Narnavirus: Difference between revisions
Content deleted Content added
Velayinosu (talk | contribs) →Taxonomy: minor cleanup |
No edit summary |
||
| Line 7: | Line 7: | ||
| taxon = Narnavirus |
| taxon = Narnavirus |
||
| subdivision_ranks = Species |
| subdivision_ranks = Species |
||
| subdivision = |
| subdivision = |
||
<center> [[#Taxonomy|See text]] </center> |
|||
* ''[[Saccharomyces 20S RNA narnavirus]]'' |
|||
* ''[[Saccharomyces 23S RNA narnavirus]]'' |
|||
}} |
}} |
||
'''''Narnavirus''''' is a genus of [[Positive-strand RNA virus|positive-strand RNA viruses]] |
'''''Narnavirus''''' is a genus of [[Positive-strand RNA virus|positive-strand RNA viruses]] in the family '''''Narnaviridae'''''. [[Fungus|Fungi]] serve as natural hosts. There are two species in this genus.<ref name=ICTV /><ref name=ViralZone>{{cite web|title=Viral Zone|url=http://viralzone.expasy.org/all_by_species/303.html|publisher=ExPASy|access-date=15 June 2015}}</ref> Narnaviruses have been shown to be required for sexual reproduction of ''[[Rhizopus microsporus]]''.<ref>{{cite journal | year = 2020 | title = Narnaviruses: Novel players in fungal–bacterial symbioses | authors = Espino-Vázquez AN, Bermúdez-Barrientos JR, Cabrera-Rangel JF, Córdova-López G, Cardoso-Martínez F, Martínez-Vázquez A, Camarena-Pozos DA, Mondo SJ, Pawlowska TE, Abreu-Goodger C, Partida-Martínez LP. | journal = The ISME Journal | doi = 10.1038/s41396-020-0638-y}}</ref> |
||
== |
== Virology == |
||
===Structure=== |
|||
Narnaviruses have no true virion. They do not have structural proteins or a [[capsid]].<ref name="nocapsid">{{Cite book|last1=Dolja|first1=V. V.|title=ELS|last2=Koonin|first2=E. V.|year=2012|isbn=978-0470016176|chapter=Capsid-Less RNA Viruses|doi=10.1002/9780470015902.a0023269}}</ref> |
Narnaviruses have no true virion. They do not have structural proteins or a [[capsid]].<ref name="nocapsid">{{Cite book|last1=Dolja|first1=V. V.|title=ELS|last2=Koonin|first2=E. V.|year=2012|isbn=978-0470016176|chapter=Capsid-Less RNA Viruses|doi=10.1002/9780470015902.a0023269}}</ref> |
||
== Genome == |
=== Genome === |
||
Narnaviruses 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 and forms a naked [[ribonucleoprotein]] complex.<ref name="ViralZone" /> |
Narnaviruses 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 and forms a naked [[ribonucleoprotein]] complex.<ref name="ViralZone" /> |
||
== |
===Replication 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.<ref name=ViralZone /> |
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 /> |
||
| Line 27: | Line 28: | ||
The genus has the following two species:<ref name=ICTV >{{cite web |title=Virus Taxonomy: 2020 Release |url=https://talk.ictvonline.org/taxonomy/ |publisher=International Committee on Taxonomy of Viruses (ICTV) |date=March 2021 |access-date=16 May 2021}}</ref> |
The genus has the following two species:<ref name=ICTV >{{cite web |title=Virus Taxonomy: 2020 Release |url=https://talk.ictvonline.org/taxonomy/ |publisher=International Committee on Taxonomy of Viruses (ICTV) |date=March 2021 |access-date=16 May 2021}}</ref> |
||
* '' |
* ''Saccharomyces 20S RNA narnavirus'' |
||
* '' |
* ''Saccharomyces 23S RNA narnavirus'' |
||
==References== |
==References== |
||
Revision as of 12:09, 15 June 2021
| Narnavirus | |
|---|---|
| |
| |
| Narnaviruses 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: | Amabiliviricetes |
| Order: | Wolframvirales |
| Family: | Narnaviridae |
| Genus: | Narnavirus |
| Species | |
|
| |
Narnavirus is a genus of positive-strand RNA viruses in the family Narnaviridae. Fungi serve as natural hosts. There are two species in this genus.[1][2] Narnaviruses have been shown to be required for sexual reproduction of Rhizopus microsporus.[3]
Virology
Structure
Narnaviruses have no true virion. They do not have structural proteins or a capsid.[4]
Genome
Narnaviruses 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.[2]
Replication 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.[2]
Taxonomy
The genus has the following two species:[1]
- Saccharomyces 20S RNA narnavirus
- Saccharomyces 23S RNA narnavirus
References
- ^ a b "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 16 May 2021.
- ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015.
- ^ "Narnaviruses: Novel players in fungal–bacterial symbioses". The ISME Journal. 2020. doi:10.1038/s41396-020-0638-y.
{{cite journal}}: Cite uses deprecated parameter|authors=(help) - ^ Dolja, V. V.; Koonin, E. V. (2012). "Capsid-Less RNA Viruses". ELS. doi:10.1002/9780470015902.a0023269. ISBN 978-0470016176.