[viruses]
   Realm Riboviria
     Family Potyviridae
       Genus Bymovirus
         1 Barley mild mosaic virus
         2 Barley yellow mosaic virusᵀ
         3 Oat mosaic virus
         4 Rice necrosis mosaic virus
         5 Wheat spindle streak mosaic virus
         6 Wheat yellow mosaic virus