As one of edible oil crops and raw materials for biodiesel in the world, B.napus is taken account of importance increasingly. Although the planting area is leading all the time, due to its limited historical domestication and narrow genetic foundation, the utilization of heterosis is stagnant. We replaced the An and Cn genome in traditional B. napus by introgressing Ar genome from B. rapa (ArAr) and Cc genome from B. carinata (BcBcCcCc) partially and led to develop the first new type B.napus whose A...