QTL mapping of starch granule size in common wheat using recombinant inbred lines derived from a PH82-2/Neixiang 188 cross
QTL mapping of starch granule size in common wheat using recombinant inbred lines derived from a PH82-2/Neixiang 188 cross
复制标题
使用 PH82-2/内乡 188 杂交重组自交系对普通小麦淀粉颗粒大小进行 QTL 定位
DOI：
10.1016/j.cj.2013.07.003
复制
发表时间：
2013-12-01
期刊：
影响因子：
6.6
通讯作者：
Zhang, Yan
中科院分区：
文献类型：
--
作者：
Feng, Nan;He, Zhonghu;Zhang, Yan
淀粉是决定小麦(Triticum aestivum L.)产品加工品质的关键成分。小麦淀粉一般含有A型和B型淀粉颗粒，对淀粉性质和最终使用品质有不同的影响。本研究用重组自交系PH82-2/内香188配制的重组自交系240份，分三季在河南安阳、中国等地进行了试种。用激光衍射仪测定A型和B型颗粒的含量，定义为占总淀粉体积的百分比。利用195个SSR和STS标记构建了遗传图谱。采用复合区间作图法进行QTL分析。在1d1、7bl和4al染色体上定位了3个控制A型淀粉粒含量的QTL，分别解释了5.6%、5.2%和3.8%的表型变异。这些结果为改良普通小麦的淀粉品质提供了有用的信息。(C)2013年中国作物科学学会和中国科学院作物科学研究所。爱思唯尔B.V.制作和主办。保留所有权利。
Starch is a crucial component determining the processing quality of wheat (Triticum aestivum L.)-based products. Wheat starch generally contains A-type and B-type starch granules, having different effects on starch properties and end-use qualities. In the present study, 240 recombinant inbred lines (RILs) derived from a PH82-2/Neixiang 188 cross were grown in Anyang, Henan, China, during three cropping seasons. A-type and B-type granule contents were determined using a laser diffraction particle size analyzer, defined as the percentage of total starch volume. A total of 195 SSR and STS markers were used to construct a genetic map. QTL analysis was performed by composite interval mapping. Three QTL for A-type starch granule content were mapped on chromosomes 1DL, 7BL and 4AL, explaining 5.6%, 5.2% and 3.8% of the phenotypic variation, respectively. These results provide useful information for improving starch quality in common wheat. (C) 2013 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. All rights reserved.