Mitoviridae | |
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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]
Mitoviruses have no true virion. They do not have structural proteins or a capsid. [1]
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]
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]
The family contains four genera: [2]