Before revision: Allohexaploid species In 2011 and 2018, a novel allohexaploid (AABBCC) which is located at the "center" of the triangle of U was created by different means, for example by crossing B. rapa (AA) with B. carinata (BBCC), or B. nigra (BB) with B. napus (AACC), or B. oleracea (CC) with B. juncea (AABB), followed by chromosome duplication of the triploid (ABC) offspring to generate doubled haploid (AABBCC) offspring.
After revision: Allohexaploid species In 2011 and 2018, novel allohexaploids (AABBCC) which is located at the "center" of the triangle of U were created by different means, for example by crossing B. rapa (AA) with B. carinata (BBCC), or B. nigra (BB) with B. napus (AACC), or B. oleracea (CC) with B. juncea (AABB), followed by chromosome duplication of the triploid (ABC) offspring to generate doubled haploid (AABBCC) offspring.