京724玉米自交系S型细胞质雄性不育系分子标记辅助选育研究  

Study on Breeding of New S-type Cytoplasmic Male Sterile Material from Maize Inbred Line Jing724 with Molecular Marker Assisted Selection

作　　者：宋伟[1] 苏爱国[1] 邢锦丰[1] 吴金凤[1] 赵久然[1] 

机构地区：[1]北京市农林科学院玉米研究中心/玉米DNA指纹及分子育种北京市重点实验室,北京100097

出　　处：《玉米科学》2016年第1期33-36,42,共5页Journal of Maize Sciences

基　　金：国家科技支撑项目(2014BAD01B09);北京市农林科学院科技创新能力建设专项(KJCX20140202;QNJJ201302);北京市科技计划课题(Z141100002314016);北京市博士后基金(2014ZZ-68)

摘　　要：以自育的S型细胞质雄性不育系MD32为供体,京科968的母本京724为受体,利用回交转育结合分子标记辅助背景选择,仅回交3代即获得京724遗传背景的S型细胞质雄性不育系。经花粉I2-KI染色鉴定,京724不育系花粉败育完全。MD32 was used as donor, male sterile trait was transferred to the inbred line Jing724 using back- cross breeding with molecular marker assisted background selection, which was female parent of Jingke968. Back- cross only three generations, we obtained cms-Jing724 that genetic background close to Jing724. The male sterility characteristics of cms-Jing724 were stable, no anthers exposed On tassel and pollen aborted completely through Iz- KI staining.

关 键 词：玉米 分子标记辅助选择 细胞质雄性不育 

分 类 号：S513.035.1[农业科学—作物学]