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大豆株高QTL定位及Meta 分析

DOI: 10.7685/j.issn.1000-2030.2011.03.003, PP. 13-19

Keywords: 大豆,株高,数量性状基因座,多QTL联合分析,Meta分析

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Abstract:

以溧水中子黄豆和南农493-1杂交衍生的504个正反交F2颐4家系为研究对象,于2008年在江苏南京和山东临沂两地种植,鉴定其株高表型。采用多QTL联合分析方法进行QTL分析,检测到株高存在环境效应和细胞质效应,定位了15个主效QTL、2个与环境互作的QTL和6个与细胞质互作的QTL。将Soybase数据库中信息完全的90个株高QTL和本研究检测的株高QTL映射到大豆公共图谱soymap2上,利用BioMercator2.1软件进行Meta分析。结果表明分布于C2、F、L和M染色体上的18个较小置信区间存在一致性QTL,其中包括本研究发现的C2染色体上的qPH鄄6鄄2、qPH鄄6鄄3和M染色体上的qPH鄄7鄄1、qPH鄄7鄄2、qPH鄄7鄄3共5个QTL。

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