小麦抗叶锈病中间材料的Lr24、Lr38分子标记辅助选择  

Marker-Assisted Selection of Wheat Leaf Rust Resistant Genes Lr24 and Lr38in the Pyramiding Materials of Wheat

作　　者：王志[1] 安哲[1] 范学锋[1] 张徐明 张立荣[1] 张英姿[1] 杨文香[1] 刘大群[1] 

机构地区：[1]河北农业大学植物病理学系/河北省农作物病虫害生物防治工程技术研究中心,河北保定071001 [2]河北省沙河市农业局,河北沙河054100

出　　处：《麦类作物学报》2017年第1期16-21,共6页Journal of Triticeae Crops

基　　金：国家重点基础研究发展计划项目(2013CB127700);河北省现代农业产业体系小麦产业创新团队建设项目(HBCT2013010204);河北省高等学校科学技术研究项目(Z2014065)

摘　　要：为加速小麦抗叶锈优质品种的培育,利用Lr24、Lr38的分子标记对优质品种豫麦34、中优9507和高抗叶锈品系1R17的杂交F3:4代的优质材料进行了目的基因的鉴定。结果从150份杂交后代F3:4中筛选出了70份聚合Lr24和Lr38的高抗优质材料,其余80份材料表型为抗叶锈病,但不含Lr24和Lr38或仅含二者之一。本研究避免了小麦抗叶锈病育种的盲目性,提高了抗叶锈基因选择的准确度。In order to screen the leaf rust resistance and high quality pyramiding wheat progeny,the molecular markers of leaf rust resistance genes Lr24 and Lr38 were used to identify the wheat leaf rust resistance gene Lr24 and Lr38 in 150 F3：4 offsprings derived from the high-yield and high-quality varieties. The results showed that 70 of 150 lines co-contained both Lr24 and Lr38.Eighty lines which showed resistance contained no Lr24 or Lr38. This study reduced the cost of wheat breeding improvement and improved the accuracy of gene selection for leaf rust resistance.

关 键 词：小麦叶锈病 Lr24和Lr38 基因聚合 分子标记辅助育种 

分 类 号：S512.1[农业科学—作物学] S332