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Identification and molecular characterization of a novel carlavirus infecting rose plants (Rosa chinensis Jacq.)

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Abstract

In the present study, the genome sequence of a potential novel virus, tentatively named "rose virus C" (RVC), was mined from publically available transcriptomic data from a Rosa chinensis plant. The complete genome sequence of RVC consists of 8,386 nt, excluding a 3′ poly(A) tail, and contains five ORFs. Phylogenetic analysis showed that RVC clustered with members of the genus Carlavirus, family Betaflexiviridae. The replicase gene had 48.8-52.1% nt sequence identity to those of other carlaviruses, while the CP gene had 40.4-45.9% nt sequence identity, which is far below the species demarcation cutoff of 72%. The incidence of RVC in rose plants was low (5.4%). Overall, our data suggest that RVC is a novel atypical virus of the genus Carlavirus.

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Acknowledgements

This work was supported by the National Key R & D Program of China (2019YFD1001800) and key inter-governmental projects of the National Key Research and Development Program (2017YFE0110900).

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X.F. and L.S.F. designed the experiments and wrote the manuscript. X.F., G.D.H. performed the experiments. H.N. and W.H.Q. made comments and improved the manuscript. C.M.J. conducted the systematic screening of public transcriptomic data. Funding was acquired by Z. Z.X. All authors read and approved the final manuscript.

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Correspondence to Mengji Cao or Shifang Li.

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

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Xing, F., Gao, D., Habili, N. et al. Identification and molecular characterization of a novel carlavirus infecting rose plants (Rosa chinensis Jacq.). Arch Virol 166, 3499–3502 (2021). https://doi.org/10.1007/s00705-021-05260-2

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  • DOI: https://doi.org/10.1007/s00705-021-05260-2

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