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First report of a novel alphapartitivirus in the basidiomycete Rhizoctonia oryzae-sativae

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Abstract

Rhizoctonia oryzae-sativae is a soil-borne basidiomycete fungus that causes aggregate sheath spot disease on rice worldwide. Here, we report the complete genome sequence of a partitivirus designated as Rhizoctonia oryzae-sativae partitivirus 1 (RosPV1) infecting this fungus. The genome of RosPV1 consists of two double-stranded RNA (dsRNA) segments. The larger segment, designated as dsRNA-1 (1,961 bp), contains a single open reading frame (ORF) that encodes a putative polypeptide with a conserved RNA-dependent RNA polymerase (RdRp) domain. The smaller segment, dsRNA-2 (1,819 bp), also has a single ORF, which is predicted to encode the capsid protein (CP). BLAST searches and phylogenetic analyses suggested that RosPV1 is a representative member of a new species within the genus Alphapartitivirus. This is the first report of an alphapartitivirus infecting the fungus R. oryzae-sativae.

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Acknowledgements

The authors are grateful to the Bose Institute (India) for hosting this research. The authors also express their deepest gratitude to Dr. Hideki Kondo for carefully reading this manuscript and making useful comments. The corresponding author acknowledges the Department of Science and Technology (Government of India), Science and Engineering Research Board (DST, SERB), New Delhi, India, for financial support (SERB Sanction Order no.: SB/YS/LS-68/2014).

Funding

This study was a part of a start-up research grant (under young scientists scheme) funded by the Science and Engineering Research Board (SERB, SERB Sanction Order no.: SB/YS/LS-68/2014), awarded to the corresponding author.

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  1. Subha Das

    Present address: Institute of Plant Science and Resources (IPSR), Okayama University, Chuo 2-20-1, Kurashiki, Okayama, 710-0046, Japan

Authors and Affiliations

  1. Division of Plant Biology, Bose Institute, Centenary Campus, P 1/12, C. I. T. Road, Scheme-VIIM, Kolkata, West Bengal, 700054, India

    Subha Das & Sampa Das

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  1. Subha Das
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  2. Sampa Das
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Correspondence to Subha Das.

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The authors declare that they have no conflict of interest.

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This article does not contain any studies with human participants or animals performed by any of the authors.

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Handling Editor: Ioannis E. Tzanetakis.

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Das, S., Das, S. First report of a novel alphapartitivirus in the basidiomycete Rhizoctonia oryzae-sativae. Arch Virol 164, 889–892 (2019). https://doi.org/10.1007/s00705-018-04116-6

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  • DOI: https://doi.org/10.1007/s00705-018-04116-6

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