Rosavirus
| Rosavirus | |
|---|---|
Virus classification  | |
| (unranked): | Virus |
| Realm: | Riboviria |
| Kingdom: | Orthornavirae |
| Phylum: | Pisuviricota |
| Class: | Pisoniviricetes |
| Order: | Picornavirales |
| Family: | Picornaviridae |
| Genus: | Rosavirus |
Rosavirus is a genus of viruses in the order Picornavirales, in the family Picornaviridae. Human and rodents serve as natural hosts. There are three species in this genus.[1][2]
Taxonomy
The genus contains the following species:[2][3]
- Rosavirus acaliforni; Rosavirus A1
- Rosavirus brorati; Rosavirus B1, also called Norway rat rosavirus
- Rosavirus chewhibe; Rosavirus C1, also called Rat rosavirus
Structure
Viruses in Rosavirus are non-enveloped, with icosahedral, spherical, and round geometries, and T=pseudo3 symmetry. The diameter is around 30 nm. Genomes are linear and non-segmented, around 9kb in length.[1]
| Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
|---|---|---|---|---|---|
| Rosavirus | Icosahedral | Pseudo T=3 | Non-enveloped | Linear | Monopartite |
Life cycle
Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment of the virus to host receptors, which mediates endocytosis. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription is the method of transcription. The virus exits the host cell by lysis, and viroporins. Human and rodents serve as the natural host.[1]
| Genus | Host details | Tissue tropism | Entry details | Release details | Replication site | Assembly site | Transmission |
|---|---|---|---|---|---|---|---|
| Rosavirus | Human, rodents | None | Cell receptor endocytosis | Lysis | Cytoplasm | Cytoplasm | Unknown |
References
- 1 2 3 "Viral Zone". ExPASy. Retrieved 13 August 2015.
- 1 2 "Virus Taxonomy: 2024 Release". International Committee on Taxonomy of Viruses. Retrieved 12 April 2025.
- ↑ "Species List: Picornaviridae". International Committee on Taxonomy of Viruses. Retrieved 12 April 2025.