Page 29 - 《华中农业大学学报》2025年第1期

第 1 期 陈俊鹏 等：121 份小麦地方品种 HMW-GS 组成分析 23

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Compositions of HMW-GS in 121 wheat landraces in China

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CHEN Junpeng ,PENG Min ,WANG Xiaofang ,TANG Qingyi ,ZHANG Daorong ,REN Xifeng 1
1.College of Plant Science and Technology/Hubei Hongshan Laboratory， Huazhong
Agricultural University， Wuhan 430070， China；
2.Shiyan Academy of Agricultural Sciences， Hubei Province，Shiyan 442000 ， China；
3.Xiangyang Academy of Agricultural Sciences， Hubei Province，Xiangyang 441057 ， China

Abstract The compositions of HMW-GS in 121 wheat landraces in China were identified and ana‐
lyzed with SDS-PAGE to mine high-molecular-weight glutenin subunits （HMW-GS） combinations with
application value and screen wheat landraces with high-quality. The results showed that 3， 9 and 6 types of
allelic variations were detected in the materials tested at the Glu-A1， Glu-B1 and Glu-D1 locus， respec‐
tively. Among them， null， 5+10， and 2+12 had the highest frequency at the Glu-A1， Glu-B1 and Glu-

D1 locus， with the frequency of 78.51%， 76.86%， and 76.03%， respectively. There were 30 combina‐
tions of subunit formed by different types of allelic variation， among which the combination type of null/7+
8/2+12 subunit had the highest proportion， accounting for 55.37%. However， the quality score of this
combination type of subunits was relatively low， with 6 points only. The combination types of subunits in‐
cluding 1/7+8/5+10， 1/7+9/5+12， 1/7+9/5+10， 2 */7+8/5+10， and 2 */7+9/5+12 had the
highest score and became high-quality combinations of subunits. Wheat landraces with these high-quality
combinations of subunits including Jiangmai， Qianjiaomai and Bianguangtoukemai， etc. ，can be used as
elite genetic resources for improving the quality of modern wheat.
Keywords wheat； landraces； high molecular weight-glutenin subunits （HMW-GS）； quality im‐

provement； combination of subunits

（责任编辑：张志钰）