INTRODUCTIONDiabetes mellitus is the most common disease and its death rate ranks the 8th in the world. Up to now, its i......

在甘蓝型油菜×埃塞俄比亚芥中，杂种胚乳不甚发育并提前形成细胞，杂种胚发育缓慢，消耗早育的胚乳组织后便停滞在心形期或鱼雷形期......