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Evidence for a novel partitivirus isolated from the entomopathogenic nematode Steinernema ceratophorum

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Abstract

Nematodes are abundant, but little is known about their viruses. In this study, we report a novel partitivirus isolated from the entomopathogenic nematode species Steinernema ceratophorum, named "Steinernema ceratophorum partitivirus 1" (ScPV-1). The complete genome of ScPV-1 comprises two dsRNA segments, dsRNA1 (2352 bp) and dsRNA2 (2196 bp). Each dsRNA contains a single open reading frame (ORF), encoding a putative RNA-dependent RNA polymerase (RdRp) and a coat protein (CP), respectively. The sequences of the RdRp and CP showed the highest similarity (47% and 33% identity, respectively) to Plasmopara viticola associated partitivirus 7 (PvAP-7). A multiple sequence alignment and phylogenetic analysis of the RdRp of ScPV-1 and other selected viruses indicated that ScPV-1 is a new member of the genus Betapartitivirus in the family Partitiviridae.

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Funding

This work was supported by the National Key R&D Program of China (2019YFD1002000).

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Author notes

  1. Shuangchao Wang and Irfan Ahmed contributed equally to this work.

Authors and Affiliations

  1. State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China

    Shuangchao Wang, Irfan Ahmed, Xianhui Li, Jianhua Nie & Lihua Guo

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  1. Shuangchao Wang
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  2. Irfan Ahmed
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  3. Xianhui Li
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  4. Jianhua Nie
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  5. Lihua Guo
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Correspondence to Lihua Guo.

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Wang, S., Ahmed, I., Li, X. et al. Evidence for a novel partitivirus isolated from the entomopathogenic nematode Steinernema ceratophorum. Arch Virol 167, 969–972 (2022). https://doi.org/10.1007/s00705-021-05314-5

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  • DOI: https://doi.org/10.1007/s00705-021-05314-5

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