籼粳稻杂交后代花时性状的QTL分析  

QTL Analysis on Flowering Time in Filial Generations of Cross between Indica and Japonica Rice

作　　者：马作斌[1] 詹瞻[2] 徐海[1] 徐正进[1] 毛艇[3] 朱春杰[1] 郭艳华[1] 

机构地区：[1]沈阳农业大学水稻研究所,农业部作物生理生态遗传育种重点开放实验室,辽宁省北方粳稻遗传育种重点实验室,沈阳110866 [2]沈阳农业大学农学院,沈阳110866 [3]辽宁省盐碱地利用研究所,辽宁盘锦124200

出　　处：《植物生理学报》2011年第8期799-802,共4页Plant Physiology Journal

基　　金：国家高技术研究发展计划(863计划)项目(2010AA10-1303-2);辽宁省创新团队项目(LT2010095);辽宁省博士启动基金(20101102)

摘　　要：研究典型籼稻品种‘七山占’和典型粳稻品种‘秋光’杂交衍生的重组自交系群体及其双亲的花时性状,并用该群体的分子连锁图谱进行QTL分析,共检测到6个与水稻花时性状相关的QTL,包括1个始花时QTL、3个盛花时QTL和2个终花时QTL,分别位于第1、2、7、8、10和12染色体,单个QTL的贡献率在7.08%～26.95%之间。有4个增效等位基因来源于粳型亲本‘秋光’,2个来源于籼型亲本‘七山占’。QTLs for flowering time were identified in the population derived from a cross between typical japonica rice ＇Akihilari＇ and indica rice ＇Qishanzhan＇.Totally,6 QTLs for the flowering time of rice were identified and mapped on chromosome 1,2,7,8,10,and 12,respectively.One putative QTL for flowering-begin-time was located on chromosomes 12.Three putative QTLs for vigorous-flowering-time were located on chromosomes 1,8 and 10.Two QTLs for flowering-end-time were located on chromosomes 2 and 7.The contribution of single QTL was between 7.08%-26.95%.There were four efficiency alleles from the typical japonica rice ＇Akihilari＇ and two efficiency alleles from indica rice ＇Qishanzhan＇.

关 键 词：水稻 数量性状基因座 花时 

分 类 号：S511[农业科学—作物学]