Victorivirus
| Victorivirus | |
|---|---|
| |
| Capsid structure of Helminthosporium victoriae virus 190S (HvV190S) | |
| |
| Cryo-EM of HvV190S virions. | |
Virus classification 
| |
| (unranked): | Virus |
| Realm: | Riboviria |
| Kingdom: | Orthornavirae |
| Phylum: | Duplornaviricota |
| Class: | Chrymotiviricetes |
| Order: | Ghabrivirales |
| Family: | Totiviridae |
| Genus: | Victorivirus |
Victorivirus is a genus of viruses, in the family Totiviridae. Filamentous fungi serve as natural hosts. There are 14 species in this genus.[1][2]
Structure
[edit]Viruses in Victorivirus are non-enveloped, with icosahedral geometries, and T=2 symmetry. The diameter is around 40 nm. Genomes are linear, around 4.6-6.7kb in length. The genome has 2 open reading frames.[1]
| Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
|---|---|---|---|---|---|
| Victorivirus | Icosahedral | T=2 | Non-enveloped | Linear |
Life cycle
[edit]Viral replication is cytoplasmic. Entry into the host cell is achieved by virus remains intracellular. Replication follows the double-stranded RNA virus replication model. Double-stranded RNA virus transcription is the method of transcription. Translation takes place by RNA termination-reinitiation. The virus exits the host cell by cell to cell movement. Filamentous fungi serve as the natural host.[1]
| Genus | Host details | Tissue tropism | Entry details | Release details | Replication site | Assembly site | Transmission |
|---|---|---|---|---|---|---|---|
| Victorivirus | Fungi | None | Unknown | Unknown | Cytoplasm | Cytoplasm | Unknown |
Taxonomy
[edit]The genus Victorivirus includes the following species:[2]
- Aspergillus foetidus slow virus 1
- Beauveria bassiana victorivirus 1
- Chalara elegans RNA Virus 1
- Coniothyrium minitans RNA virus
- Epichloe festucae virus 1
- Gremmeniella abietina RNA virus L1
- Helicobasidium mompa totivirus 1-17
- Helminthosporium victoriae virus 190S
- Magnaporthe oryzae virus 1
- Magnaporthe oryzae virus 2
- Rosellinia necatrix victorivirus 1
- Sphaeropsis sapinea RNA virus 1
- Sphaeropsis sapinea RNA virus 2
- Tolypocladium cylindrosporum virus 1
References
[edit]- ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015.
- ^ a b "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 13 May 2021.