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基于SRAP的小麦籽粒性状QTL定位

DOI: 10.3969/j.issn.1000-7091.2012.05.014, PP. 72-79

Keywords: 小麦籽粒性状,SRAP和SSR,QTL定位

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Abstract:

籽粒大小和形态性状影响到小麦的产量和磨粉品质。为了鉴定小麦籽粒性状相关的数量性状位点(QTL),以大粒品种西农817为母本和小粒品种中国春为父本及其F2群体为试验材料,分析籽粒长度、宽度、厚度及千粒质量的性状表现,并利用SRAP结合锚定标记SSR构建的遗传图谱,对这4个性状进行QTL定位分析。共检测到50个影响籽粒长度、宽度、厚度及千粒质量的QTLs,这些QTL分布在1A、2A、2D、3B、4B、4D、5D、6A、6D、7A染色体和5个连锁群。在检测到的QTLs中,与籽粒长度、宽度、厚度和千粒质量相关的QTL分别为16,13,10和11个。

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