Serial Analysis of Gene Expression (SAGE) is a powerful tool to analyze whole-genome expression profiles. SAGE data, characterized by large quantity and high dimensions, need reducing their dimensions and extract feat...Serial Analysis of Gene Expression (SAGE) is a powerful tool to analyze whole-genome expression profiles. SAGE data, characterized by large quantity and high dimensions, need reducing their dimensions and extract feature to improve the accuracy and efficiency when they are used for pattern recognition and clustering analysis. A Poisson Model-based Kernel (PMK) was proposed based on the Poisson distribution of the SAGE data. Kernel Principle Component Analysis (KPCA) with PMK was proposed and used in feature-extract analysis of mouse retinal SAGE data. The computa-tional results show that this algorithm can extract feature effectively and reduce dimensions of SAGE data.展开更多
基因表达系列分析(Serial analysis of gene expression,SAGE)是一种研究真核细胞表达基因信息的高通量检测技术,它能对细胞内所有表达基因进行定性与定量分析。SAGE技术在植物方面的应用相对较少,但在植物抗病性研究中的应用近几年发...基因表达系列分析(Serial analysis of gene expression,SAGE)是一种研究真核细胞表达基因信息的高通量检测技术,它能对细胞内所有表达基因进行定性与定量分析。SAGE技术在植物方面的应用相对较少,但在植物抗病性研究中的应用近几年发展很快。综述介绍了SAGE技术的原理与操作、实施的方法与步骤、SAGE技术的主要优点及在植物基因表达分析中的应用。明确SAGE的优势与它的缺陷,在实际应用中加以完善及采取必要的辅助方案,这样就可以构建较完美的设计思想。展开更多
基金Supported by the National Natural Science Foundation of China (No. 50877004)
文摘Serial Analysis of Gene Expression (SAGE) is a powerful tool to analyze whole-genome expression profiles. SAGE data, characterized by large quantity and high dimensions, need reducing their dimensions and extract feature to improve the accuracy and efficiency when they are used for pattern recognition and clustering analysis. A Poisson Model-based Kernel (PMK) was proposed based on the Poisson distribution of the SAGE data. Kernel Principle Component Analysis (KPCA) with PMK was proposed and used in feature-extract analysis of mouse retinal SAGE data. The computa-tional results show that this algorithm can extract feature effectively and reduce dimensions of SAGE data.
文摘基因表达系列分析(Serial analysis of gene expression,SAGE)是一种研究真核细胞表达基因信息的高通量检测技术,它能对细胞内所有表达基因进行定性与定量分析。SAGE技术在植物方面的应用相对较少,但在植物抗病性研究中的应用近几年发展很快。综述介绍了SAGE技术的原理与操作、实施的方法与步骤、SAGE技术的主要优点及在植物基因表达分析中的应用。明确SAGE的优势与它的缺陷,在实际应用中加以完善及采取必要的辅助方案,这样就可以构建较完美的设计思想。