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从排菜B.juncea×甘蓝B.oleracea的种间杂种后代中获得形似甘蓝型油菜的细胞核雄性不育性材料(S445),对其不育性的遗传特点进行了研究:育性是由一对隐性基因(ff)控制的,不育株只能用可育株与之作兄妹交保持,保持的后代不育株与可育株分离比率为1:1。可育株自交,后代不育株与可育株的分离比为1:3。测恢试验的结果表明,恢复系较易找到,并有杂种优势。
Genomic male sterility (S445), a form of Brassica napus, was obtained from interspecific hybrid offspring of B.juncea × B. oleracea and the genetic characteristics of its sterility were studied: fertility was determined by For the recessive gene (ff) control, sterile plants can only be crossed with fertile plants and siblings to maintain the offspring of sterile offspring and fertile plants segregation ratio of 1: 1. Self-fertile plants, offspring of sterile and fertile plants segregation ratio of 1: 3. The results of the test of the recovery show that the restorer line is easier to find and has the heterosis.