IL8

Barley yellow dwarf is a plant disease caused by the barley yellow dwarf virus, and is the most widely distributed viral disease of cereals. It affects the economically important crop species barley, oats, wheat, maize, triticale and rice. Barley yellow dwarf virus (BYDV) is a positive sense single-stranded RNA virus; the viron is not enveloped in a lipid coating. The virus is transmitted by aphids, and the taxonomy of the virus is based on genome organisation, serotype differences and on the primary aphid vector of each isolate. The isolates and their major vectors (in parentheses) are: - Subgroup I MAV, a less severe strain carried by aphids (Grain aphid, Sitobion avenae), SGV (Schizaphis graminum), and PAV, a less severe strain carried by aphids (bird-cherry aphid, Rhopalosiphum padi, grain aphid, S. avenae, and others including Rose-grain aphid, Metopolophium dirhodum). - Subgroup II, called Cereal Yellow Dwarf Virus, however CYDV is now recognised as a separate species belonging to the Polerovirus genus of the Luteoviridae family RPV, the most severe strain carried by aphids (Bird-cherry aphid, Rhopalosiphum padi), RMV (Rhopalosiphum maidis)

BYDV-PAV; Barley yellow dwarf virus - PAV;