Ictavirus, formerly called Ictalurivirus, is a genus of viruses in the order Herpesvirales, in the family Alloherpesviridae. Fish serve as natural hosts. There are three species in this genus. Diseases associated with this genus include: channel catfish disease.[1][2]
| Ictavirus | |
|---|---|
Virus classification  | |
| (unranked): | Virus |
| Realm: | Duplodnaviria |
| Kingdom: | Heunggongvirae |
| Phylum: | Peploviricota |
| Class: | Herviviricetes |
| Order: | Herpesvirales |
| Family: | Alloherpesviridae |
| Genus: | Ictavirus |
| Species | |
|
See text | |
Species
editThe genus consists of the following species, listed by scientific name and followed by common name:[2][3]
- Ictavirus acipenseridallo2, Acipenserid herpesvirus 2
- Ictavirus ictaluridallo1, Channel catfish virus
- Ictavirus ictaluridallo2, Ictalurid herpesvirus 2
Structure
editViruses in Ictavirus are enveloped, with icosahedral and spherical to pleomorphic geometries, and T=16 symmetry. The diameter is around 150-200 nm. Genomes are linear and non-segmented, around 134kb in length.[1]
| Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
|---|---|---|---|---|---|
| Ictavirus | Spherical pleomorphic | T=16 | Enveloped | Circular | Monopartite |
Life cycle
editViral replication is nuclear, and is lysogenic. Entry into the host cell is achieved by attachment of the viral glycoproteins to host receptors, which mediates endocytosis. DNA templated transcription is the method of transcription. Fish serve as the natural host. Transmission routes are passive diffusion.[1]
| Genus | Host details | Tissue tropism | Entry details | Release details | Replication site | Assembly site | Transmission |
|---|---|---|---|---|---|---|---|
| Ictavirus | Fish | None | Glycoprotiens | Budding | Nucleus | Nucleus | Passive diffusion |
References
edit- 1 2 3 "Viral Zone". ExPASy. Retrieved 15 June 2015.
- 1 2 "Virus Taxonomy: 2023 Release". ictv.global. International Committee on Taxonomy of Viruses. 30 October 2024. Retrieved 28 January 2025.
- ↑ "Family: Alloherpesviridae (Interim Report)". International Committee on Taxonomy of Viruses. Retrieved 1 May 2026.
