<FONT face="Verdana">QTL Mapping and Epistasis Analysis for Phytic Acid Concentration in Rice Grain by Using the Bayesian Model Selection</FONT>

LI Mao-bai,#,WANG Hui，#,ZHANG Jian-ming,LEE Jung-ro,YANG Run-qing,ZHOU Yu-qiong,PIAO Zhong-ze

doi:10.3969/j.issn.10017216.2009.05.05

Chinese Journal OF Rice Science >

2009 , Vol. 23 >Issue 5: 475 - 480

DOI: https://doi.org/10.3969/j.issn.10017216.2009.05.05

研究报告

QTL Mapping and Epistasis Analysis for Phytic Acid Concentration in Rice Grain by Using the Bayesian Model Selection

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¹Crop Breeding and Cultivation Research Institute, Shanghai Academy of Agricultural Sciences， Shanghai 201106, China; ²National Institute of Agricultural Biotechnology, Rural Development Administration, Suwon 441707， Korea; ³School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240, China； ^# These authors contributed equally to this paper; *Corresponding author， E-mail： zzpiao@163.com

Received date: 1900-01-01

Revised date: 1900-01-01

Online published: 2009-09-10

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Abstract

Main QTL and epistasis interaction effects for phytic acid concentration in rice grain were investigated by using a F2 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 F2 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%.

Key words： Key words: rice; phytic acid; quantitative trait locus; Bayesian model

Cite this article

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 . DOI: 10.3969/j.issn.10017216.2009.05.05

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