Regulation of carotenoid biosynthesis during tomato fruit development: expression of the gene for lycopene epsilon-cyclase is down-regulated during ripening and is elevated in the mutant Delta.

Abstract excerpt

The red colour of tomato (Lycopersicon esculentum) fruits is provided by the carotenoid pigment lycopene whose concentration increases dramatically during the ripening process. A single dominant gene, Del, in the tomato mutant Delta changes the fruit colour to orange as a result of accumulation of delta-carotene at the expense of lycopene. The cDNA for lycopene epsilon-cyclase (CrtL-e), which converts lycopene to...

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