Seadornavirus
From Wikipedia, the free encyclopedia
| Seadornavirus | |
|---|---|
 | |
| Electron micrograph of Banna virus | |
Virus classification  | |
| (unranked): | Virus |
| Realm: | Riboviria |
| Kingdom: | Orthornavirae |
| Phylum: | Duplornaviricota |
| Class: | Resentoviricetes |
| Order: | Reovirales |
| Family: | Sedoreoviridae |
| Genus: | Seadornavirus |
Seadornavirus is a genus of viruses, in the order Reovirales, in the family Sedoreoviridae. Human, cattle, pig, and mosquitoes serve as natural hosts.[1][2] There are three species in this genus: Banna virus (BAV), Kadipiro virus, and Liao ning virus. Each of these viruses has been isolated from Aedes, Anopheles and Culex mosquito populations, but only BAV has been shown to cause infection in humans, in which the symptoms are similar to Japanese encephalitis—fever, malaise, and encephalitis.[3] The word seadornavirus is a portmanteau, meaning Southeast Asian dodeca RNA virus.
The genus contains the following species, listed by scientific name and followed by the exemplar virus of the species:[2][4]
- Seadornavirus bannaense, Banna virus
- Seadornavirus kadipiroense, Kadipiro virus
- Seadornavirus liaoningense, Liao ning virus
Structure
Viruses in Seadornavirus are non-enveloped, with icosahedral geometries, and T=13, T=2 symmetry. The diameter is around 60-70 nm. Genomes are linear and segmented. Segments range in length from 862 to 3747 base pairs, totaling 21 kb in length. The genome codes for 12 proteins.[1]
| Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
|---|---|---|---|---|---|
| Seadornavirus | Icosahedral | T=13, T=2 | Non-enveloped | Linear | Segmented |