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QTL mapping for ear length and ear diameter under different nitrogen regimes in maize

文献类型： 外文期刊

作者： Zhang, Hongmei 1 ; Zheng, Zuping 2 ; Liu, Xiaohong 3 ; Li, Zhong 2 ; He, Chuan 2 ; Liu, Daihui 2 ; Luo, Yangchun 2 ; Zhan 1 ;

作者机构： 1.Shanxi Agr Univ, Taigu 030800, Peoples R China

2.Nanchong Inst Agr Sci, Nanchong 637000, Peoples R China

3.China W Normal Univ, Coll Life Sci, Nanchong 637009, Peoples R China

4.Shanxi Acad Agr Sci, Maize Res Inst, Xinzhou 034000, Peoples R China

关键词： Maize (Zea mays L.);ear length;ear diameter;quantitative trait locus;recombinant inbred line;nitrogen

期刊名称：AFRICAN JOURNAL OF AGRICULTURAL RESEARCH （ 影响因子：0.263； 五年影响因子：0.203 ）

ISSN： 1991-637X

年卷期： 2010 年 5 卷 8 期

页码：

收录情况： SCI

摘要： Ear length (EL) and ear diameter (ED) are two of the most important traits in maize (Zea mays L.), related to yield and plant morphology. In this study, an F(9) recombinant inbred line (RIL) population was used to identify the quantitative trait loci (QTLs) controlling EL and ED under two nitrogen (N) regimes. As a result, 3 QTLs were detected under N rich environment, 1 for EL on chromosome 1 and 2 for ED on chromosome 9. Under N stress environment, 4 QTLs were identified, 1 for EL on chromosome 1 and 3 for ED on chromosome 4 and 9. The phenotypic variances explained by these QTLs ranged from 5.68% to 9.86%, their additive effects were from -0.74 to 0.16. These results were beneficial for realizing the genetic basis of EL and ED and carrying out marker-assisted selection in maize.

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[1]Quantitative trait locus analysis for ear height in maize based on a recombinant inbred line population. Zhang, H. M.,Wu, X. P.,Liu, X. H.,Sun, Y.,Li, Z. Q.,Zhang, H. M.,Wu, X. P.,Sun, Y.,Li, Z. Q.. 2014

[2]Quantitative trait locus analysis for kernel width using maize recombinant inbred lines. Hui, G. Q.,Yang, H. P.,Luo, Q.,Zhang, H. M.,Wen, G. Q.,Liu, X. H.,Song, H. X.,Wen, L.,Sun, Y.,Zhang, H. M.. 2015

[3]Descriptive statistics and correlation analysis of agronomic traits in a maize recombinant inbred line population. Zhang, H. M.,Hui, G. Q.,Luo, Q.,Liu, X. H.,Sun, Y.,Zhang, H. M.,Hui, G. Q.,Luo, Q.,Sun, Y.. 2014

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[5]Influence of the system of rice intensification on rice yield and nitrogen and water use efficiency with different N application rates. Zhao, Limei,Wu, Lianghuan,Lu, Xinghua,Zhao, Limei,Li, Yongshan,Zhu, Defeng,Uphoff, Norman.

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