Narnavirus: Difference between revisions
No edit summary |
|||
| Line 1: | Line 1: | ||
{{Use dmy dates|date=April 2017}} |
{{Use dmy dates|date=April 2017}} |
||
{{virusbox |
{{virusbox |
||
| image = 0074-0276-mioc-113-4-e170487-gf01-1.png |
|||
| image2 = Viruses-11-00233-g006b-top.png |
|||
| image2_caption = Narnavirus has no [[structural proteins]] or [[capsid]] only RNA genome and [[RNA-dependent RNA polymerase|RdRp]] |
|||
| taxon = Narnavirus |
| taxon = Narnavirus |
||
| type_species = ''[[Saccharomyces 20S RNA narnavirus]]''<ref name=ICTV>{{cite web|last1=ICTV|title=Virus Taxonomy: 2014 Release|url=http://ictvonline.org/virusTaxonomy.asp|accessdate=15 June 2015}}</ref> |
| type_species = ''[[Saccharomyces 20S RNA narnavirus]]''<ref name=ICTV>{{cite web|last1=ICTV|title=Virus Taxonomy: 2014 Release|url=http://ictvonline.org/virusTaxonomy.asp|accessdate=15 June 2015}}</ref> |
||
Revision as of 10:56, 27 September 2020
| Narnavirus | |
|---|---|
| |
| |
| Narnavirus has no structural proteins or capsid only RNA genome and RdRp | |
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 currently two species in this genus including the type species Saccharomyces 20S RNA narnavirus.[1][2] Narnaviruses have been shown to be required for sexual reproduction of Rhizopus microsporus.[3]
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.[2]
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.[2]
Taxonomy
The genus has two species:
- Narnaviridae
References
- ^ Cite error: The named reference
ICTVwas invoked but never defined (see the help page). - ^ 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.