小麦面粉色泽(白度)与DArT标记的关联分析  

Genome-wide Association Analysis of Flour Color(Whiteness) Using DArT Markers in Common Wheat

作　　者：于海霞[1] 肖静[2] 田纪春[1] 

机构地区：[1]山东农业大学/作物生物学国家重点实验室/山东省作物生物学重点实验室,山东泰安271018 [2]山东省泰安市岱岳区农业局,山东泰安271018

出　　处：《作物学报》2014年第12期2198-2202,共5页Acta Agronomica Sinica

基　　金：国家自然科学基金项目(30971764);国家转基因生物新品种培育重大专项(2008ZX08002-003)资助

摘　　要：面粉色泽(白度)是评价小麦加工品质的重要指标之一。在4个环境中检测了109份矮孟牛姊妹系及其衍生系的面粉色泽(白度)参数,并利用混合线性模型分析其与覆盖小麦基因组的971个DArT(Diversity Array Technology)标记的关联性。结果显示,17个DArT标记与面粉色泽显著关联,4个标记与白度显著关联(P≤0.001)。标记wPt-1196和wPt-669693在多个环境中与色泽a*和b*关联,且效应值较大。该研究结果为小麦面粉色泽的分子标记辅助选择育种提供了参考信息。Flour color （whiteness） is an important index to evaluate wheat quality. Parameters for flour color （L＊, a＊, and b＊） and whiteness of 109 lines derived from wheat variety Aimengniu were evaluated in four environments, and association analysis was carried out using 971 DArT （Diversity Array Technology） markers under the mixed linear model. Twenty-seven DArT markers were found to be associated with flour color （P ≤ 0.001）, while seven markers with whiteness. Markers wPt-1196 and wPt-669693 were associated with color a＊ and b＊ in multi-environments, and the percentages of phenotypic variation explained were high. These results provide important information for marker-assisted selection of wheat flour color （whiteness）.

关 键 词：小麦 面粉色泽(白度) 矮孟牛 关联分析 DArT标记 

分 类 号：S512.1[农业科学—作物学]