利用染色体单片段代换系定位水稻低温发芽率QTL  

Identification of quantitative trait loci for low temperature germination rate with single segment substituted lines in rice

作　　者：朱金燕[1,2] 刘楠 王军 周勇[4] 范方军[1,2] 李文奇[1,2] 王芳权[1,2] 许扬 仲维功[1,2] 梁国华 杨杰[1,2] 

机构地区：[1]江苏省农业科学院粮食作物研究所/崮家水稻改良中心南京分中心,江苏南京210014 [2]扬州大学江苏省粮食作物现代产业技术协同创新中心,江苏扬州225009 [3]江苏第二师范学院生命科学与化学化工学院,江苏南京210013 [4]扬州大学教育部植物功能基因组学重点实验室/江苏省作物遗传生理重点实验室,江苏扬州225009

出　　处：《扬州大学学报（农业与生命科学版）》2017年第4期74-80,共7页Journal of Yangzhou University：Agricultural and Life Science Edition

基　　金：国家自然科学基金资助项目(31400175);江苏省现代农业研发项目(BE2015355);江苏科技成果转化资金项目(BA2014134);公益性行业科研专项(201303102)

摘　　要：以85个籼稻品种广陆矮4号为受体亲本、粳稻品种日本晴为供体亲本的染色体单片段代换系为研究材料,利用SPSS软件对水稻低温发芽率QTL进行鉴定和遗传效应分析。结果表明:以P≤0.000 1为阈值共检测到20个低温发芽率QTL,分布在除第4、7、8和10染色体的其余8条染色体上;其加性效应均表现为增效作用,加性效应值的变化范围为9.00%~26.00%,加性效应百分率的变化范围为26.47%~76.47%;运用代换作图法对其中11个低温发芽率QTL进行初步定位。QTL identification for low temperature germination rate was done using a set of 85 chromosome single segment substitution lines with Nipponbare as donor and Guangluai 4 as receptor by SPSS（P≤0.000 1）.Twenty QTL for low temperature germination rate were detected on eight rice chromosomes,except chromosome 4,7,8 and 10.All these QTL had positive addictive effects ranging from 9.00%-26.00%,with addictive effect percentages ranging from 26.47%-76.47%.Eleven QTL of them were primarily mapped by substitution mapping.All the results will provide useful information for exploring and using new low temperature germination rate related resources.

关 键 词：水稻 染色体单片段代换系 数量性状位点 低温发芽率 

分 类 号：S511[农业科学—作物学]