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柴达木盆地特殊的气候条件创造了世界春小麦高产记录,但该地区关于小麦产量相关性状的QTL定位分析未有报道.本研究测定了1 14个W7984/Opata重组自交系(RIL)在柴达木盆地生态环境下6个年份7个产量相关性状(株高,穗长,穗粒数,小穗数,穗密度,千粒重和产量)的表现型,利用QTL作图软件IciMapping 4.1进行了QTL定位.结果表明,在2011-2016年里共鉴定49个与产量相关性状的QTL,其中5个为株高QTL,6个为穗长QTL,2个为小穗数QTL,8个为穗粒数QTL,7个为穗密度QTL,16个为千粒重QTL,5个为产量QTL,分布在染色体1A、1B、1D、2A、2B、2D、3A、3D、4A、4B、5A、5B、5D、6A、6B、6D、7A、7B和7D上.单个QTL可解释表型变异的5.82％～31.53％,特别是位于染色体6A上的千粒重QTL可在多年份(2011年/2013年/2014年)中检测到.这些QTL位点的鉴定为柴达木地区小麦产量相关性状QTL精细定位和分子标记辅助选择育种提供理论基础.“,”The special climatic environment produced the highest yield record of spring wheat in Qaidam basin.So far,QTL mapping for yield-related traits has not been reported.In this study,114 recombinant inbred lines (RILs) derived from the cross between W7984 and Opata were evaluated for plant height (PHT),spike length (SL),grain number per spike (GNS),spikelets (SPI),spike compactness (SC),thousand-grain weight (TGW),yield (YLD) in six years (from 2011 to 2016) in Qaidam basin,Xining,China.With the methods of inclusive composite interval mapping (ICIM) in the QTL mapping software IciMapping 4.1,49 putative QTLs located on chromosomes 1A,1 B,1D,2A,2B,2D,3A,3D,4A,4B,5A,5B,5D,6A,6B,6D,7A,7B,and 7D were detected over six years,5 QTLs for plant height (PHT),6 QTLs for spike length (SL),2 QTLs for spikelets (SPI),8 QTLs for grain number per spike (GNS),7 QTLs for spike compactness (SC),16 QTLs for thousand-grain weight (TGW),5 QTLs for yield (YLD).Single QTL could explain 5.82％～31.53％ of the phenotypic variations.Especially,one QTL for TGW on chromosome 6A could be identified in the multiple years (2011,2013,and 2014).These results might provide fundamental basis for fine-mapping of yield-related traits and molecular marker assisted selection breeding in Qaidam basin.