Glu-1和Glu-3等位变异及1BL/1RS易位与面包和面条品质关系的研究

 高分子量麦谷蛋白亚基（HMW-GS）和低分子量麦谷蛋白亚基（LMW-GS）组成和1BL/1RS易位是决定小麦加工品质的关键因素。将试验Ⅰ80份和试验Ⅱ78份国内外小麦品种分别在2种和4种环境条件下种植，研究了HMW-GS和LMW-GS的组成及1BL/1RS易位对面团流变学特性、面包和面条品质的影响。结果表明，Glu-B1、Glu-D1和Glu-B3位点对面团流变学特性、面包和面条品质的效应较大，而Glu-A3位点的效应较小。单个亚基对面筋强度和面包体积的贡献大小为，在Glu-A1位点，1＞2*＞N；在Glu-B1位点，7+8＞7+9；在Glu-D1位点，5+10＞4+12＞2+12；在Glu-A3位点，Glu-A3d＞Glu-A3c＞Glu-A3a；在Glu-B3位点，Glu-B3d＞Glu-B3f＞Glu-B3b＞Glu-B3j。单个亚基对延伸性和面条评分的贡献大小为，在Glu-A1位点，1＞N；在Glu-B1位点，20＞7+9＞7+8；在Glu-D1位点，4+12＞5+10≥2+12；在Glu-A3位点，Glu-A3c≥Glu-A3d＞Glu-A3a；在Glu-B3位点，Glu-B3b≥Glu-B3f＞Glu-B3d＞Glu-B3j。1BL/1RS易位对面团流变学特性、面包和面条品质皆有极显著的负面影响。

Effect of Allelic Variation at the Glu-1 and Glu-3 Loci and Presence of 1BL/1RS Translocation on Pan Bread and Dry White Chinese Noodle Quality

High molecular weight glutenin subunitins (HMW-GS), low molecular weight glutenin subunits (LMW-GS), and 1BL/1RS translocation play an important role in determining the processing quality in common wheat. 80 and 78 cultivars and advanced lines in trial Ⅰ and trial Ⅱ were sown in two and four environments, respectively. They were used to investigate the effect of HMW-GS, LMW-GS and 1BL/1RS translocation on dough rheological characteristics, pan bread and dry white Chinese noodle quality. Glu-B1, Glu-D1 and Glu-B3 loci play a determinant role in dough rheological characteristics, pan bread and dry white Chinese noodle quality and Glu-A3 locus has slight contribution to them. For gluten strength and loaf volume, at Glu-A1 locus， 1>2*>N；at Glu-B1 locus，7+8>7+9；at Glu-D1 locus，5+10>4+12>2+12；at Glu-A3 locus；Glu-A3d>Glu-A3c> Glu-A3a; at Glu-B3 locus, Glu-B3d>Glu-B3f>Glu-B3b>Glu-B3j. For extensibility and noodle score, at Glu-A1 locus，1>N；at Glu-B1 locus，20>7+9>7+8； at Glu-D1 locus，4+12>5+10≥2+12；at Glu-A3 locus，Glu-A3c≥Glu-A3d>Glu-A3a；at Glu-B3 locus, Glu-B3b≥Glu-B3f>Glu-B3d>Glu-B3j. Lines carrying 1BL/1RS translocation show significantly delerious effect on dough rheological characteristics, pan bread, and dry white Chinese noodle quality.