Mitovirus
| Mitoviridae | |
|---|---|
 | |
| Mitoviruses have no capsid or viral envelope, RNA genome and RdRp form a naked ribonucleoprotein complex | |
Virus classification  | |
| (unranked): | Virus |
| Realm: | Riboviria |
| Kingdom: | Orthornavirae |
| Phylum: | Lenarviricota |
| Class: | Howeltoviricetes |
| Order: | Cryppavirales |
| Family: | Mitoviridae |
| Genera | |
Mitoviruses are a family of positive-strand RNA viruses that constitute the family Mitoviridae. Fungi serve as natural hosts. There are four genera in the family.[1][2]
Structure
[edit]Mitoviruses have no true virion. They do not have structural proteins or a capsid.[1]
Genome
[edit]Mitoviruses have nonsegmented, linear, positive-sense, single-stranded RNA genomes. The genome has one open reading frame which encodes the RNA-dependent RNA polymerase (RdRp). The genome is associated with the RdRp in the cytoplasm of the fungi host and forms a naked ribonucleoprotein complex.[1]
Life cycle
[edit]Viral replication is cytoplasmic. Replication follows the positive-strand RNA virus replication model. Positive-strand RNA virus transcription is the method of transcription. The virus exits the host cell by cell-to-cell movement. Fungi serve as the natural host. Transmission routes are parental and sexual.[1]
Taxonomy
[edit]The family contains four genera:[2]
References
[edit]- 1 2 3 4 "Mitoviridae". ViralZone. Swiss Institute of Bioinformatics. Retrieved 4 May 2025.
- 1 2 "Virus Taxonomy: 2024 Release". International Committee on Taxonomy of Viruses. Retrieved 4 May 2025.