Cryppavirales

Mitovirus
	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
Genus:	Mitovirus
Species
	See text

Mitovirus is a genus of positive-strand RNA viruses, in the family Mitoviridae. Fungi serve as natural hosts. There are five species in the genus.^[1]^[2]

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.^[3]

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

There are five species in the genus:^[2]

References

^ ^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 16 May 2021.
^ "Viral Zone". ExPASy. Retrieved 15 June 2015.

External links

Zdroj:https://en.wikipedia.org?pojem=Cryppavirales
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[ViralZone-1] "Viral Zone". ExPASy. Retrieved 15 June 2015.

[ictv-2] "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 16 May 2021.

[ViralZone3-3] "Viral Zone". ExPASy. Retrieved 15 June 2015.

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