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Tobacco mosaic virus particles (click on image to enlarge it)
Author: T. Moravec
Source: Wikimedia Commons


The members of this family of plant viruses have rod-shaped particle (in Latin virga = rod) and are related as evidenced by their RNA genome. The RNA is single stranded, positive sensed and does not contain a poly A tail. The particles are 20-25 nm in diameter and have a central "canal". The coat protein is 19-24 kDa large.

Various members of the family cause economically important diseases of crops like Soil-borne wheat mosaic virus, Potato mop-top virus, Pepper mild mottle virus or Tobacco mosaic virus.

The following genera are currently entered under this family: