| In order to provide abundant materials for genetic improvement and breeding of new wheat varieties, the agronomic traits, stripe rust resistance and quality traits of 161 F6 lines derived from a crossing between durum wheat and common wheat were determined; the correlation analysis and principal component analysis of the main traits were carried out, and 0.1K gene array was used for the functional gene analysis. The results showed that the top three lines were the number of 137, 98 and 155, respectively. The Q-type cluster analysis of the tested traits showed that the 161 lines were divided into five groups, among which group Ⅲ showed the best comprehensive performance, including 60 lines, with high resistance to stripe rust, tight spikelet arrangement, high protein content and good quality, and the number 10 line was the most representative. The distribution of population functional genes was analyzed by 0.1K array, and it was found that the offspring of F6 population contained TaCwi-A1, Qpht-2D and Yr17 genes, which had positive effects on increasing 1 000-grain weight, reducing plant height, and resisting to stripe rust. The agronomic and quality traits of the 161 lines varied greatly, and the genetic diversity was rich. The top three lines that the number of 137, 98 and 155, and the third group from Q-type can be used for genetic improvement of wheat agronomic and quality traits in Shaanxi. |
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