Aquabirnavirus is a genus of viruses, in the family Birnaviridae.[1] Salmonid fish serve as natural hosts. There are three species in this genus. A disease associated with this genus, Infectious pancreatic necrosis (IPN) in salmonid fish, causes significant losses to the aquaculture industry. Chronic infection in adults, and acute viral disease in young salmonid fish can occur.[2][3]
| Aquabirnavirus | |
|---|---|
Virus classification 
| |
| (unranked): | Virus |
| Realm: | Riboviria |
| Kingdom: | Orthornavirae |
| Phylum: | incertae sedis |
| Family: | Birnaviridae |
| Genus: | Aquabirnavirus |
| Species | |
Taxonomy
editThe genus contains the following species:[4]
Structure
editViruses in Aquabirnavirus are non-enveloped, with icosahedral and single-shelled geometries, and T=13 symmetry. The diameter is around 70 nm. Genomes are linear and segmented, around 2.7-3kb in length. The genome codes for 5 proteins.[2][3]
| Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
|---|---|---|---|---|---|
| Aquabirnavirus | Icosahedral | T=13 | Non-enveloped | Linear | Segmented |
Life cycle
editViral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the double-stranded RNA virus replication model. Double-stranded RNA virus transcription is the method of transcription. Salmonid fish serve as the natural host. Transmission routes are contact.[2][3]
| Genus | Host details | Tissue tropism | Entry details | Release details | Replication site | Assembly site | Transmission |
|---|---|---|---|---|---|---|---|
| Aquabirnavirus | Salmonid fish | None | Cell receptor endocytosis | Budding | Cytoplasm | Cytoplasm | Contact |
References
edit- ^ Delmas, B; Attoui, H; Ghosh, S; Malik, YS; Mundt, E; Vakharia, VN; ICTV Report, Consortium (January 2019). "ICTV virus taxonomy profile: Birnaviridae". The Journal of General Virology. 100 (1): 5–6. doi:10.1099/jgv.0.001185. PMID 30484762.
- ^ a b c "ICTV Report Birnaviridae".
- ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015.
- ^ "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 21 May 2021.