High Quality Content by WIKIPEDIA articles! Blue tomatoes are tomatoes that have been selectively bred to produce high levels of anthocyanin, a pigment responsible for the blue and purple color of several fruits. Anthocyanin has also been identified to possess antioxidant properties.Researchers at Oregon State University have produced the blue tomatoes using conventional breeding techniques, cross-pollinating domestic tomatoes with wild varieties that exhibit the "Anthocyanin fruit" (Aft) gene. High-anthocyanin tomatoes have also been developed using gene splicing techniques, incorporating genes from snapdragons to increase the anthocyanin levels.

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