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).