Title |
A Bayesian variable selection procedure to rank overlapping gene sets
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Published in |
BMC Bioinformatics, May 2012
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DOI | 10.1186/1471-2105-13-73 |
Pubmed ID | |
Authors |
Axel Skarman, Mohammad Shariati, Luc Jans, Li Jiang, Peter Sørensen |
Abstract |
Genome-wide expression profiling using microarrays or sequence-based technologies allows us to identify genes and genetic pathways whose expression patterns influence complex traits. Different methods to prioritize gene sets, such as the genes in a given molecular pathway, have been described. In many cases, these methods test one gene set at a time, and therefore do not consider overlaps among the pathways. Here, we present a Bayesian variable selection method to prioritize gene sets that overcomes this limitation by considering all gene sets simultaneously. We applied Bayesian variable selection to differential expression to prioritize the molecular and genetic pathways involved in the responses to Escherichia coli infection in Danish Holstein cows. |
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