Abstract: Variation in the electrophoretic banding patterns of high-molecular-weight glutenin subunits (HMW-GS) of 186 common wheat (Triticum aestivum L.) germplasms that originated from China was examined by sodium dodecyl sulfate polyacrylamide gel electrophoresis in order to improve the effective utilization of these germplasms. The bread-making quality score of each genotype was calculated. The high level of genetic variation at Glu-1 locus was observed. Seventeen major glutenin HMW-GS were detected and 30 HMW-GS compositions were observed. The percentage of cultivars with more than two subunits related to good quality were 38.7% among 186 wheat lines. There were 13 lines with bread-making quality scores of 10 in combination with one or two good agronomical traits, such as high-yield, dwarfing, resistance to diseases and/or tolerant abiotic stress. These new germplasms can be the important resources for improvment bread making quality.

Key words: Wheat germplasm, High-molecular-weight glutenin subunits (HMW-GS), Quality scores, germplasms