Abstract
A novel negative-stranded (ns) RNA virus tentatively named “Yunnan paris negative-stranded virus” (YPNSV), was isolated from Paris polyphylla var. yunnanensis plants exhibiting leaf chlorosis and mosaic symptoms in Yunnan. Its complete genome sequence was determined using Illumina and Sanger sequencing. YPNSV has a bipartite genome that consists of a negative-stranded (ns) RNA1 encoding the viral RNA-dependent RNA polymerase (RdRp, p251), an ambisense RNA2 coding for the putative movement protein (MP, p46) and nucleocapsid protein (NP, p39), with the two open reading frames separated by a long intergenic region that is rich in A and U. Sequence comparisons showed that the RdRp, MP, and NP of YPNSV are most similar to those of watermelon crinkle leaf-associated virus 2 (WCLaV-2), with 69.1%, 50.4%, and 60.9% amino acid sequence identity, respectively. Phylogenetic analysis based on deduced amino acid sequences of RdRp and NP showed that YPNSV clustered in a clade with coguviruses and that its closest known relative is WCLaV-2. Based on the above results, YPNSV should be regarded as a new member of genus Coguvirus, family Phenuiviridae.
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Data availability
The dataset generated during the current study is available in the GenBank database.
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This study was funded by the National Natural Science Foundation of China (81860774).
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Chen, Z., Anane, R.F., Wang, Z. et al. Complete genome sequence analysis of a novel coguvirus isolated from Paris polyphylla var. yunnanensis. Arch Virol 166, 2045–2050 (2021). https://doi.org/10.1007/s00705-021-05087-x
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DOI: https://doi.org/10.1007/s00705-021-05087-x