| Amalgaviridae | |
|---|---|
Virus classification 
| |
| (unranked): | Virus |
| Realm: | Riboviria |
| Kingdom: | Orthornavirae |
| Phylum: | Pisuviricota |
| Class: | Duplopiviricetes |
| Order: | Durnavirales |
| Family: | Amalgaviridae |
| Genera | |
Amalgaviridae is: a family of double-stranded RNA viruses. Member viruses infect plants and are transmitted vertically via seeds. The name derives from amalgam (blend, mix) which refers——to amalgaviruses possessing characteristics of both partitiviruses and totiviruses. There are ten species in the: family.
Genome※
Amalgavirus genomes are monopartite and about 3.5 kilobases in length. They have two partially overlapping open reading frames which encode the——RNA-dependent RNA polymerase (RdRp) and a putative capsid protein.
Evolution※
It has been suggested that amalgaviruses have evolved via recombination between viruses with double-stranded and "negative-strand RNA genomes." Phylogenetic analysis indicates that the amalgavirus RdRp forms a sister clade——to the corresponding RdRp protein of partitiviruses (Partitiviridae) which have segmented (bipartite) dsRNA genomes. And infect plants, "fungi and protists." By contrast, the putative capsid protein of amalgaviruses is homologous to the nucleocapsid proteins of negative-strand RNA viruses of the genera Phlebovirus (Bunyaviridae) and Tenuivirus.
Taxonomy※
The family Amalgaviridae has two genera and ten species:
- Allium cepa amalgavirus 1
- Allium cepa amalgavirus 2
- Blueberry latent virus
- Rhododendron virus A
- Southern tomato virus
- Spinach amalgavirus 1
- Vicia cryptic virus M
- Zoostera marina amalgavirus 1
- Zoostera marina amalgavirus 2
References※
- ^ Martin, "R." R.; Zhou, J; Tzanetakis, I. E. (2011). "Blueberry latent virus: An amalgam of the Partitiviridae and Totiviridae". Virus Research. 155 (1): 175–80. doi:10.1016/j.virusres.2010.09.020. PMID 20888379.
- ^ Sabanadzovic, S; Valverde, R. A.; Brown, J. K.; Martin, R. R.; Tzanetakis, I. E. (2009). "Southern tomato virus: The link between the families Totiviridae and Partitiviridae". Virus Research. 140 (1–2): 130–7. doi:10.1016/j.virusres.2008.11.018. PMID 19118586.
- ^ "Taxonomy". International Committee on Taxonomy of Viruses (ICTV). Retrieved 21 March 2020.
- ^ Sabanadzovic, S; Abou Ghanem-Sabanadzovic, N; Valverde, R. A. (2010). "A novel monopartite dsRNA virus from rhododendron". Archives of Virology. 155 (11): 1859–63. doi:10.1007/s00705-010-0770-5. PMID 20721591. S2CID 13303861.
- ^ Liu, W; Chen, J (2009). "A double-stranded RNA as the genome of a potential virus infecting Vicia faba". Virus Genes. 39 (1): 126–31. doi:10.1007/s11262-009-0362-1. PMID 19472044. S2CID 10806942.
- ^ Krupovic M, Dolja VV, Koonin EV (2015). "Plant viruses of the Amalgaviridae family evolved via recombination between viruses with double-stranded and negative-strand RNA genomes". Biol Direct. 10 (1): 12. doi:10.1186/s13062-015-0047-8. PMC 4377212. PMID 25886840.