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作者	单位
朱保磊,陈金平，李刚，周国勤，赵万兵，赵永涛，陈杰，陈建辉5，石守设，詹克慧⁶	（1.信阳市农业科学院，河南信阳 464000；2.信阳市种子管理站，河南信阳 464000；3.漯河市农业科学院，河南漯河 462000；4.驻马店市农业科学院，河南驻马店 463000；5.河南省对外科技交流中心，河南郑州 450003；6.河南农业大学农学院，河南郑州 450002）

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中文摘要:

为了探索小麦不溶性谷蛋白（IG）含量与品质的关系，对176份不同筋力小麦材料的IG含量、HMW-GS组成类型和加工品质参数进行了检测及相关性分析。结果表明，供试材料的平均IG含量为  2.44%，变化范围为1.25%~3.71%。共检测到10种HMW-GS亚基类型和16种亚基组合，其中，出现频率较高亚基类型是1（76.13%）、7+9（61.37%）、2+12（51.70%）和5+10（48.30%），出现频率较高亚基组合是1/7+9/2+12（25.57%）和1/7+9/5+10（22.16%）。亚基类型与IG含量显著相关，其中，优质亚基1、7+8和5+10比同位点的其他等位变异均显著增加IG含量，亚基组合1/7+8/5+10的IG含量最高，N/14+  15/5+10的IG含量最低。IG含量与蛋白质含量、吸水率和稳定时间均呈显著正相关。IG含量可以作为小麦品质育种的快速有效检测指标。

英文摘要:

To explore relationship between insoluble glutenin(IG) content and wheat quality, 176 accessions with different gluten strength were collected to determine their IG content, HMW-GS compositions and quality. Statistical analysis showed that the average IG content was 2.44%, and the variation among the materials was large, ranging from 1.25% to 3.71%. A total of 10 HMW-GS types and 16 combinations were found. The subunits 1,7+9,2+12 and 5+10 had higher frequency of occurrence:76.13%, 61.37%, 51.70% and 48.30%, respectively, and the combinations 1/7+9/2+12 and 1/7+9/5+10 had higher frequency of occurrence:25.57%and 22.16%, respectively. The IG content was significantly associated with different subunit combinations. Good quality subunits 1, 7+8 and 5+10 had higher IG content compared with other alleles at the same locus.The subunit combination1/7+8/5+10 had the highest IG content, while N/14+15/5+10 had lowest IG content. Moreover, IG content was significantly positively correlated with protein content, water absorption and stability time. IG content can be used as a quick and effective index for quality detection in wheat breeding.

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