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作者	单位
赖勇^1,2，马小乐²，孟亚雄³，李葆春⁴，尚勋武²，王化俊^1,2	（1. 甘肃省作物遗传改良与种质创新重点实验室，甘肃兰州730070； 2. 甘肃农业大学农学院，甘肃兰州 730070； 3. 甘肃农业大学研究测试中心，甘肃兰州730070； 4. 甘肃农业大学生命科学技术学院，甘肃兰州730070）

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中文摘要:

为了给小麦品质遗传改良提供参考，对59份CIMMYT春小麦材料的HMW GS组成及其品质状况进行了分析。结果表明，供试材料中Glu A1上的HMW GS有3种类型，分别是1、2^*和null，其中1出现的频率最高，为44.07％；Glu B1位点有9种类型，其中6+8和14+15出现的频率最高，分别是37.29％和32.20％；Glu D1位点有11种类型，其中10亚基出现的频率最高，为25.42％。总共检测到33种HMW GS组合变异类型，其中1/14+15/10出现频率最高，为10.17%。59份CIMMYT春小麦材料的综合品质均较差，不适合直接推广，但有些优质亚基出现的频率较高，因而可以作为改善我国春小麦现有品种亚基组成状况的亲本材料加以利用。

英文摘要:

In order to provide information for wheat quality improvement, the composition of High Molecular Weight Glutenin Subunits (HMW GS) and the quality properties of 59 CIMMYT spring wheat lines were investigated. The results indicated that three kinds of HMW GS, including subunit 1, 2^* and null, were detected at Glu A1 locus, and the frequency of subunit 1 was the highest with 44.07%. There were 9 kinds of HMW GS at Glu B1 locus, and the frequencies of allelic combination 6+8 and 14+ 15 were 37.29％ and 32.20％, respectively. Eleven HMW GS types at the Glu D1 locus were detected, with a frequence of 25.42％ for subunit 10. Thirty three kinds of HMW GS combinations were detected from 59 CIMMYT spring wheat lines, and the frequencies of HMW GS 1, 14+15, 10 and null, 6+8, 2+10 were higher than the others. Based on the results of quality analysis, 59 CIMMYT spring wheat lines could be used as parent material for quality improvement of Chinese spring wheat.

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