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A novel gammapartitivirus from the entomopathogenic fungus Metarhizium brunneum

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Abstract

Here, we report a novel partitivirus infecting Metarhizium brunneum, which was designated "Metarhizium brunneum partitivirus 2" (MbPV2). The complete genome of MbPV2 consists of two segments, dsRNA1 and dsRNA2, with each dsRNA possessing a single open reading frame (ORF). dsRNA1 (1,775 bp) encodes a conserved RNA-dependent RNA polymerase (RdRp) with the highest sequence similarity to Plasmopara viticola associated partitivirus 1 (PvAPV1), while dsRNA2 (1,568 bp) encodes a coat protein (CP) with the highest sequence similarity to Colletotrichum partitivirus 1 (CtParV1). Phylogenetic analysis based on RdRp sequences showed that MbPV2 is a new member of the genus Gammapartitivirus, family Partitiviridae. This is the first report of a gammapartitivirus that infects the entomopathogenic fungus Metarhizium brunneum.

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Funding

This work was supported by the National Natural Science Foundation of China (Grant nos. 31772226, 31471821 and 30770008) and the Research Innovation Program for College Graduates of Anhui Agricultural University (Grant no. 2020ysj-19).

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Author notes

  1. Ping Wang and Guogen Yang contributed equally to this study and share first authorship.

Authors and Affiliations

  1. Anhui Provincial Key Laboratory of Microbial Pest Control, Anhui Agricultural University, Hefei, 230036, China

    Ping Wang, Najie Shi & Bo Huang

  2. Anhui Province Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China

    Guogen Yang

Authors
  1. Ping Wang
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  2. Guogen Yang
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  3. Najie Shi
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  4. Bo Huang
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Correspondence to Bo Huang.

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Wang, P., Yang, G., Shi, N. et al. A novel gammapartitivirus from the entomopathogenic fungus Metarhizium brunneum. Arch Virol 166, 977–981 (2021). https://doi.org/10.1007/s00705-020-04939-2

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  • DOI: https://doi.org/10.1007/s00705-020-04939-2

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