A method of generating a cultivated tomato plant which produces fruit having high soluble solids, the method comprising:(a) providing a population of plants derived from interspecific crosses of a Lycopersicon spp. genotype with Lycopersicon esculentum genotype(b) selecting individuals of said population that exhibit higher ADP-glucose pyrophosphorylase (ADPGPPase) activity than individuals of said Lycopersicon esculentum genotype and(c) backcrossing individuals selected in step (b) with a tomato plant of said Lycopersicon esculentum genotype, thereby generating the cultivated tomato plant which produces fruit having high soluble solids.
