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利用贝叶斯法进行水稻籽粒植酸含量性状的QTL定位及互作分析
引用本文:李茂柏,王慧,张建明,李丁鲁,杨润清,周宇琼,朴钟泽.利用贝叶斯法进行水稻籽粒植酸含量性状的QTL定位及互作分析[J].中国水稻科学,2009,23(5):475-480.
作者姓名:李茂柏  王慧  张建明  李丁鲁  杨润清  周宇琼  朴钟泽
作者单位:1. 上海市农业科学院,作物育种栽培研究所,上海,201106
2. 韩国农村振兴厅,农业生命工学研究院,韩国,水原,441-707
3. 上海交通大学,农业与生物学院,上海,200240
基金项目:上海市国际合作计划资助项目,科技部国际科技合作项目 
摘    要: 利用水稻植酸含量差异较大的品种中花11(粳型)和LPA(籼型)为亲本杂交获得F2群体的172个单株,构建了含126个SSR和4个STS标记的遗传连锁图谱,利用贝叶斯(Bayesian)法对水稻籽粒植酸含量性状进行了主效应QTL定位和上位性互作分析。共检测到 3 个与水稻籽粒植酸含量性状有关的主效QTL,分布在第3、5和6 染色体的相应区间内,表型贡献率分别为538%、802%和462%,降低籽粒植酸含量的等位基因均来自亲本LPA。检测到10对上位性互作影响籽粒植酸含量, 分布于水稻第1、3、5、6、11染色体上,互作效应值为169~518,其表型变异的解释率为867%~2473%。

关 键 词:水稻  植酸  数量性状基因座  贝叶斯法
收稿时间:1900-01-01;

QTL Mapping and Epistasis Analysis for Phytic Acid Concentration in Rice Grain by Using the Bayesian Model Selection
LI Mao-bai,WANG Hui,ZHANG Jian-ming,LEE Jung-ro,YANG Run-qing,ZHOU Yu-qiong,PIAO Zhong-ze.QTL Mapping and Epistasis Analysis for Phytic Acid Concentration in Rice Grain by Using the Bayesian Model Selection[J].Chinese Journal of Rice Science,2009,23(5):475-480.
Authors:LI Mao-bai  WANG Hui  ZHANG Jian-ming  LEE Jung-ro  YANG Run-qing  ZHOU Yu-qiong  PIAO Zhong-ze
Institution:Crop Breeding and Cultivation Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; National Institute of Agricultural Biotechnology, Rural Development Administration, Suwon 441 707, Korea; School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240, China; These authors contributed equally to this paper; *Corresponding author, E-mail: zzpiao@163.com
Abstract:Main QTL and epistasis interaction effects for phytic acid concentration in rice grain were investigated by using a F_2 population consisted of 172 lines derived from the cross between an indica rice LPA(the grain phytic acid concentration was 7.11 mg/g) and a japonica rice Zhonghua 11(the phytic acid concentration was 11.92 mg/g) with the Bayesian model selection. A genetic linkage map including 126 SSR and 4 STS markers was constructed with the F_2 population. Three main QTLs related to phytic acid concentration in rice grain were detected. They were located on chromosomes 3, 5, and 6, explaining 5.38%, 8.02%, and 4.62% of phenotypic variation, respectively. The three alleles for reducing the phytic aid concentration were from the parent LPA. Ten pairs of epistatic interaction were detected on chromosomes 1, 3, 5, 6, and 11, with the interaction effects from 1.69 to 5.18 and the percentages of phenotypic variance ranged from 8.67% to 24.73%.
Keywords:rice  phytic acid  quantitative trait locus  Bayesian model selection
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