小麦光温敏雄性不育系BS366抽穗期的QTL分析  

QTL Analysis of Heading Date for Photoperiod-thermo Sensitive Male Sterile Line BS366 in Wheat

作　　者：徐小芹[1] 张立平[1,2] 赵昌平[1,2] 苑少华[2] 

机构地区：[1]首都师范大学生命科学学院,北京100048 [2]北京市农林科学院杂交小麦工程技术研究中心,北京100097

出　　处：《安徽农业科学》2010年第32期18113-18115,18118,共4页Journal of Anhui Agricultural Sciences

基　　金：北京市自然科学基金项目(5091001);国家高技术研究与发展计划(863)项目(2009AA101102);农业部948项目(2009-Z4);北京市农业育种基础研究创新平台项目(D08070500690801)

摘　　要：[目的]对小麦光温敏不育系BS366的抽穗期进行QTL分析,为BS366的品种改良和标记辅助育种奠定基础。[方法]以小麦光温敏雄性不育系BS366和常规品种Baiyu149杂交得到的234个DH（doubled haploid）株系为材料,于2007~2008年分别种植于北京海淀和安徽阜南试验田,采用复合区间作图法,对抽穗期进行QTL分析。[结果]共检测到15个抽穗期QTL,在两地都检测到的QTL有8个,分别位于染色体1B、2A、2D、3B（2个）、6B（2个）和7B,单个QTL的贡献率为2.42%~10.98%。[结论]在1B染色体上新发现了1个抽穗期QTL,丰富了QTL资源。在两地都检测到的8个QTL,可用于小麦光温敏雄性不育系BS366抽穗期的改良和标记辅助育种。[Objective]The study aimed to map QTLs（Quantitative trait loci） of heading date for phtopeiod-thermo sensitive male sterile line BS366 in wheat.[Method] A population of 234 doubled haploid derived from the cross between BS366 and Baiyu149 was planted in Beijing and Funan in 2007,respectively.Using composite interval mapping（CIM） method to analyze the QTLs for heading date.[Result]It detected 15 QTLs of heading date.There were 8 QTLs alike in both Beijing and Funan,which were located on 1B,2A,2D,3B（2）,6B（2） and 7B.A single QTL accoutted for 2.42%-10.98% of pheotypic varience.[Conclusion] 8 QTLs which were detected under two environments could be applied for marker-assisted breeding and improvement of BS366.The QTL on chromosome 1B was new for heading date,which enrichs the QTL resource.

关 键 词：小麦 抽穗期 QTL分析 

分 类 号：S512.1[农业科学—作物学]