacco

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Abstract

Here, we characterized a new mycovirus from the fungus Nigrospora chinensis, which was named "Nigrospora chinensis victorivirus 1" (NcVV1). The NcVV1 genome is 5283 bp in length, containing two continuous open reading frames (ORFs), ORF1 and ORF2. ORF1 and ORF2 were predicted to encode a putative coat protein (CP) and an RNA-dependent RNA polymerase (RdRp), respectively. The stop codon of ORF1 overlaps with the start codon of ORF2 by the tetranucleotide sequence AUGA. Phylogenetic analysis based on amino acid sequences of RdRp and CP indicated that NcVV1 clustered with members of the genus Victorivirus in the family Totiviridae. To our knowledge, this was the first report of a mycovirus infecting N. chinensis.

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Acknowledgements

This research was supported by the Tobacco Agricultural Science and Technology Innovation Project of Chenzhou City, Hunan Province, in 2020 (CZYC2020JS04), the Tobacco Science and Technology Project of Hunan Province (HN2021KJ01), and the Hunan Innovation and Entrepreneurship Training Foundation for Undergraduates (grant no. S202110537045).

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Authors and Affiliations

  1. Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Nongda Road 1, Furong District, Changsha, 410128, Hunan, People’s Republic of China

    Jie Zhong, Wen Wen Sui, Ping Li & Qian Jun Tang

  2. Tobacco Research Institute of Hunan Province, Changsha, 410004, Hunan, People’s Republic of China

    Tian Bo Liu

  3. Chenzhou Tobacco Company of Hunan Province, Chenzhou, 423000, Hunan, People’s Republic of China

    Yan Song Xiao

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  1. Jie Zhong
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  2. Wen Wen Sui
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  4. Qian Jun Tang
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  5. Tian Bo Liu
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Correspondence to Jie Zhong, Tian Bo Liu or Yan Song Xiao.

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Zhong, J., Sui, W.W., Li, P. et al. Characterization of a novel victorivirus from Nigrospora chinensis, a fungus isolated from tobacco. Arch Virol 167, 2851–2855 (2022). https://doi.org/10.1007/s00705-022-05619-z

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  • DOI: https://doi.org/10.1007/s00705-022-05619-z

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