The exogenous lcy gene has a transit peptide sequence attached so it is targeted to the plastid,
这个是胡箩卜素转化维生素A的关键基因，为什么二代不要了？
everglade 发表评论于 2015-03-30 12:51:34
就知道断章取义。看看后面一句。
Golden rice differs from its parental strain by the addition of three beta-carotene biosynthesis genes. The scientific details of the rice were first published in Science in 2000[1]
再看看论文引用1，那是第一代的，2000年。
everglade 发表评论于 2015-03-30 12:48:10
第二代黄金大米里只有 psy he ctrI. 维基不是写的明白，第一代后， Icy 就不用了吗。请你读读 ******nature***/nbt/journal/v23/n4/full/nbt1082.html。 这是维基引用的论文4
喜大普奔 发表评论于 2015-03-30 12:45:26
@everglade ， 你自己好好去读读wiki吧。这是科学，不是你随口可以说的。
Golden rice differs from its parental strain by the addition of three beta-carotene biosynthesis genes.
Golden rice was created by transforming rice with only two beta-carotene biosynthesis genes:
psy (phytoene synthase) from daffodil (Narcissus pseudonarcissus)
crtI (carotene desaturase) from the soil bacterium Erwinia uredovora
(The insertion of a lcy (lycopene cyclase) gene was thought to be needed, but further research showed it is already being produced in wild-type rice endosperm.)
