Preliminary Study on Quality of F_1 and F_2 of Hybrid Wheat and High Molecular Weight Glutenin Subunits Compositions

In order to detect the quality of F1 and F2 of hybrid wheat and high molecular weight glutenin subunits compositions,14 parents with different quality patterns was selected and 8 kinds of hybrid combinations was conducted as follows: strong-gluten×strong-gluten,strong-gluten×medium-gluten,strong-gluten×weak-gluten,medium-gluten×strong-gluten,medium-gluten×medium-gluten,weak-gluten ×strong-gluten,weak-gluten ×medium-gluten,weak-gluten ×weak-gluten,and then F2 quality and the high molecular weight glutenin subunits compositions of patents,F1 and F2 were determined.The results showed that female parent featured of good quality and elite subunit played an important role in quality improvement of hybrid wheat;5+10 subunit was present and has significant influence on quality,so it is suggested that introduction of 5+10 subunit is of great vital to quality improvement of hybrid wheat.Research on high molecular weight glutenin subunits compositions of patents,F1 and F2 showed that co-expression,incomplete expression and deletion subunits was observed,and deleted subunit bands were primarily bands of male parent,hence it is further indicted that selection of female parent with elite subunit is important to quality improvement of hybrid wheat.These results provided theoretical base and technical assistance to conduct combination of high yield and good quality wheat.