Identification of natural sources of resistance to bipartite begomovirus TYLCKaV in Solanum melongena

Yellow leaf curl disease caused by begomoviruses has emerged as a major limitation to the production of eggplant (Solanum melongena) in several regions world. Tomato yellow Kanchanaburi virus (TYLCKaV) is bipartite begomovirus isolated from diseased areas Indochinese peninsula, South China, and Maritime Southeast Asia. In this study, five species Indonesia, including TYLCKaV, were inoculated using infectious clones. Among begomoviruses, TYLCKaV alone induced typical yellowing curling symptoms eggplant. Inoculation panel crop (eggplant, tomato, pepper, tobacco, cucumber, melon, squash) commonly grown Indonesia clarified that infects causes mainly tomato. Agroinfiltration 736 accessions enabled selection 33 resistant candidates. Further evaluation graft-inoculation candidates 10 classifiable moderately 23 highly resistant. accessions, 22 restricted viral DNA accumulation significantly lower amount than susceptible control. These represent valuable genetic resources for breeding resistance