玉米不育系回交转育群体遗传连锁图谱的比较分析  

Comparative Analysis of Genetic Linkage Map of Maize Sterile Line Backcross Transformation Populations

作　　者：孙丽芳[1] 王振[1] 王霞[1] 邓杰[1] 胡凯凤 王婧择 杨克军[1] 

机构地区：[1]黑龙江八一农垦大学农学院,大庆163319

出　　处：《黑龙江八一农垦大学学报》2016年第3期1-5,98,共6页journal of heilongjiang bayi agricultural university

基　　金：农业部公益性项目(201303007);黑龙江省青年科学基金(QC2015029);黑龙江八一农垦大学作物学科学技术骨干科研启动项目(ZWXQDJ-6)

摘　　要：以玉米细胞质雄性不育系cms-合344为试验材料,辐63018为轮回亲本构建BC1F1群体和BC2F1群体,并分别构建SSR标记遗传连锁图谱。结果表明,331对SSR标记中有60对标记在两亲本间呈现稳定多态性;BC1F1群体覆盖玉米基因组总长度为1 637.38 cM,标记间平均图距为27.29 cM,BC2F1群体覆盖玉米基因组总长度为1 183.64 cM,标记间平均图距为19.73 cM;两个图谱的每条染色体标记数目和种类一致,然而各标记位置发生明显变化。研究为玉米不育系回交转育分子辅助选择奠定基础。Maize sterile line CMS-He as materials,344BC1F1 and BC2F1 populations were built by using Fu63018 as recurrent parent and their SSR markers genetic linkage maps were obtained. The results showed that a total of 60 pair markers displayed steady polymorphism between two parents;the BC1F1 group covered 1 637.38 cM length of maize genome,and the BC2F1 group covered 1 183.64 cM,the average marker interval was 27.29 cM and 19.73 cM,respectively;the number and type of markers in each chromosome were consistent with two maps,but the position of each marker was changed. The analysis laid the theoretical basis for molecular assisted selection of maize sterile line backcross transportation.

关 键 词：玉米 回交转育 遗传连锁图谱 

分 类 号：S513[农业科学—作物学]