Erik Stokstad in Science:
By giving a Chinese rice variety a second copy of one of its own genes, researchers have boosted its yield by up to 40%. The change helps the plant absorb more fertilizer, boosts photosynthesis, and accelerates flowering, all of which could contribute to larger harvests, the group reports today in Science.
The yield gain from a single gene coordinating these multiple effects is “really impressive,” says Matthew Paul, a plant geneticist at Rothamsted Research who was not involved in the work. “I don’t think I’ve ever seen anything quite like that before.” The approach could be tried in other crops, too, he adds; the new study reports preliminary findings in wheat.