ArticleArchives of virology2025
A novel papillomavirus identified through viromic analysis of stranded Yangtze finless porpoises (Neophocaena asiaeorientalis asiaeorientalis).
Article in Archives of virology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis) is a critically endangered freshwater cetacean that is endemic to China. In this study, we conducted viromic analysis on swab and tissue samples from three stranded individuals collected in 2024, using high-throughput meta-transcriptomic sequencing. A diverse range of viral sequences was identified, including a large proportion of unclassified viruses, bacteriophage-related viruses, and vertebrate-associated viruses. Notably, we assembled the complete genome sequence of a novel papillomavirus, designated Neophocaena asiaeorientalis papillomavirus isolate WH240216 (NasiPV-WH240216), which shares 82.2% overall nucleotide sequence identity and 87.5% L1 gene identity with Phocoena spinipinnis papillomavirus 1 (PsPV1). The genome is 8,010 bp in length and exhibits the typical genome organization and conserved protein motifs of a papillomavirus. Phylogenetic analysis placed this virus within the genus Omikronpapillomavirus, and its sequence divergence met the ICTV criteria for a novel papillomavirus type. These findings expand our knowledge of the diversity of papillomaviruses in cetaceans and provide important insights into the evolution and potential pathogenicity of marine mammal papillomaviruses.
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