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作者	单位
李亚青，张楠，张士昌，何明琦，李孟军	（石家庄市农林科学研究院/河北省小麦工程技术研究中心，河北石家庄 050041）

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中文摘要:

为深入挖掘1BL/1RS易位系的品质育种潜力，对收集的300份1BL/1RS易位系的高分子量麦谷蛋白亚基（HMW-GS）组成及其品质性状进行了分析。在300份1BL/1RS易位系 Glu-1位点上共检出12种HMW-GS类型和27种HMW-GS组合，表明这些1BL/1RS易位系具有较高的遗传多样性。在 Glu-A1位点上，亚基Null和1亚基的出现频率分别为47.67%和52.33%； Glu-B1 位点有7种等位变异，其中出现频率最高的为7+9 亚基对（58.67%）; Glu-D1 位点有3 种等位变异， 2+12 亚基对为主要类型，出现频率为71.33%。亚基组合类型中，“Null/7+9/2+12”的出现频率最高（31. 67%）。 Glu-A1、 Glu-B1和 Glu-D1编码优质HMW-GS的比例分别为52.33%、38.34%和16.00%，其中31份1BL/1RS易位系在3个位点均编码优质HMW-GS类型。300份1BL/1RS易位系的品质变异范围较大，有9份材料具有较高的品质育种价值。

英文摘要:

In order to further explore the quality breeding potential of 1BL/1RS translocation wheat lines,the composition of high-molecular-weight glutenin subunit(HMW-GS）and quality properties of 300 1BL/1RS translocation wheat lines were analyzed. There were 12 types of HMW-GS and 27 types of HMW-GS combinations,which indicated that Glu-1 loci had higher level of variation among 1BL/1RS translocation lines. The frequencies of HMW-GS Null and 1 at Glu-A1 locus were 47.67% and 52.33%. Seven alleles were identified at Glu-B1 locus,among which 7+9 subunits showed the highest frequency(58.67%). There were three alleles at Glu-D1 locus,among which 2+12 was the most popular allele(71.33%). Null,7+9 and 2+12 presented the highest frequency(31.67%）among all the subunit combinations. The frequencies of prior subunits encoded by Glu-A1, Glu-B1 and Glu-D1 loci,were 52.33%,38.34% and 16.00%,respectively. There were 31 wheat lines carrying good-quality subunits at 3 Glu-1 loci. The quality properties of 300 1BL/1RS translocation wheat lines showed distinct differences,among which 9 lines could be utilized in wheat quality breeding.

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