Dataset Information

Meta-eQTL: a tool set for flexible eQTL meta-analysis.

ABSTRACT: Increasing number of eQTL (Expression Quantitative Trait Loci) datasets facilitate genetics and systems biology research. Meta-analysis tools are in need to jointly analyze datasets of same or similar issue types to improve statistical power especially in trans-eQTL mapping. Meta-analysis framework is also necessary for ChrX eQTL discovery.We developed a novel tool, meta-eqtl, for fast eQTL meta-analysis of arbitrary sample size and arbitrary number of datasets. Further, this tool accommodates versatile modeling, eg. non-parametric model and mixed effect models. In addition, meta-eqtl readily handles calculation of chrX eQTLs.We demonstrated and validated meta-eqtl as fast and comprehensive tool to meta-analyze multiple datasets and ChrX eQTL discovery. Meta-eqtl is a set of command line utilities written in R, with some computationally intensive parts written in C. The software runs on Linux platforms and is designed to intelligently adapt to high performance computing (HPC) cluster. We applied the novel tool to liver and adipose tissue data, and revealed eSNPs underlying diabetes GWAS loci.

SUBMITTER: Di Narzo AF

PROVIDER: S-EPMC4262975 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature

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Meta-eQTL: a tool set for flexible eQTL meta-analysis.

Di Narzo Antonio Fabio AF Cheng Haoxiang H Lu Jianwei J Hao Ke K

BMC bioinformatics 20141128

<h4>Background</h4>Increasing number of eQTL (Expression Quantitative Trait Loci) datasets facilitate genetics and systems biology research. Meta-analysis tools are in need to jointly analyze datasets of same or similar issue types to improve statistical power especially in trans-eQTL mapping. Meta-analysis framework is also necessary for ChrX eQTL discovery.<h4>Results</h4>We developed a novel tool, meta-eqtl, for fast eQTL meta-analysis of arbitrary sample size and arbitrary number of datasets ...[more]

PMID: 25431350

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Dataset Information

Meta-eQTL: a tool set for flexible eQTL meta-analysis.

Publications

Meta-eQTL: a tool set for flexible eQTL meta-analysis.

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