Evaluation of resistance to potato virus Y (PVY) in wild species and potato breeding clones of the genus Solanum

aphis aulacorthum aulacorthum solani clone clones fusion de protoplastes hybride hybrids inoculation interspecific hybridization mortalidad mortalite mortality myzus myzus nicotianae potato y potyvirus potyvirus y de la patata potyvirus y pomme de terre protoplast fusion protoplaste protoplastos protoplasts solanum vecteur de maladie vectores vectors virus viruses