Domestication of rice

Rice so nice it was domesticated thrice  “Rice is unique among wild plants for having been domesticated independently on three continents: Asia, Africa, and now South America, researchers have discovered. The New World variety, tamed about 4000 years ago, apparently was abandoned after Europeans arrived. But its genetic legacy could potentially help improve Oryza sativa, the Asian rice species that is now a dietary staple for half the world’s population.”