ArticleVirus genes2025
Expanding the diversity of Celavirus, the most divergent genus in the family Potyviridae.
Article in Virus genes, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Transcriptome mining and comparative genomics reveal 36 putative novel marafivirus species and conserved evolution of the marafibox regulatory element.Genes & genomics · 2026Article
- Transcriptome mining expands the diversity of Antonospora locustae virus 1-like viruses in the family Amalgaviridae.Virus genes · 2026Article
- Novel citrivirus and prunevirus genomes further demonstrate the recurrent, independent acquisition of nucleic acid-binding proteins in the family Betaflexiviridae.Genes & genomics · 2026Article
- Discovery of novel viruses related to theVirus evolution · 2026Article
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Authors and funding
2 authors.
Funding
Abstract
Celavirus is a genus within the family Potyviridae, currently comprising a single recognized species, Celavirus apii, represented by celery latent virus (CeLV), and one additional potential member, Striga-associated poty-like virus 2 (SaPlV2). The Celavirus genome is highly divergent from those of other potyvirids, and its polyprotein architecture remains incompletely resolved. In this study, we conducted systematic mining of publicly available transcriptome datasets and identified eight novel celavirus-like viral genome contigs from five distinct sources, including Chrysanthemum × morifolium, Leucadendron linifolium, L. muirii, Dalzellia ubonensis, and mycorrhizal protocorms formed by Serapias vomeracea and Tulasnella calospora. Based on sequence comparisons and species demarcation criteria, these genome contigs likely represent four novel viral species. Phylogenetic analysis placed all novel viruses in a monophyletic clade with CeLV and SaPlV2, distinct from all other approved genera in the family Potyviridae. Conserved functional domains typical of potyvirid polyproteins, including CI, NIa-Pro, and NIb, were identified, whereas other canonical domains such as P1, HC-Pro, and CP were not detected, likely due to high sequence divergence. These findings expand the known diversity of Celavirus and offer new insights into its genome organization, host associations, and evolutionary position within the Potyviridae.
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