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作物学报 ›› 2016, Vol. 42 ›› Issue (07): 945-956.doi: 10.3724/SP.J.1006.2016.00945

• 综述 •    下一篇

植物关联分析方法的研究进展

冯建英1,温阳俊1,张瑾1,章元明2,*   

  1. 1 南京农业大学作物遗传与种质创新国家重点实验室, 江苏南京210095; 2华中农业大学植物科技学院, 湖北武汉430070
  • 收稿日期:2015-07-08 修回日期:2016-05-09 出版日期:2016-07-12 网络出版日期:2016-05-11
  • 通讯作者: 章元明, E-mail: soyzhang@mail.hzau.edu.cn; Tel: 13505161564
  • 基金资助:

    本研究由国家自然科学基金项目(31301004)和中央高校基本科研业务费项目(KJQN201422)资助。

Advances on Methodologies for Genome-wide Association Studies in Plants

FENG Jian-Ying1,WEN Yang-Jun1,ZHANG Jin1,ZHANG Yuan-Ming2,*   

  1. 1 State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; 2 College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China?
  • Received:2015-07-08 Revised:2016-05-09 Published:2016-07-12 Published online:2016-05-11
  • Contact: 章元明, E-mail: soyzhang@mail.hzau.edu.cn; Tel: 13505161564
  • Supported by:

    This work was supported by National Natural Science Foundation of China (31301004) and Fundamental Research Funds for the Central Universities (KJQN201422).

摘要:

关联分析在人类和动植物遗传研究中的应用日益广泛,新方法及其软件包不断涌现。为对其更好选择和应用,本文综述了关联分析的主要方法及其软件包。首先,介绍了群体结构对关联分析的影响;其次,重点介绍了单位点关联分析、多位点关联分析、上位性和多性状关联分析方法及其软件包;最后,展望了关联分析的发展动向。应当指出,基于群体结构和多基因整体背景控制的全基因组单标记快速扫描算法在目前的实际资料分析中应用较广泛,与其结果互补的是假阳性率较高的非参数方法。但是,今后的方法应当是以多位点模型、环境互作、上位性检验和多个相关性状联合分析为主。这为今后的理论与应用研究提供了有益信息。

关键词: 全基因组关联分析, 上位性, 混合线性模型, 多位点模型

Abstract:

Genome-wide association studies (GWAS) have been widely used in human, animal and plant genetics, and many new approaches and their softwares have been developed in recent years. To make a better use of the GWAS methods in applied research, in this study we summarized the advances on methodologies and softwares for GWAS. First, LD score regression was introduced to investigate the effect of population structure on GWAS. Then, the main approaches and their softwares for GWAS in plants were reviewed, including a single-locus model, a multi-locus model, epistasis, and multiple correlated traits. Finally, we prospected the future developments in GWAS. It should be noted that, in real data analysis at present, the methodologies for genome-wide single-marker scan under polygenic background and population structure controls are widely used, and the corresponding results are complementary to those derived from non-parameter approaches with high false discovery rate. However, the future approaches for GWAS should be based on the multi-locus genetic model, QTN-by-environment interaction, epistatic detection and multivariate analysis. Our purpose was to provide beneficial information in theoretical and applied researches.

Key words: Genome-wide association study, Epistasis, mixed linear model, multi-locus model

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