Amalgaviridae
| 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.[1] The name derives from amalgam (blend, mix) which refers to amalgaviruses possessing characteristics of both partitiviruses and totiviruses.[1][2] The family contains three genera.[3]
Genome
[edit]Amalgavirus genomes are monopartite and about 3.5 kilobases in length.[2][4] They have two partially overlapping open reading frames which encode the RNA-dependent RNA polymerase (RdRp) and a putative capsid protein.[2][5]
Evolution
[edit]It has been suggested that amalgaviruses have evolved via recombination between viruses with double-stranded and negative-strand RNA genomes.[6] 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.[1][2][4][6] By contrast, the putative capsid protein of amalgaviruses is homologous to the nucleocapsid proteins of negative-strand RNA viruses of the genera Phlebovirus and Tenuivirus.[6]
Taxonomy
[edit]The family contains the following genera:[3]
References
[edit]
- 1 2 3 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.
- 1 2 3 4 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.
- 1 2 "Virus Taxonomy: 2024 Release". International Committee on Taxonomy of Viruses. Retrieved 16 March 2025.
- 1 2 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.
- 1 2 3 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.