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Mitovirus
Family of viruses From Wikipedia, the free encyclopedia
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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]
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Structure
Mitoviruses have no true virion. They do not have structural proteins or a capsid.[1]
Genome
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
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
The family contains four genera:[2]
- Duamitovirus
- Kvaramitovirus
- Triamitovirus
- Unuamitovirus
References
External links
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