Flexiviridae

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Flexiviridae
Virus classification
Group: Group IV ((+)ssRNA) Family: Flexiviridae
Genera
Allexivirus Carlavirus Capillovirus Foveavirus Mandarivirus Potexvirus Trichovirus Vitrivirus

The Flexiviridae are a family of viruses. The viruses are filamentous and named for being highly flexible. This family was described in the literature in 2004 after being approved as a new family by the International Committee on Taxonomy of Viruses based on molecular phylogenetic systematic analyses of proteins (RNA polymerase and viral coat). The viruses are a positive-sense ssRNA virus, placing them in Group IV of the Baltimore classification where they are unassigned as to order. Members of the family are readily transmitted mechanically and have other vectors of transmission. Species tend to be confined to a single host plant, many species preferring woody hosts, but a diversity of angiosperm hosts are known to the Flexiviridae. Viral aggregates are known to form in the cytoplasm of plant cells.^[1]

Genera include:

• Genus Allexivirus; type species: Shallot virus X
• Genus Capillovirus; type species: Apple stem grooving virus
• Genus Carlavirus; type species: Carnation latent virus
• Genus Foveavirus; type species: Apple stem pitting virus
• Genus Mandarivirus; type species: Indian citrus ringspot virus
• Genus Potexvirus; type species: Potato virus X
• Genus Trichovirus; type species: Apple chlorotic leaf spot virus
• Genus Vitivirus; type species: Grape vine virus A

Genera not assigned to a genus:

• Banana mild mosaic virus
• Cherry green ring mottle virus
• Cherry necrotic rusty mottle virus
• Citrus leaf blotch virus
• Sugarcane striate mosaic associated virus

[edit] References

1. ^ Adams, M. J.; J. F. Antoniw, M. Bar-Joseph, A. A. Brunt, T. Candresse, G. D. Foster, G. P. Martelli, R. G. Milne, and C. M. Fauquet (2004). "The new plant virus family Flexiviridae and assessment of molecular criteria for species demarcation". Archives of Virology 149: 1045-1060. The Netherlands: Springer Wien. doi:10.1007/s00705-004-0304-0.