小麦7^(OE)亚基导入和揉面特性的研究  

Study on 7^(OE) Subunit Introduction and Flour Mixing Properties of Wheat

作　　者：王建贺 梁丹[1] 时晓伟[1] 冯刚[1] 王从磊[1] 石斯发[1] 王继忠[1] 

机构地区：[1]天津市农作物研究所,天津300112

出　　处：《天津农业科学》2011年第3期1-4,共4页Tianjin Agricultural Sciences

基　　金：天津市农业科学院院长基金(07026)

摘　　要：利用195份矮败小麦与津强5号杂交得到的高代品系,研究了7OE亚基在其中的分布,探讨7OE亚基材料与揉面特性之间的关系。结果表明,195份材料中有6份材料扩增出447 bp的片段,占所检测品系的3.07%。7OE亚基对小麦的揉面特性部分指标有显著的正面影响,峰值高度、8分钟带宽在有无7OE基因间变异系数差别较大,含7OE亚基材料与非7OE亚基材料在8分钟带宽这一指标达到极显著差异。7OE亚基对改良小麦品质作用较大,8分钟带宽可作为品质分析的重要指标之一,此标记特异性较好,可用于中国小麦的品质改良。With aim to investigate the presence of the subunit 7OE and its relationship of the quality parameters, a total of 195 advanced lines from the dwarf male-sterile wheat and Jinqiang 5 were tested by a STS markers and mixograph factors. The results suggested that the markers TaBAC1215CO6-FS17/R964 could amplify a 447-bp in 6 lines, which indicated the presence of Bx7OE in these lines, with a frequency of 3.07%. The subunit 7OE that had a significantly better effect on mixograph factors showed more positive effects than its alternative alleles on peak time and eight minute width, and significantly better effects on eight minute width than non-7OE. Therefore, the study suggested that eight minute width might be a potential factor for improvement of quality; the STS marker could be used to detect the presence of Bx7OE gene in wheat quality improved in China.

关 键 词：矮败小麦 B_x7~OE 揉混特性 分子标记 

分 类 号：S512.1[农业科学—作物学]