| 玉米产量性状“一致性QTL”分析 |
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| 引用本文： | 王晓丽,翁建峰,吕香玲,王振华,李新海.玉米产量性状“一致性QTL”分析[J].分子植物育种,2011(5):579-584. |
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| 作者姓名： | 王晓丽 翁建峰 吕香玲 王振华 李新海 |
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| 作者单位： | 东北农业大学农学院;中国农业科学院作物科学研究所农作物基因资源与基因改良国家重大科学工程;沈阳农业大学农学院 |
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| 基金项目： | 国际科技合作项目(2007DFA31010);国家重点基础研究发展计划项目(2011CB100100)共同资助 |
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| 摘 要： | 在构建含221个玉米产量性状QTL整合图谱的基础上,采用元分析方法,当LOD值≥4.0时,在第2染色体上确定了1个控制粒重和穗数的“一致性QTL”,介于标记Sdg107和Isu2117b之间,间距30.99 cM;同样,在第3和第4染色体上发掘了2个控制穗数和粒重的“一致性QTL”,分别由标记ucsd72d和IDP37...
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| 关 键 词： | 玉米产量性状 数量性状位点 元分析 一致性QTL 位置候选基因 |
Consensus QTL Analysis for Grain Yield and Its Components in Maize Based on Bioinformatics |
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| Wang Xiaoli,Weng Jianfeng,Lv Xiangling,Wang Zhenhua, Li Xinhai.Consensus QTL Analysis for Grain Yield and Its Components in Maize Based on Bioinformatics[J].Molecular Plant Breeding,2011(5):579-584. |
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| Authors: | Wang Xiaoli Weng Jianfeng Lv Xiangling Wang Zhenhua Li Xinhai |
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| Institution: | 1 College of Agronomy, Northeast Agricultural University, Harbin, 150030; 2 Institute of Crop Science, Chinese Academy of Agricultural Sciences, National Key Facilities for Crop Genetic Resources and Improvement, Beijing, 100081; 3 College of Agronomy, Shenyang Agricultural University, Shenyang, 110161 |
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| Abstract: | Based on the integration map of 221 QTL for grain yield and its components of maize constructed by BioMercator 2.1 software using Genetic Map IBM2 2005 Neighbors as reference, one consensus QTL conferring ear number and kernel weight was identified on chromosome 2 using meta-analysis method with LOD score value of 4.0, which was located between the markers Sdg107and Isu2117b with map interval of 30.99 cM; Meanwhile, two consensus QTLs conferring ear number and kernel weight were identified on chromosome 3 and 4, located between the markers ucsd72d and IDP3796, ufg23 and mdr1, with map interval of 12.64 cM and 69.74 cM, respectively; Also, one consensus QTL conferring ear number, kernel weight and grain yield was detected on chromosome 9 positioned between the markers TB-9Sb(9) and gpm682 with map interval of 40.8 cM. The gene and marker sequences within the consensus QTL on chromosomes 2 and 3 were downloaded respectively from website MaizeGDB, and 4 positional candidate genes were detected by comparing these sequences against other genes by software BLASTx in NCBI website. The results provided useful information for identifying QTL conferring grain yield and its candidate genes in maize. |
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| Keywords: | Maize yield and its components Quantitative trait locus Meta-analysis Consensus QTL Position candidate genes |
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