[Objective] The study aimed to investigate the utilization value of parent material SW3243 in wheat breeding,and its pedigree was 1426/4/IR68-77/YAA//ALD＇S＇/3/YAZ//ST2022/983.[Method] The selection,agronomic traits,...[Objective] The study aimed to investigate the utilization value of parent material SW3243 in wheat breeding,and its pedigree was 1426/4/IR68-77/YAA//ALD＇S＇/3/YAZ//ST2022/983.[Method] The selection,agronomic traits,some quality-related genetic traits,and the application of 1BL/1RS translocation line in breeding were analyzed.[Result] SW3243 had the following characteristics：the SW3243 was high resistant to stripe rust race CYR29 and CYR30,and did not suppress the performance of resistant genes;SW3243 showed lots of advantages such as dwarf,more spike lets,large spike,high yield potential and early maturity even in late planting;the high molecular weight glutenin subunit（HMW-GS）of SW3243 was composed in the form of 1,7 ＋8,2 ＋12,containing 232 bp fragment of PPO allele;Waxy protein subunit was not lost;its grain contains a small amount late maturing α-amylase;SW3243 contained 1BL/1RS translocation line,but it was significantly different from the tested translocation lines;a large number of new lines had been developed from SW3243 in Sichuan,among them,42 derived lines attended provincial and national yield trial respectively,and seven varieties were released in Sichuan Province and three were released in national level;the planting area of SW3243 and its derived varieties were totally extended to 4.33 million hm2 in Sichuan.[Conclusion] The wheat variety SW3243,which had excellent agronomic traits,was the important parent material for wheat breeding in Sichuan.The research will provide reference for the innovation in germplasm resources and high-yield breeding of wheat.展开更多
基金Supported by International Cooperation Program of the Ministry of Science and Technology of China(2007DFA31480)Project of Department of Science and Technology of Sichuan Province~~
文摘[Objective] The study aimed to investigate the utilization value of parent material SW3243 in wheat breeding,and its pedigree was 1426/4/IR68-77/YAA//ALD＇S＇/3/YAZ//ST2022/983.[Method] The selection,agronomic traits,some quality-related genetic traits,and the application of 1BL/1RS translocation line in breeding were analyzed.[Result] SW3243 had the following characteristics：the SW3243 was high resistant to stripe rust race CYR29 and CYR30,and did not suppress the performance of resistant genes;SW3243 showed lots of advantages such as dwarf,more spike lets,large spike,high yield potential and early maturity even in late planting;the high molecular weight glutenin subunit（HMW-GS）of SW3243 was composed in the form of 1,7 ＋8,2 ＋12,containing 232 bp fragment of PPO allele;Waxy protein subunit was not lost;its grain contains a small amount late maturing α-amylase;SW3243 contained 1BL/1RS translocation line,but it was significantly different from the tested translocation lines;a large number of new lines had been developed from SW3243 in Sichuan,among them,42 derived lines attended provincial and national yield trial respectively,and seven varieties were released in Sichuan Province and three were released in national level;the planting area of SW3243 and its derived varieties were totally extended to 4.33 million hm2 in Sichuan.[Conclusion] The wheat variety SW3243,which had excellent agronomic traits,was the important parent material for wheat breeding in Sichuan.The research will provide reference for the innovation in germplasm resources and high-yield breeding of wheat.
