摘要
以水稻汕优63衍生的241个重组自交系为供试材料,构建包括221个主效应以及两两标记间221×(221-1)/2=24 310个上位性效应在内的超饱和统计遗传模型。分别采用E-BAYES,Stepwise,PENAL,LASSO和SSVS 5种超饱和模型分析方法对该群体进行模拟试验,获得最优的分析方法 E-BAYES,并用该方法对该群体的10个农艺性状进行QTL分析,共检测到73个QTL,分布于水稻的12条染色体上,进一步证实该强优势籼型杂交组合的遗传构成。
In this paper, based on a set of 241 recombinant inbred lines （ RIL） derived from Shanyou63, the simulated data of an oversaturated genetic model including 221 main effects and 221 ＆#215;（221-1）/2 =24 310 epitasis effects were analyzed by five methods：E-BAYES, Stepwise, PENAL, LASSO and SSVS, respectively.The results of the simulation study indicated that the E-BAYES method provided accurate estimates of both the QTL effects and location with very high statistical power .A total of 73 QTL covering 12 rice chromosomes were found by the method of E-BAYES underlying 10 agronomic traits, which provided a deeper understanding of the genetic architecture of the cross.
出处
《浙江农业学报》
CSCD
北大核心
2014年第2期268-273,共6页
Acta Agriculturae Zhejiangensis
基金
江苏省"作物生产与保护"重点专业群项目(2012074)
关键词
汕优63
数量性状基因座
遗传构成
超饱和模型
变量选择法
Shanyou63
quantitative trait loci （QTL）
genetic architecture
oversaturated model
variable selection
