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{{Short description|Genus of viruses}}
{{taxobox
{{Use dmy dates|date=April 2017}}
| virus_group = iv
{{virusbox
| familia = ''[[Narnaviridae]]''
| image = RdRp_and_RNA_genome.png
| genus = '''''Mitovirus'''''
| image_caption = Mitoviruses have no [[capsid]] or [[viral envelope]], [[RNA]] genome and [[RNA-dependent RNA polymerase|RdRp]] form a naked [[ribonucleoprotein|ribonucleoprotein complex]]
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| subdivision_ranks = Type Species
| taxon = Mitovirus
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| subdivision =
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| subdivision_ranks = Species
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*''[[Cryphonectria mitovirus 1]]''
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| subdivision = [[#Taxonomy|See text]]
}}
}}


'''''Mitovirus''''' is a genus of [[viruses]], in the family [[Narnaviridae]]. Fungi serve as natural hosts. There are currently five species in this 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|last1=ICTV|title=Virus Taxonomy: 2014 Release|url=http://ictvonline.org/virusTaxonomy.asp|accessdate=15 June 2015}}</ref>
'''''Mitovirus''''' is a genus of [[positive-strand RNA virus]]es, in the family '''''Mitoviridae'''''. [[Fungus|Fungi]] serve as natural hosts. There are five species in the genus.<ref name=ViralZone>{{cite web|title=Viral Zone|url=http://viralzone.expasy.org/all_by_species/304.html|publisher=ExPASy|access-date=15 June 2015}}</ref><ref name=ictv >{{cite web |title=Virus Taxonomy: 2020 Release |url=https://ictv.global/taxonomy |publisher=International Committee on Taxonomy of Viruses (ICTV) |date=March 2021 |access-date=16 May 2021}}</ref>

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==Taxonomy==
<big>'''Group: ssRNA(+)'''</big>
{{Collapsible list|title= <big>Order: Unassigned</big>
|1={{Collapsible list| framestyle=border:none; padding:1.0em;|title=Family: [[Narnaviridae]]
|1={{hidden begin|title=<small>Genus: Mitovirus</small>}}
*<small>'''''[[Cryphonectria mitovirus 1]]'''''</small>
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*<small>[[Ophiostoma mitovirus 4]]</small>
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*<small>[[Ophiostoma mitovirus 5]]</small>
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*<small>[[Ophiostoma mitovirus 6]]</small>
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*<small>[[Ophiostoma mitovirus 3a]]</small>
{{hidden end}}
}}
}}<ref name=ICTV />


==Structure==
==Structure==
Genomes are linear and non-segmented.<ref name=ViralZone />
Mitoviruses have no true virion. They do not have structural proteins or a [[capsid]].<ref name=ViralZone />


== Genome ==
{| class="wikitable sortable" style="text-align:center"
Mitoviruses have nonsegmented, linear, [[Sense (molecular biology)|positive-sense]], single-stranded [[RNA genome]]s. 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|access-date=15 June 2015|publisher=ExPASy}}</ref>
|-
! Genus !! Structure || Symmetry !! Capsid !! Genomic Arrangement !! Genomic Segmentation
|-
|Mitovirus||No structural proteins||||Non-Enveloped||Linear||Monopartite
|}


==Life Cycle==
==Life cycle==
Viral replication is cytoplasmic. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription is the method of transcription. The virus exits the host cell by cell to cell movement.
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.<ref name=ViralZone />
Fungi serve as the natural host.<ref name=ViralZone />


⚫
==Taxonomy==
{| class="wikitable sortable" style="text-align:center"
There are five species in the genus:<ref name="ictv" />
|-
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* ''[[Cryphonectria mitovirus 1]]''
! Genus !! Host Details !! Tissue Tropism !! Entry Details !! Release Details !! Replication Site !! Assembly Site !! Transmission
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* ''[[Ophiostoma mitovirus 4]]''
|-
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* ''[[Ophiostoma mitovirus 5]]''
|Mitovirus||Fungi||None||Horizontal; vertical||None||Cytoplasm||Cytoplasm||Horizontal: mating; vertical: parental
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* ''[[Ophiostoma mitovirus 6]]''
|}
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* ''[[Ophiostoma mitovirus 3a]]''


==References==
==References==
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{{Baltimore classification}}
{{Baltimore classification}}


{{Taxonbar|from=Q18819838}}
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[[Category:Narnaviridae]]

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[[Category:Mycoviruses]]
[[Category:Virus genera]]

Latest revision as of 15:26, 6 April 2024

Mitovirus
Mitoviruses have no capsid or viral envelope, RNA genome and RdRp form a naked ribonucleoprotein complex
Virus classification Edit this 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

[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.[3]

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]

There are five species in the genus:[2]

References

[edit]
  1. ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015.
  2. ^ a b "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 16 May 2021.
  3. ^ "Viral Zone". ExPASy. Retrieved 15 June 2015.
[edit]
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