This volume summarizes recent technological advances in the design and engineering of Solanaceae and Cucurbitaceae crops. It begins with contributions on the tomato and melon genome sequence, databases for Solanaceae and Cucurbitaceae research, DNA markers in the breeding of the two families, and mutant resources and TILLING platforms in tomato research. Subsequent chapters address the use of molecular techniques for the modification of important breeding traits, such as tomato fruit set, growth, ripening, and sugar accumulation, as well as disease and insect resistance in melons. The volume closes with chapters on genome editing using artificial nucleases as a future breeding tool, and on the development of an in silico crop design system. It offers a valuable resource for plant breeders, molecular biologists, and agronomists.