Potato virus Y (Potyviridae)
Résumé
Potato virus Y (PVY) is the type species member of the genus Potyvirus, family Potyviridae. Its natural host range mainly comprises plants in the family Solanaceae. PVY is highly variable, with recognized strains and variants. Also two main serotypes O-C and N can be distinguished. Full genome sequences of numerous isolates are known (540). PVY is transmitted by sixty-five species of aphids. Myzus persicae has the highest vector efficiency, though many other species such as cereal aphids can also be involved in epidemics. Control strategies are based on breeding for resistance and use of certified potato seeds.