title: Umbravirus
text: # Umbravirus
  
  Umbravirus is a genus of plant viruses assigned to the family Tombusviridae. The genus has 11 species.
  
  Transmission may be by aphids or mechanical inoculation. The genome is a linear, positive-sense, single-stranded RNA, 4200–6900 nucleotides in length.
  
  ## Taxonomy
  
  The genus contains the following species:
  
  * Carrot mottle mimic virus
  * Carrot mottle virus
  * Ethiopian tobacco bushy top virus
  * Groundnut rosette virus
  * Ixeridium yellow mottle virus 2
  * Lettuce speckles mottle virus
  * Opium poppy mosaic virus
  * Patrinia mild mottle virus
  * Pea enation mosaic virus 2
  * Tobacco bushy top virus
  * Tobacco mottle virus
  