QTL Mapping for Important Quality Traits in Common Wheat

Objective) QTL for wheat processing quality traits and their linked molecular markers are to be identified for wheat quality improvement with marker-assisted selection. (Method)In the present study, a total of 240 F5:6 lines from the cross PH82-2/Neixiang 188 were planted in a Latinized alpha-lattice design in Jiaozuo and Anyang of Henan Province and Taian of Shandong Province, respectively. Grain protein contents, Zeleny sedimentation value, Mixograph and RVA parameters were evaluated. A genetic map was constructed based on 188 SSRs and four protein markers. QTL analysis was conducted with the software QTL Cartographer 2.5. (Result) Three QTLs were detected for kernel protein content on chromosomes 3A and 3B. Three QTLs were found for Zeleny sedimentation value on chromosomes 1B, 1D and 3B, in which the QTLs on chromosome 1B and 1D