Turnip mosaic virus

Turnip mosaic virus (TuMV)
Leaves showing interveinal chlorosis, puckering and distortion.
Virus classification
Group: Group IV ((+)ssRNA)
Family: Potyviridae
Genus: Potyvirus
Species: Turnip mosaic virus
Synonyms
  • TuMV

Turnip mosaic virus (TuMV) is a Potyvirus of the family Potyviridae that causes diseases in cruciferous plants, among others. The virus is usually spread by 40-50 species of aphids in a non-persistent manner. Infected plants, especially the natural hosts, show symptoms such as chlorotic local lesions, mosaic, mottling, puckering or rugosity. TuMV is a positive-sense single stranded RNA virus, consisting of a non-enveloped, helical capsid that is filamentous and flexuous, with an average length of 720 nm. The TuMV genome is linear and monopartite (single particle). The virus has a thermal inactivation point (TIP) of 62 °C, and longevity in vitro (LIV) of 3–4 days.

Evolution

This virus probably evolved from a virus of wild orchids in Germany spreading to wild and domestic brassicas.[1] Via Southern Europe it moved to Asia Minor within the last 700 years.

References

  1. ↑ Yasaka R, Fukagawa H, Ikematsu M, Soda H, Korkmaz S, Golnaraghi A, Katis N, Ho SYW, Gibbs AJ, Ohshima K (2017) The timescale of emergence and spread of Turnip Mosaic Potyvirus. Sci Rep 7(1):4240
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.