The genus Crustavirus includes three species. Wenzhou crustavirus is the type species. The exemplar isolate of the type species, Wēnzhōu crab virus 1 (WzCV-1) was first described during a landmark next-generation sequencing study in China. The virus was found in Asian paddle crabs (Charybdis japonica A. Milne-Edwards, 1861) yellowish brown crabs (Charybdis lucifera Fabricius, 1798) and stalked barnacles (Capitulum mitella Foster, 1980) (Li et al., 2015).
Non-segmented, negative-sense RNA.
Known crustavirus genome sequences encode at least three proteins, a putative nucleocapsid protein, glycoprotein and RNA-directed RNA polymerase identified on the basis of sequence similarity and structural properties shared with mononegavirus homologues.
Genome organization and replication
Crustavirus genome sequences were isolated from crabs and barnacles.
Derivation of names
Crustavirus: from Crustacea and virus, the suffix for a genus.
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.
|Species||Virus name||Isolate||Accession number||RefSeq number||Available sequence||Virus Abbrev.|
|Beihai crustavirus||Běihǎi rhabdo-like virus 6||BHJJX49420||KX884405||NC_032541||Complete coding genome||BhRLV-6|
|Wenling crustavirus||Wēnlǐng crustacean virus 12||WLJQ47777||KX884457||NC_032793||Complete coding genome||WlCV-12|
|Wenzhou crustavirus||Wēnzhōu crab virus 1||RBX2||KM817644||NC_031275||Complete coding genome||WzCV1|