Gene Set Analyses of Genome-Wide Association Studies on 49 Quantitative Traits Measured in a Single Genetic Epidemiology Dataset

Gene set analysis is a powerful tool for interpreting a genome-wide association study result and is gaining popularity these days. Comparison of the gene sets obtained for a variety of traits measured from a single genetic epidemiology dataset may give insights into the biological mechanisms underly...

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Main Authors: Jihye Kim, Ji-sun Kwon, Sangsoo Kim
Format: Article
Language:English
Published: Korea Genome Organization 2013-09-01
Series:Genomics & Informatics
Subjects:
Online Access:http://genominfo.org/upload/pdf/gni-11-135.pdf
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author Jihye Kim
Ji-sun Kwon
Sangsoo Kim
author_facet Jihye Kim
Ji-sun Kwon
Sangsoo Kim
author_sort Jihye Kim
collection DOAJ
description Gene set analysis is a powerful tool for interpreting a genome-wide association study result and is gaining popularity these days. Comparison of the gene sets obtained for a variety of traits measured from a single genetic epidemiology dataset may give insights into the biological mechanisms underlying these traits. Based on the previously published single nucleotide polymorphism (SNP) genotype data on 8,842 individuals enrolled in the Korea Association Resource project, we performed a series of systematic genome-wide association analyses for 49 quantitative traits of basic epidemiological, anthropometric, or blood chemistry parameters. Each analysis result was subjected to subsequent gene set analyses based on Gene Ontology (GO) terms using gene set analysis software, GSA-SNP, identifying a set of GO terms significantly associated to each trait (pcorr < 0.05). Pairwise comparison of the traits in terms of the semantic similarity in their GO sets revealed surprising cases where phenotypically uncorrelated traits showed high similarity in terms of biological pathways. For example, the pH level was related to 7 other traits that showed low phenotypic correlations with it. A literature survey implies that these traits may be regulated partly by common pathways that involve neuronal or nerve systems.
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spelling doaj.art-199d89e9ae1b4a95952fec1534c694e62022-12-22T00:15:58ZengKorea Genome OrganizationGenomics & Informatics1598-866X2234-07422013-09-0111313514110.5808/GI.2013.11.3.13548Gene Set Analyses of Genome-Wide Association Studies on 49 Quantitative Traits Measured in a Single Genetic Epidemiology DatasetJihye Kim0Ji-sun Kwon1Sangsoo Kim2Department of Bioinformatics and Life Science, Soongsil University, Seoul 156-743, Korea.Department of Bioinformatics and Life Science, Soongsil University, Seoul 156-743, Korea.Department of Bioinformatics and Life Science, Soongsil University, Seoul 156-743, Korea.Gene set analysis is a powerful tool for interpreting a genome-wide association study result and is gaining popularity these days. Comparison of the gene sets obtained for a variety of traits measured from a single genetic epidemiology dataset may give insights into the biological mechanisms underlying these traits. Based on the previously published single nucleotide polymorphism (SNP) genotype data on 8,842 individuals enrolled in the Korea Association Resource project, we performed a series of systematic genome-wide association analyses for 49 quantitative traits of basic epidemiological, anthropometric, or blood chemistry parameters. Each analysis result was subjected to subsequent gene set analyses based on Gene Ontology (GO) terms using gene set analysis software, GSA-SNP, identifying a set of GO terms significantly associated to each trait (pcorr < 0.05). Pairwise comparison of the traits in terms of the semantic similarity in their GO sets revealed surprising cases where phenotypically uncorrelated traits showed high similarity in terms of biological pathways. For example, the pH level was related to 7 other traits that showed low phenotypic correlations with it. A literature survey implies that these traits may be regulated partly by common pathways that involve neuronal or nerve systems.http://genominfo.org/upload/pdf/gni-11-135.pdfGene Ontologygene set analysisgenome-wide association studyquantitative traitssemantic similarity
spellingShingle Jihye Kim
Ji-sun Kwon
Sangsoo Kim
Gene Set Analyses of Genome-Wide Association Studies on 49 Quantitative Traits Measured in a Single Genetic Epidemiology Dataset
Genomics & Informatics
Gene Ontology
gene set analysis
genome-wide association study
quantitative traits
semantic similarity
title Gene Set Analyses of Genome-Wide Association Studies on 49 Quantitative Traits Measured in a Single Genetic Epidemiology Dataset
title_full Gene Set Analyses of Genome-Wide Association Studies on 49 Quantitative Traits Measured in a Single Genetic Epidemiology Dataset
title_fullStr Gene Set Analyses of Genome-Wide Association Studies on 49 Quantitative Traits Measured in a Single Genetic Epidemiology Dataset
title_full_unstemmed Gene Set Analyses of Genome-Wide Association Studies on 49 Quantitative Traits Measured in a Single Genetic Epidemiology Dataset
title_short Gene Set Analyses of Genome-Wide Association Studies on 49 Quantitative Traits Measured in a Single Genetic Epidemiology Dataset
title_sort gene set analyses of genome wide association studies on 49 quantitative traits measured in a single genetic epidemiology dataset
topic Gene Ontology
gene set analysis
genome-wide association study
quantitative traits
semantic similarity
url http://genominfo.org/upload/pdf/gni-11-135.pdf
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