Golden Rice (Oryza sativa) is a rice variety produced by genetic engineering in which beta-carotene, the precursor molecule of vitamin A is synthesized. The genes incorporated for the production of beta-carotene are phytoene synthase (Psy) isolated from daffodil and phytoene desaturase (Crt1) isolated from the bacterium Erwiniauredovora. The third gene incorporated is lycopene beta-cyclase (Lcy) from daffodil.
