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作物学报 ›› 2015, Vol. 41 ›› Issue (03): 349-358.doi: 10.3724/SP.J.1006.2015.00349
• 作物遗传育种·种质资源·分子遗传学 • 下一篇
吴秋红1,**，陈娇娇1,**，陈永兴1，周升辉1，傅琳1，张德云1，肖尧1，王国鑫1，王振忠1，王立新2，韩俊3，袁成国4，尤明山1，刘志勇1,*
WU Qiu-Hong1,**,CHEN Jiao-Jiao1,**,CHEN Yong-Xing1,ZHOU Sheng-Hui1,FU Lin1,ZHANG De-Yun1,XIAO Yao1，WANG Guo-Xin1,WANG Zhen-Zhong1, WANG Li-Xin2,HAN Jun3,YUAN Cheng-Guo4,YOU Ming-Shan1,LIU Zhi-Yong1,*
摘要：
小麦穗部性状与单株产量密切相关。本研究以小麦骨干亲本燕大1817与优良品系北农6号衍生的269个重组自交系为材料，通过在北京和河北石家庄的2年田间试验数据，利用本实验室已构建的高密度SNP和SSR遗传连锁图谱进行穗长、穗粒数和穗粒重QTL定位。采用完备复合区间作图法共检测到29个穗部性状加性效应QTL，其中10个穗长QTL分布于1B、2D、3A、3B、4A、5A、5B、6A和7D染色体上，解释的表型变异率为2.96%~9.63%，QSl.cau-4A.2在所有5个环境中均能被检测到，解释的表型变异为5.89%~9.62%，另有7个QTL能在2个或2个以上环境中被检测到；8个穗粒数相关QTL分布于1A、3A、3D、4A和5B染色体上，解释的表型变异为4.06%~11.17%，为单个环境QTL。11个与穗粒重相关QTL分布于1A、1B、2A、2D、3A、4D、5A、5B和6B染色体上，解释的表型变异为2.79%~16.12%，其中QGws.cau-1B、QGws.cau-3A和QGws.cau-6B.2在2个或者2个以上环境中能被检测到。另外，鉴定出6个分布于1A、2D、3A、4A和5B染色体上的QTL富集区段。
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