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

adn alleles arn mensajero arn messager carotenoide carotenoides carotenoids complementary dna dna fruits frutas gene gene expression genes licopeno lycopene lycopersicon lycopersicon esculentum maduramiento messenger rna mutant mutantes mutants mutation ripening