AI Article Synopsis
- A novel potyvirus named "Polygonatum kingianum virus 1" (PKgV1) has been identified in the plant Polygonatum kingianum in China, with a complete genome sequence registered in GenBank.
- PKgV1 has a characteristic genome layout typical of potyviruses, consisting of a large open reading frame that encodes a polyprotein, which is expected to be processed into 10 functional proteins.
- Phylogenetic and comparative analysis show that PKgV1 shares considerable sequence identity with other potyviruses, particularly clustering closely with lettuce mosaic virus, confirming its classification as a new member of the Potyvirus genus.
Article Abstract
The complete genome sequence of a putative novel potyvirus, tentatively named "Polygonatum kingianum virus 1" (PKgV1), infecting Polygonatum kingianum in China was determined (GenBank accession no. MK427056). PKgV1 has a genome organization that is typical of potyviruses, with a single large open reading frame (nt 123-9236) that encodes a 3037-aa polyprotein that is predicted to be cleaved into 10 mature proteins by virus-encoded proteases. Nine cleavage sites and several conserved motifs were identified in PKgV1 by comparative sequence analysis. Pairwise comparisons revealed that the PKgV1 polyprotein shares 52.0-56.2% nucleotide and 49.2-52.8% amino acid sequence identity with members of the genus Potyvirus. Phylogenetic analysis indicated that PKgV1 clustered with members of the genus Potyvirus and that it is closely related to but distinct from lettuce mosaic virus (LMV, accession no. KJ161186). These results suggest that Polygonatum kingianum virus 1 (PKgV1) is a new member of the genus Potyvirus of the family Potyviridae.
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| http://dx.doi.org/10.1007/s00705-020-04717-0 | DOI Listing |
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