Quadriviridae: Difference between revisions
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{{Short description|Family of viruses}} |
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{{Use dmy dates|date=April 2017}} |
{{Use dmy dates|date=April 2017}} |
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{{Virusbox |
{{Virusbox |
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| taxon = Quadrivirus |
| taxon = Quadrivirus |
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| image = ODR.Quadri.fig1.png |
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| image_caption = (Left) [[Electron micrograph]]s of the Rosellinia necatrix quadrivirus 1, bar = 50 nm. (Right) Three-dimensional [[cryo-electron microscopy]] reconstruction of RnQV1 virions at 8Å resolution. |
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'''''Quadriviridae''''' is a family of [[viruses]] with a single genus '''''Quadrivirus'''''.<ref>{{cite journal |last1=Chiba |first1=S |last2=Castón |first2=JR |last3=Ghabrial |first3=SA |last4=Suzuki |first4=N |last5=Ictv Report |first5=Consortium |title=ICTV Virus Taxonomy Profile: Quadriviridae. |journal=The Journal of General Virology |date=November 2018 |volume=99 |issue=11 |pages= |
'''''Quadriviridae''''' is a family of [[double-stranded RNA viruses]] with a single genus '''''Quadrivirus'''''.<ref>{{cite journal |last1=Chiba |first1=S |last2=Castón |first2=JR |last3=Ghabrial |first3=SA |last4=Suzuki |first4=N |last5=Ictv Report |first5=Consortium |title=ICTV Virus Taxonomy Profile: Quadriviridae. |journal=The Journal of General Virology |date=November 2018 |volume=99 |issue=11 |pages=1480–1481 |doi=10.1099/jgv.0.001152 |pmid=30265238|doi-access=free }}</ref> The [[fungi]] ''[[Rosellinia necatrix]]'' serves as a natural [[host (biology)|host]]. The name of the group derives from the ''quadri''partite genome of its members where in [[Latin]] ''quad'' means four. There is only one species in this family: ''Rosellinia necatrix quadrivirus 1''.<ref name="ICTV">{{cite web |title=ICTV Report Quadriviridae |url=http://www.ictv.global/report/quadriviridae}}</ref><ref name="ViralZone">{{cite web|title=Viral Zone|url=http://viralzone.expasy.org/all_by_species/4957.html|publisher=ExPASy|access-date=13 August 2015}}</ref> |
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<big>'''Group: dsRNA'''</big> |
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{{Collapsible list|title= <big>Order: Unassigned</big> |
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|1={{Collapsible list| framestyle=border:none; padding:1.0em;|title=Family: Quadriviridae |
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|1={{hidden begin|title=<small>Genus: Quadrivirus</small>}} |
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*<small>'''''Rosellinia necatrix quadrivirus 1'''''</small> |
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{{hidden end}} |
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<ref name=ICTV /> |
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==Structure== |
==Structure== |
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[[File:Quadriviridae virion.jpg|thumb|Schematic diagram of ''Quadriviridae'' virions. The four genomic segments may be separately encapsulated.<ref name=ViralZone/>]] |
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Viruses in Quadriviridae are [[Virus#Structure|non-enveloped]]. The diameter is around 48 nm. [[Virus#Genome|Genomes]] are linear and segmented, around 16.8kb in length. The genome codes for 4 proteins.<ref name=ICTV /><ref name=ViralZone/> |
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[[Mycovirus]]es in the family ''Quadriviridae'' have a [[Virus#Structure|non-enveloped]] isometric [[capsid]] which consists of 60 copies of heterodimers of the structural proteins P2 and P4. The diameter of the capsid is around 48 nm.<ref name="ICTV" /><ref name="ViralZone" /> |
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==Genome== |
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{| class="wikitable sortable" style="text-align:center" |
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[[File:ODR.Quadri.fig3.v4.png|thumb|Genome of Rosellinia necatrix quadrivirus 1 ]] |
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Family member [[Virus#Genome|genomes]] are composed of double-stranded RNA. They are divided in to four segments which each code for a protein. The length of the different segments are between 3.5 and 5.0 kbp. The total genome is around 16.8 kbp. Inside the capsid with the genome there is also the [[RNA-dependent RNA polymerase]].<ref name=ICTV /><ref name=ViralZone/> |
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! Genus !! Structure || Symmetry !! Capsid !! Genomic arrangement !! Genomic segmentation |
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|Quadrivirus||||||Non-enveloped||Linear||Segmented |
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==Life cycle== |
==Life cycle== |
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Quadriviruses are transmitted internally. They are propagated during cell division and [[hypha]]l [[anastomosis]]. Viral replication occurs in the [[cytoplasm]]. It follows the [[Double-stranded RNA viruses|double-stranded RNA virus]] replication model. Double-stranded RNA virus transcription is the method of transcription. The fungi ''[[Rosellinia necatrix]]'' serves as a natural host.<ref name=ICTV /><ref name=ViralZone/> |
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{| class="wikitable sortable" style="text-align:center" |
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[[File:ODR.Quadri.Fig4.png-640x480.png|thumb|Phylogenetic tree of quadriviruses, chrysoviruses and some [[Totiviridae|totiviruses]]]] |
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The family ''Quadrivirdae'' has one genus ''Quadrivirus'' which contains the species:<ref>{{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=13 May 2021}}</ref> |
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! Genus !! Host details !! Tissue tropism !! Entry details !! Release details !! Replication site !! Assembly site !! Transmission |
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|Quadrivirus||Fungi||None||Unknown||Cytoplasmic exchange; hyphal anastomosis; sporogenesis||Unknown||Unknown||Cytoplasmic exchange; hyphal anastomosis; sporogenesis |
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==References== |
==References== |
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Latest revision as of 18:30, 25 July 2023
| Quadrivirus | |
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| (Left) Electron micrographs of the Rosellinia necatrix quadrivirus 1, bar = 50 nm. (Right) Three-dimensional cryo-electron microscopy reconstruction of RnQV1 virions at 8Å resolution. | |
Virus classification 
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| (unranked): | Virus |
| Realm: | Riboviria |
| Kingdom: | Orthornavirae |
| Phylum: | Duplornaviricota |
| Class: | Chrymotiviricetes |
| Order: | Ghabrivirales |
| Family: | Quadriviridae |
| Genus: | Quadrivirus |
Quadriviridae is a family of double-stranded RNA viruses with a single genus Quadrivirus.[1] The fungi Rosellinia necatrix serves as a natural host. The name of the group derives from the quadripartite genome of its members where in Latin quad means four. There is only one species in this family: Rosellinia necatrix quadrivirus 1.[2][3]
Structure[edit]
Mycoviruses in the family Quadriviridae have a non-enveloped isometric capsid which consists of 60 copies of heterodimers of the structural proteins P2 and P4. The diameter of the capsid is around 48 nm.[2][3]
Genome[edit]
Family member genomes are composed of double-stranded RNA. They are divided in to four segments which each code for a protein. The length of the different segments are between 3.5 and 5.0 kbp. The total genome is around 16.8 kbp. Inside the capsid with the genome there is also the RNA-dependent RNA polymerase.[2][3]
Life cycle[edit]
Quadriviruses are transmitted internally. They are propagated during cell division and hyphal anastomosis. Viral replication occurs in the cytoplasm. It follows the double-stranded RNA virus replication model. Double-stranded RNA virus transcription is the method of transcription. The fungi Rosellinia necatrix serves as a natural host.[2][3]
Taxonomy[edit]
The family Quadrivirdae has one genus Quadrivirus which contains the species:[4]
- Rosellinia necatrix quadrivirus 1
References[edit]
- ^ Chiba, S; Castón, JR; Ghabrial, SA; Suzuki, N; Ictv Report, Consortium (November 2018). "ICTV Virus Taxonomy Profile: Quadriviridae". The Journal of General Virology. 99 (11): 1480–1481. doi:10.1099/jgv.0.001152. PMID 30265238.
- ^ a b c d "ICTV Report Quadriviridae".
- ^ a b c d e "Viral Zone". ExPASy. Retrieved 13 August 2015.
- ^ "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 13 May 2021.