Genetic Identification of Quantitative Trait Loci for Contents of Mineral Nutrients in Rice Grain

查看全文 作　　者：Ana Luisa Garcia-[1,2,3]Oliveira

机构地区：[1]Department of Plant Genetics and Breeding and State Key Laboratory of Plant Physiology and Biochemistry,China Agricultural University;[2]National Centre for Evaluation of Agricultural Wild Plant Rice;[3]Beijing Key Laboratory of Crop Genetic Improvement and Genome of Ministry of Agriculture

出　　处：《Journal of Integrative Plant Biology》索引2009年第51卷第1期,共9页

基　　金：Supported by the Project of Conservation and Utilization of AgriculturalWild Plants of the Ministry of Agriculture of China;the National High-TechResearch and Development ('863') Program of China (2006AA100101);the National Natural Science Foundation of China (30771319). 摘　　要：In present study,Fe,Zn,Mn,Cu,Ca,Mg,P and K contents of 85 introgression lines(ILs) derived from a cross between an elite indica cultivar Teqing and the wild rice(Oryza rufipogon) were measured by inductively coupled argon plasma(ICAP) spectrometry.Substantial variation was observed for all traits and most of the mineral elements were significantly positive correlated or independent except for Fe with Cu.A total of 31 putative quantitative trait loci(QTLs) were detected for these eight mineral elements by single point analysis.Wild rice(O.rufipogon) contributed favorable alleles for most of the QTLs(26 QTLs),and chromosomes 1,9 and 12 exhibited 14 QTLs(45%) for these traits.One major effect of QTL for zinc content accounted for the largest proportion of phenotypic variation(11%-19%) was detected near the simple sequence repeats marker RM152 on chromosome 8.The co-locations of QTLs for some mineral elements observed in this mapping population suggested the relationship was at a molecular level among these traits and could be helpful for simultaneous improvement of these traits in rice grain by marker assisted selection. 关键词：基因导入系红壤旱地春大豆品种单子叶植物纲禾本科稻属

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Genetic Identification of Quantitative Trait Loci for Contents of Mineral Nutrients in Rice Grain

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