Give a detailed account on Golden rice.

Explanation

Golden rice is a very of Oryza sativa (rice) produced through genetic engineering of biosynthesized beta-carotene, a precursor of Vitamin-A in the edible parts of rice developed by Ingo Potrykus and his group. The aim is to produce a fortified food to be grown and consumed in areas with a shortage of dietary Vitamin-A, which kills so many children under five year age. Golden rice differs from its parental strain by the addition of three beta-carotene biosynthesis genes namely .psy. (phytoene synthase) from daffodil plant Narcissus pseudonarcissus and .crt-I. gene from the soil bacterium Erwinia auredorora and .lye.(lycopene cyclase) gene from wild-type rice endosperm.
The endosperm of normal rice, does not contain beta-carotene. Golden-rice has been done using Recombinant DNA technology. Golden rice can control childhood blindness-Xerophthalmia.