Studies on resistance to tomato yellow mosaic geminivirus
During the past several years, in Venezuela, tomato yellow mosaic geminivirus (ToYMV) has caused millions of dollars in losses in commercial tomato (Lycopersicon esculentum). By the time of flowering, 90-100 % of tomato plants can become infected by ToYMV. Symptoms of the disease are a golden yellow mosaic and stunting, and no fruit is produced if plants are infected early. ToYMV is transmitted by Bemisia tabaci (EPPO A2 quarantine pest). Studies have been carried out on resistance to this disease, and several accession of Lycopersicon chilense, L. hirsutum and L peruvianum var. glandulosum have shown tolerance or high degree of resistance to a Venezuelan isolate to ToYMV.
Sources
Piven, N.M.; de Uzcátegui, R.C.; Infante, H.D. (1995) Resistance to tomato yellow mosaic virus in species of Lycopersicon.
Plant Disease, 79(6), 590-594.