1BL/1RS易位染色体在小麦育种中的应用效果分析  

Study on Effects of 1BL/1RS on Wheat Breeding

作　　者：董冬[1] 韦胜利[2] 徐云峰[2] 李洪杰[1] 周阳[1] 

机构地区：[1]中国农业科学院作物科学研究所/农作物基因资源与基因改良国家重大科学工程,北京100081 [2]黄泛区农场,河南西华466632

出　　处：《作物杂志》2011年第4期109-112,共4页Crops

基　　金：中央级公益性科研院所基本科研业务费专项(20105)

摘　　要：以来自周麦18/郑麦9023//周麦18回交组合的156个BC1F5品系(其中89个为1BL/1RS易位系,67个为非1BL/1RS易位系)为材料,研究1BL/1RS易位染色体在小麦育种中的应用效果。结果表明,在周麦18和郑麦9023遗传背景下,1BL/1RS对产量及其相关性状无显著正向作用,与SDS沉淀值呈显著负相关,与白粉病抗性无显著相关。说明来自"洛类"系统的1BL/1RS易位染色体在特定的遗传背景和生态条件下没有明显值得继续利用的价值。The objective of this study was to examine effects of 1BL/1RS on wheat breeding by evaluating 89 1BL/1RS translocation lines and 67 non-1BL/1RS translocation lines of BC1F5 from the same backcross Zhoumai 18/Zhengmai 9023/ /Zhoumai 18.The results showed that there were no significant positive effects of 1BL/1RS on yield and yield related traits.The significantly negative relationship between 1BL/1RS and SDS sedimentation volume was detected.The gene on 1RS previously resistant to powdery mildew became ineffective.It indicated that the 1BL/1RS translocation chromosome had lost its value in wheat breeding under certain genetic background and ecological conditions.

关 键 词：小麦育种 1BL/1RS 产量 品质 

分 类 号：S512.1[农业科学—作物学]