2024 taxonomic update for the families Naryaviridae, Nenyaviridae, and Vilyaviridae.

Autor: Varsani A; The Biodesign Center for Fundamental and Applied Microbiomics, Center for Evolution and Medicine, School of Life Sciences, Arizona State University, Tempe, AZ, 85287, USA. arvind.varsani@asu.edu.; Structural Biology Research Unit, Department of Integrative Biomedical Sciences, University of Cape Town, Cape Town, 7925, South Africa. arvind.varsani@asu.edu., Hopkins A; The Biodesign Center for Fundamental and Applied Microbiomics, Center for Evolution and Medicine, School of Life Sciences, Arizona State University, Tempe, AZ, 85287, USA., Lund MC; The Biodesign Center for Fundamental and Applied Microbiomics, Center for Evolution and Medicine, School of Life Sciences, Arizona State University, Tempe, AZ, 85287, USA., Krupovic M; Institut Pasteur, Université Paris Cité, CNRS UMR6047, Archaeal Virology Unit, Paris, France. mart.krupovic@pasteur.fr.
Jazyk: angličtina
Zdroj: Archives of virology [Arch Virol] 2024 Dec 13; Vol. 170 (1), pp. 18. Date of Electronic Publication: 2024 Dec 13.
DOI: 10.1007/s00705-024-06186-1
Abstrakt: The families Naryaviridae (order Rivendellvirales), Nenyaviridae (order Rohanvirales), and Vilyaviridae (order Cirlivirales), all within the class Arfiviricetes of the phylum Cressdnaviricota, include single-stranded DNA viruses associated with protozoan parasites of the genera Entamoeba and Giardia as well as viruses found in various environmental samples, also likely infecting protozoans. Here, we provide a taxonomic update for these three families, which were recently expanded with multiple new members. In particular, we established seven new genera and nine new species in the family Naryaviridae, one new genus with one new species in the family Nenyaviridae, and three new genera and nine new species in the family Vilyaviridae. We also summarize the genomic properties and protein characteristics, including conserved motifs of the rolling-circle replication initiation proteins, of the viruses in the three families. Notably, the high GC content of vilyavirids (51-61%) and considerably lower GC content of naryavirids and nenyavirids (33-44%) appear to represent an adaptation to their hosts, Giardia and Entamoeba species, respectively.
Competing Interests: Declarations. Conflict of interest: The authors declare there are no conflicts of interest. Ethical approval: The research did not involve human participants or animals.
(© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature.)
Databáze: MEDLINE
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