卫星搭载玉米雄性不育突变系的遗传稳定性研究  

A Study of Genetic Stability of Male Sterile Mutant of Maize Obtained from Space Flighted Seeds.

作　　者：李金国[1] 潘光堂[2] 曹墨菊[2] 荣廷昭[2] 蒋兴村[1] 

机构地区：[1]中国科学院遗传与发育生物学研究所,北京100101 [2]四川农业大学玉米研究所,四川雅安625014

出　　处：《航天医学与医学工程》2002年第1期51-54,共4页Space Medicine & Medical Engineering

基　　金：8 6 3 2基金支持项目 ( 86 3 2 7 2 5 1)

摘　　要：目的通过卫星搭载玉米种子选育雄性不育突变体 ,定向培育成新不育系供生产应用。方法利用卫星搭载飞行 1 5d的川丹 9号玉米种子返地种植后 ,选育出不育突变体 ,并通过直接杂交获得了不育系。结果不育材料花粉败育彻底 ,不育性状表现稳定 ,呈现出由隐性单基因控制的核不育的遗传特点。结论雄性不育突变体的出现与卫星搭载有关 。Objective To select a male sterile mutant of maize through space flight for production application. Method Air dried seeds of maize (Chuan Dan No.9) were carried to space for 15 d. After returned to the earth, a male sterile mutant was selected and a sterile line was obtained through direction breeding. Result It was found that the sterile material was thoroughly abortive. The sterile was trail stable and expressed a genetic feature of single recessive gene controlled nucleus sterility. Conclusion The appearance of male sterile mutant was due to gene mutation caused by space conditions.

关 键 词：卫星搭载 玉米 雄性不育 遗传 变异 基因突变 

分 类 号：Q693[生物学—生物物理学]