Parental Genome Separation and Elimination of Cells and Chromosomes Revealed by AFLP and GISH analyses in a Brassica carinata × Orychophragmus violaceus Cross

摘要

• Background and Aims The phenomenon of parental genome separation during the mitotic divisions of hybrid cells was proposed to occur under genetic control in intergeneric hybrids between cultivated Brassica species and Orychophragmus violaceus (2n = 24). To elucidate further the cytological and molecular mechanisms behind parental genome separation, Brassica carinata (2n = 34) × O. violaceus hybrids were resynthesized and their chromosome/genomic complements analysed.