| To speed up the process of high quality wheat breeding, HMW GS marker assisted selection were adopted in separate generation (F2) of different crosses with Yanyou 361, Jimai 20, Zhengyou 6 and Bainong 66. Fourteen high quality HMW GS lines were selected after continuous selection for a few generations. The agronomic and yield traits of selected lines were evaluated and showed that, all the selected 14 wheat lines had excellent combination of HMW GS, and the value of main quality characters, such as protein content, sedimentation value, wet gluten content, gluten index, water absorption and dough stability time, were high. Most traits of these lines were better than that of one or all of their parents, especially the quality traits above of new line 6245 were better than that of both parents. Most materials selected had proper height, excellent agronomic traits and resistances to the major diseases of wheat in field, such as stripe rust, powdery mildew and leaf rust, etc., which could be used in breeding. It was suggested that HMW GS markers assisted selection was effective for selecting new high quality wheat lines. |
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