向大白菜A1,A2同步转育抗根肿病基因和显性核不育基因的研究

根据大白菜复等位基因遗传假说及抗根肿病基因由一个显性核基因控制的结论,以现有的抗根肿病雄性不育系作为不育源,以大白菜自交系A1,A2为轮回亲本,经过抗病筛选、连续回交、测交、自交等转育方法,将抗根肿病基因和核不育基因同时向A1,A2中转育,分别得到抗根肿病的新甲型两用系、临时保持系。

Research of Synchronous Transfermation Clubroot Disease Resistance Gene and Sterile Genes to A1,A2 Chinese Cabbage

According to the genetic hypothesis of multi-allele and the conclusion that the clubroot disease was controlled by a dominant nuclear gene in Chinese cabbage,the resistant gene against clubroot disease and the sterile genes were transfered to A1 and A2 Chinese cabbage using the existing anti-clubroot male sterile line as the infertility source and the Chinese cabbage inbreds A1 and A2 as reincarnational parents,by means of resistance screening,consecutive backcross,test cross,self-cross,etc.from which the AB lines(typeⅠ)and temporary maintainer line were achieved.