Family: Haloferuviridae (interim Report)

This is a summary page created by the ICTV Report Editors using information from associated Taxonomic Proposals and the Master Species List.

Edited by: Mart Krupovic
Posted: October 2023


The family Haloferuviridae includes dsDNA viruses infecting hyperhalophilic archaea of Haloferax and Halorubrum sp. (Table 1.Haloferuviridae). The family Haloferuviridae was established in 2022 (Master Species List 37).

Table 1.Haloferuviridae. Characteristics of members of the family Haloferuviridae.

ExampleHaloferax tailed virus 1 (MG550112), species Retbasiphovirus HFTV1, genus Retbasiphovirus
VirionIcosahedral capsid (50 nm) with long non-contractile tail (60 nm) (siphovirus-like morphology)
GenomeLinear, dsDNA genome of 35–38 kbp, circularly permuted
Host rangeHyperhalophilic archaea of Haloferax and Halorubrum sp.
TaxonomyRealm Duplodnaviria, kingdom Heunggongvirae, phylum Uroviricota, class Caudoviricetes, order Kirjokansivirales: 3 genera and 3 species
Figure 1.Haloferuviridae. Genome organisation of Halorubrum tailed virus 29, a member of the family Haloferuviridae. Boxes indicate open reading frames as annotated on GenBank accession MG550112.
Figure 2.Haloferuviridae. Relationships of the taxa connected to the family Haloferuviridae.

Derivation of name

Haloferuviridae: Referring to the hosts; truncation of Haloferax and Halorubrum