Mitovirus: Difference between revisions
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'''''Mitovirus''''' is a genus of [[Positive-strand RNA virus|positive-strand RNA viruses]], in the family '''''Mitoviridae'''''. Fungi serve as natural hosts. There are five species in the genus including the type species ''[[Cryphonectria mitovirus 1]]''.<ref name=ViralZone>{{cite web|title=Viral Zone|url=http://viralzone.expasy.org/all_by_species/304.html|publisher=ExPASy|accessdate=15 June 2015}}</ref><ref name=ictv >{{cite web|url=https://talk.ictvonline.org/taxonomy/|title=Virus Taxonomy: 2019 Release|last=|first=|date=|website=talk.ictvonline.org|publisher=International Committee on Taxonomy of Viruses|access-date=25 April 2020|quote=}}</ref> |
'''''Mitovirus''''' is a genus of [[Positive-strand RNA virus|positive-strand RNA viruses]], in the family '''''Mitoviridae'''''. [[Fungus|Fungi]] serve as natural hosts. There are five species in the genus including the type species ''[[Cryphonectria mitovirus 1]]''.<ref name=ViralZone>{{cite web|title=Viral Zone|url=http://viralzone.expasy.org/all_by_species/304.html|publisher=ExPASy|accessdate=15 June 2015}}</ref><ref name=ictv >{{cite web|url=https://talk.ictvonline.org/taxonomy/|title=Virus Taxonomy: 2019 Release|last=|first=|date=|website=talk.ictvonline.org|publisher=International Committee on Taxonomy of Viruses|access-date=25 April 2020|quote=}}</ref> |
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==Structure== |
==Structure== |
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Mitoviruses have no true virion. They do not have structural proteins or a [[capsid]].<ref name=ViralZone /> |
Mitoviruses have no true virion. They do not have structural proteins or a [[capsid]].<ref name=ViralZone /> |
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== Genome == |
== Genome == |
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Mitoviruses have nonsegmented, linear, [[Sense (molecular biology)|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.<ref name="ViralZone3">{{cite web|title=Viral Zone|url=http://viralzone.expasy.org/all_by_species/303.html|accessdate=15 June 2015|publisher=ExPASy}}</ref> |
Mitoviruses have nonsegmented, linear, [[Sense (molecular biology)|positive-sense]], single-stranded [[RNA genome|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.<ref name="ViralZone3">{{cite web|title=Viral Zone|url=http://viralzone.expasy.org/all_by_species/303.html|accessdate=15 June 2015|publisher=ExPASy}}</ref> |
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==Life cycle== |
==Life cycle== |
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Revision as of 07:24, 28 September 2020
| Mitovirus | |
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| Mitoviruses have no capsid or viral envelope, RNA genome and RdRp form a naked ribonucleoprotein complex | |
Virus classification 
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| (unranked): | Virus |
| Realm: | Riboviria |
| Kingdom: | Orthornavirae |
| Phylum: | Lenarviricota |
| Class: | Howeltoviricetes |
| Order: | Cryppavirales |
| Family: | Mitoviridae |
| Genus: | Mitovirus |
| Species | |
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 including the type species Cryphonectria mitovirus 1.[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]
- Mitovridae
- Mitovirus
- Cryphonectria mitovirus 1
- Ophiostoma mitovirus 4
- Ophiostoma mitovirus 5
- Ophiostoma mitovirus 6
- Ophiostoma mitovirus 3a
- Mitovirus
References
- ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015.
- ^ a b "Virus Taxonomy: 2019 Release". talk.ictvonline.org. International Committee on Taxonomy of Viruses. Retrieved 25 April 2020.
- ^ "Viral Zone". ExPASy. Retrieved 15 June 2015.