Genus: Hexartovirus


Genus: Hexartovirus

Distinguishing features

Members of the genus Hexartovirus infect sea lice (copepods) or barnacles.

Lepeophtheirus salmonis negative-strand RNA virus 1 (LsNSRV-1) was detected in salmon lice infecting farmed Atlantic salmon in Norway. LsNSRV-1 was present in various tissues of male and female salmon lice and was detected in all developmental stages. Viral RNA is detected in both the cytoplasm and nucleoli of infected cells (Økland et al., 2019).

Virion

See discussion under family description.

Genome organization and replication

See discussion under family description.

Biology

See discussion under family description.

Species demarcation criteria

No species demarcation criteria have been established beyond virus phylogeny and hosts. Viruses classified in the two Hexartovirus species differ by 71% in L amino acid sequence, although sequence divergence is not currently used as a formal species demarcation criterion.

Member species

Exemplar isolate of the species
SpeciesVirus nameIsolateAccession numberRefSeq numberAvailable sequenceVirus Abbrev.
Barnacle hexartovirusBěihǎi barnacle virus 8KX884410NC_032430Complete coding genomeBhBV-8
Caligid hexartovirusLepeophtheirus salmonis negative stranded RNA virus 1LS24MG489864Complete genomeLsNSRV-1

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