Flavor Is the Price of Tomatoes’ Scarlet Hue, Geneticists Say

A gene mutation was deliberately bred into almost all tomatoes because it made them uniformly red when ripe.  Turns out, that gene plays an important role in producing the sugar and aromas that give tomatoes a good tomato-y flavor.  Heirloom tomatoes and many wild species are often more flavorful because they do not have the uniform ripening mutation.