Umbravirus
The genus Umbravirus includes plant viruses assigned to the family Tombusviridae. The genus has nine recognized species: Carrot mottle mimic virus, Carrot mottle virus, the type species, Ethiopian tobacco bushy top virus, Groundnut rosette virus, Lettuce speckles mottle virus, Opium poppy mosaic virus, Pea enation mosaic virus 2, Tobacco bushy top virus, and Tobacco mottle virus.
| Umbravirus | |
|---|---|
Virus classification  | |
| (unranked): | Virus |
| Realm: | Riboviria |
| Kingdom: | Orthornavirae |
| Phylum: | Kitrinoviricota |
| Class: | Tolucaviricetes |
| Order: | Tolivirales |
| Family: | Tombusviridae |
| Subfamily: | Calvusvirinae |
| Genus: | Umbravirus |
| Type species | |
| Carrot mottle virus | |
Umbraviruses do not encode their own coat protein, but use the coat proteins of 'assistor viruses' from the family Luteoviridae to produce virions, allowing them to be transmitted.[1] Transmission may be by aphids or mechanical inoculation. The genome is a linear, positive-sense, single-stranded RNA, 4200–6900 nucleotides in length.[2]
References
- Taliansky, M. E.; Robinson, D. (2003). "Molecular biology of umbraviruses: phantom warriors". Journal of General Virology. 84 (Pt 8): 1951–60. doi:10.1099/vir.0.19219-0. PMID 12867625.
- Index of Viruses—Umbravirus (2006). In: ICTVdB—The Universal Virus Database, version 4. Büchan-Osmond, C (Ed), Columbia University, New York, USA.
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