There’s a revolution coming to your supermarket, and it’s going to start in the tomato aisle. After more than a decade of study, researchers at the University of Florida have identified the chemical compounds responsible for giving a great tomato its distinctive sweet, earthy, slightly grassy taste. They have also determined the genes that code for these chemicals and where they can be found in the tomato genome. Their results, published Thursday in Science, could help breeders create tomatoes that are hardy enough to survive the often long and arduous journey from field to store without sacrificing flavor. Experts say...