利用RIL群体分析HMW-GS对小麦品质性状的量化效应  

Quantitative Effects of High Molecular Weight Glutenin Subunits (HMW-GS) on Wheat Quality Traits Using the Population of Recombinant Inbred Lines (RIL)

作　　者：孙海艳[1] 李斯深[2] 姜鸿明 范玉顶[1] 李瑞军[1] 赵倩 

机构地区：[1]山东农业大学农学院 [2]山东省烟台市农业科学院,山东烟台264000

出　　处：《作物学报》2004年第3期253-257,共5页Acta Agronomica Sinica

基　　金：山东省科技厅的资助项目

摘　　要：利用重组自交系群体———RIL 8群体的 131个系及其亲本为材料 ,分析了高分子量麦谷蛋白亚基及亚基组合对10个小麦品质性状的量化效应及其差异。结果表明 ,RIL 8群体Glu A1、Glu B1、Glu D1位点编码的亚基分别为 1、N ,7+9、7+8和 5 +10、2 +12 ,主要存在 7种亚基组合类型。同一位点不同亚基对面粉吸水率、Zeleny沉淀值、面团形成时间、稳定时间、公差指数、断裂时间等共 6个性状均有不同程度的显著影响 ;而对蛋白质含量、湿面筋含量、干面筋含量、GMP含量等 4个性状无显著影响。 7种不同位点亚基组合对干面筋含量、蛋白质含量没有显著影响 ,对湿面筋含量、GMP含量、Zeleny沉淀值、面粉吸水率、面团形成时间、稳定时间、公差指数、断裂时间等 8性状均有显著影响。表明同一位点不同亚基、不同位点亚基组合对品质性质均具有重要作用。The quantitative effects of high molecular weight glutenin subunits (HMW-GS) on 10 wheat quality traits were analyzed using a population of recombinant inbred lines (RIL), RIL-8, which included 131 lines obtained from a cross bet- ween Chuan 35050 and Shannong 483. The results showed that the HMW-GS of RIL-8 at Glu-A1, Glu-B1 and Glu-D1 loci were 1, N; 7+8, 7+9 and 5+10, 2+12, respectively. The effects were significant differences between different subunits at same loci for water absorption, zeleny sedimentation value, dough development time, dough stability time, mixing tolerance index and breakdown time. On the contrary, no significant differences were detected for wet and dry gluten con- tent, protein content and glutenin macropolymer (GMP) content. The influences of 7 different subunit combinations at different loci of RIL-8 were significant differences for water absorption, wet glutenin content, GMP content, zeleny sedimentation value, protein content, dry gluten content, dough development time, dough stability time, mixing tolerance index and breakdown time, but were not significant difference for dry gluten content and protein content. These indicated that the different subunits at same loci and different subunit combinations at different loci have important effects to wheat quality traits.

关 键 词：小麦 品质性状 RIL-8群体 高分子量麦谷蛋白亚基 量化效应 重组自交系 HMW-GS 

分 类 号：S512.1[农业科学—作物学]