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. 2023 Jan 7;168(2):43.
doi: 10.1007/s00705-022-05655-9.

Complete genome sequence analysis of a new potyvirus isolated from Paris polyphylla var. yunnanensis

Boxin Zhang  1   2 , Qiannan Li  1   2 , Jingyu Hu  1   2 , Lei Zhang  1   2 , Xian Dong  1   2 , Pengzhang Ji  1   2 , Jiahong Dong  3   4
Affiliations

Complete genome sequence analysis of a new potyvirus isolated from Paris polyphylla var. yunnanensis

Boxin Zhang et al. Arch Virol. .

Abstract

The complete genome sequence of a new potyvirus from Paris polyphylla var. yunnanensis was determined. Its genomic RNA consists of 9571 nucleotides (nt), excluding the 3'-terminal poly(A) tail, containing the typical open reading frame (ORF) of potyviruses and encoding a putative large polyprotein of 3061 amino acids. The virus shares 54.20%-59.60% nt sequence identity and 51.80%-57.90% amino acid sequence identity with other potyviruses. Proteolytic cleavage sites and conserved motifs of potyviruses were identified in the polyprotein and within individual proteins. Phylogenetic analysis indicated that the virus was most closely related to lily yellow mosaic virus. The results suggest that the virus should be classified as a member of a novel species within the genus Potyvirus, and we have tentatively named this virus "Paris yunnanensis mosaic chlorotic virus" (PyMCV).

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