不同生长环境下水稻最上节间长度QTL定位研究  

QTL analysis of the uppermost internode length in rice under different growing environments

作　　者：乔保建[1] 王盈盈[1] 朱晓彪[1] 洪德林[1] 

机构地区：[1]南京农业大学作物遗传与种质创新国家重点实验室

出　　处：《遗传》2007年第8期1001-1007,共7页Hereditas（Beijing)

基　　金：长江学者和创新团队发展计划(编号:IRT0432)资助~~

摘　　要：利用由98个家系组成的Nipponbare/Kasalath//Nipponbare回交重组自交系(backcross inbred lines,BIL)作图群体(BC1F12和BC1F13)和复合区间作图方法(CIM),在3种不同的生长环境下对水稻最上节间长度进行了QTL分析。结果表明,3种不同的生长环境共检测到13个QTL,分布于第1,2,3,5,6,8,10,11染色体上,解释性状变异的3.97%～15.21%。其中qUIL-6在3种不同生长环境中均检测到,qUIL-1a,qUIL-3a,qUIL-3b和qUIL-10a等4个位点在两种不同生长环境中均被检测到,说明这些QTL位点受环境影响较小,表达较为稳定。A mapping population of 98 backcross inbred fines （ BC1F12 and BC1F13 ）, derived from a backcross of Nipponbare （japonica） / Kasalath （indica）//Nipponbare by the single seed descent methods, was employed to map quantitative trait loci （QTL） of the uppermost internode length in rice under different growing environments by composite interval mapping method. The results showed that 13 QTLs relating to the uppermost internode length were detected under three different growing environments, and these QTLs were located on chromosome 1, 2, 3, 5, 6, 8, 10 and 11, explained 3.97% -15.21% of observed phenotypic variance, respectively. The locus of qUIL-6 was detected in three growing environments, and qUIL-1a, qUIL-3a, qUIL-3b and qUIL-10a were detected in two growing environments, indicating that these QTLs were stable and little affected by the environment.

关 键 词：水稻 最上节间长度 不同生长环境 数量性状基因座定位 复合区间作图法 

分 类 号：S511[农业科学—作物学]