Species List: Anelloviridae

Virus names, the choice of exemplar isolates, and virus abbreviations, are not official ICTV designations
 Exemplar isolate of the species

Resources: Anelloviridae

Figure 3 Anelloviridae

Full ORF1 alignment (FASTA format)

Trimmed ORF1 alignment (FASTA format) as used for tree

Treefile (Newick format)

References: Anelloviridae

Boisvert, N., Thurmond, S., Elenberger, C., Jeraldo, P., Prince, C., Sutherland, N., Melo, J., Tsheowang, K., Dodier, C. & Nogalski, M. (2025). Anellovirus protein encoded by ORF2/3 functions as the viral replication initiation protein. Proc Natl Acad Sci U S A 2025; 122:e2516306122. [PubMed]

Citation: Anelloviridae

A summary of this ICTV Report chapter will be published as an ICTV Virus Taxonomy Profile article in the Journal of General Virology, and should be cited when referencing this online chapter as follows:

Simona Kraberger, Tanja Opriessnig, Fabrizio Maggi, Vladimir Celer, Hiroaki Okamoto, Lia van der Hoek, Philippe Biagini, Mart Krupovic and Arvind Varsani (2026): ICTV Virus Taxonomy Profile: Anelloviridae 2026, Journal of General Virology (in press)

Authors: Anelloviridae

Family: Anelloviridae

Genus: Zetatorquevirus

Distinguishing features

The only species in the genus Zetatorquevirus includes a virus with a genome of about 3.7 kb that was identified in a non-human primate (family Aotidae).

Demarcation criteria for taxa within the genus

Different species in the genus have orf1 genes with <69% pairwise identity.