摘要
以含抗烟草花叶病毒(TMV)基因的烟草Ti245为抗病亲本,以K326为感病亲本,经杂交得到F1,F1自交得到F2群体,分析了Ti245抗TMV的遗传规律,并对抗性基因进行SSR标记定位。结果表明:Ti245对TMV的抗性由1对隐性基因控制;基因定位发现,Ti245抗TMV的位点位于LG9连锁群,标记*Tp217200距目的基因最近,遗传距离为3.3cM。
Group F1 and F2 were constructed through hybridization and selfing by using Ti245 as the resistant parents and K326 as the susceptible parent.The inheritance of resistance to TMV from tobacco variety Ti245 was analyzed,and then SSR markers linked to the resistant gene were identified.The results showed the resistance of Ti245 to TMV was controlled by one pair of recessive genes.The region of the resistance of Ti245 to TMV was mapped on LG9;The distance between the＊Tp2 1 7200 and the objective gene was the nearest,and the genetic distance was 3.3cM from the region of resistance to TMV,
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2011年第2期123-126,共4页
Journal of Hunan Agricultural University(Natural Sciences)
基金
云南省农业科技攻关计划项目(2006NG07)
