小麦蛋白质含量的配合力和遗传力研究

Combining Ability and Heritability of Protein Content in Wheat

本文研究了小麦籽粒蛋白质含量在F_1及F_2代中的表现情况。结果表明,控制蛋白质含量的基因作用以加性效应为主,同时存在非加性效应;F_1代子粒蛋白质含量与双亲平均值高度相关,F_2代中子粒蛋白质含量分离呈正态分布,且正态分布的峰值蛋白质含量也接近双亲平均值。蛋白质含量的一般配合力大于特殊配合力方差,并计算了蛋白质含量的广义和狭义遗传力。

The expression of wheat grain protein content in F1 as well as descendant F2 were studied. The result showed that the genes that control protein content transmitted to the descendants were mainly based on additive effect, but also with the non-additive effect. The grain protein content of F1 was highly related to the average value of both parents,and the protein content in descendant F2 appeared in normal distribution. The variance of general combining ability is larger than that of special combining ability. The heritability in broad and narrow sense were calculated.