Genus: Berhavirus


Genus: Berhavirus

Distinguishing features

Species are placed in the genus based upon phylogeny and host range.

Virion

Morphology

Not reported.

Nucleic acid

Non-segmented, negative-sense RNA.

Proteins

Berhavirus genomes encode up to 5 proteins including a putative nucleocapsid protein, glycoprotein and RNA-directed RNA polymerase identified on the basis of sequence similarity and structural properties shared with mononegavirus homologues, in addition to one or more hypothetical proteins of unknown function.

Genome organization and replication

Berhaviruses have negative-sense RNA genomes of 9.4–10.7 kb (Shi et al., 2016).

Antigenicity

Not reported.

Biology

Berhavirus genome sequences were isolated from invertebrate marine animals including echinoderms and sipunculids (marine worms).

Species demarcation criteria

Due to the small number of genus members, no firm species demarcation criteria have been established beyond phylogeny and the hosts the viruses infect.

Member species

SpeciesVirus name(s)Exemplar isolateExemplar accession numberExemplar RefSeq numberAvailable sequenceOther isolatesOther isolate accession numbersVirus abbreviationIsolate abbreviation
Beihai berhavirusBěihǎi rhabdo-like virus 4BHJP58499KX884406NC_032543Complete coding genomeBhRLV-4
Echinoderm berhavirusBěihǎi rhabdo-like virus 5BHJP63888 KX884407NC_032544Complete coding genomeBhRLV-5
Sipunculid berhavirusBěihǎi rhabdo-like virus 3BHNXC39077KX884408Complete coding genomeBhRLV-3

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

Derivation of names

Berhavirus: from Běihǎi rhabdo-like virus 3 and virus the suffix for a genus