作物学报 ›› 2014, Vol. 40 ›› Issue (02): 214-221.doi: 10.3724/SP.J.1006.2014.00214
吴亚辉,陶星星,肖武名*,郭涛,刘永柱,王慧,陈志强*
WU Ya-Hui,TAO Xing-Xing,XIAO Wu-Ming*,GUO Tao,LIU Yong-Zhu,WANG Hui,CHEN Zhi-Qiang*
摘要:
水稻穗部性状与产量关系密切。以粳稻品种日本晴和一个大穗籼稻材料H71D为亲本构建F2群体,于2011和2012年分别以172个单株和138个单株,对穗长、一次枝梗数、二次枝梗数、总粒数、穗着粒密度等5个穗部性状进行QTL定位。以LOD≥3为阈值,两年共检测到38个QTL,其中2011年21个,2012年17个,2年重复检测到的QTL为4个,占总数的10.5%。5个性状之间大都具有显著的表型相关性,相关性较强的性状之间具有较多相同或紧密连锁的QTL,效应值较大的QTL易于在不同群体和不同环境中被重复检测到。检测到的QTL为进一步进行元分析和精细定位打下了基础,也为通过分子标记辅助选择提高产量提供了有用信息。
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