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Genome sequence of a novel partitivirus identified from the oomycete Pythium nunn

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Abstract

The mycoparasitic oomycete Pythium nunn isolate UZ415 contains two double-stranded RNAs (dsRNAs) of different sizes. The 1707-nt dsRNA1 and the 1475-nt dsRNA2 potentially encode an RNA-dependent RNA polymerase (RdRp) and a coat protein (CP), respectively, with sequence similarity to the RdRp and CP of gammapartitiviruses (< 57% and < 36%). Phylogenetic analysis of the deduced RdRp amino acid sequences indicated that the virus identified from P. nunn is classifiable as a distinct member of the genus Ganmmapartitivirus in the family Partitiviridae. This virus isolate is hereby named Pythium nunn virus 1 (PnV1).

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Acknowledgments

TM would like to thank Dr. M.J. Roossinck and her laboratory members at Penn State University, USA for discussions that helped inspire this work. We would like to express sincere thanks to Dr. S. Uzuhashi at the Genetic Resources Center, National Agriculture and Food Research Organization, Japan for providing the Pythium nunn isolate.

Funding

This study was funded by the Sasakawa Scientific Research Grant (Sasai, S., #29-409) from The Japan Science Society.

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Correspondence to Tomofumi Mochizuki.

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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: Robert H.A. Coutts.

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Shiba, K., Hatta, C., Sasai, S. et al. Genome sequence of a novel partitivirus identified from the oomycete Pythium nunn. Arch Virol 163, 2561–2563 (2018). https://doi.org/10.1007/s00705-018-3880-0

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  • DOI: https://doi.org/10.1007/s00705-018-3880-0

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