Multiple testing on the directed acyclic graph of gene ontology

Bioinformatics
Jelle J Goeman, Ulrich Mansmann

Abstract

Current methods for multiplicity adjustment do not make use of the graph structure of Gene Ontology (GO) when testing for association of expression profiles of GO terms with a response variable. We propose a multiple testing method, called the focus level procedure, that preserves the graph structure of Gene Ontology (GO). The procedure is constructed as a combination of a Closed Testing procedure with Holm's method. It requires a user to choose a 'focus level' in the GO graph, which reflects the level of specificity of terms in which the user is most interested. This choice also determines the level in the GO graph at which the procedure has most power. We prove that the procedure strongly controls the family-wise error rate without any additional assumptions on the joint distribution of the test statistics used. We also present an algorithm to calculate multiplicity-adjusted P-values. Because the focus level procedure preserves the structure of the GO graph, it does not generally preserve the ordering of the raw P-values in the adjusted P-values. The focus level procedure has been implemented in the globaltest and GlobalAncova packages, both of which are available on www.bioconductor.org.

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Citations

Dec 25, 2010·Briefings in Bioinformatics·Rob JelierPeter A C 't Hoen
Mar 4, 2009·Bioinformatics·Chen-An Tsai, James J Chen
Feb 2, 2012·BMC Bioinformatics·Gabriele SalesChiara Romualdi
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Feb 11, 2014·BMC Bioinformatics·Heather C WickDonna K Slonim
Aug 1, 2014·BMC Genetics·Guifang FuJohn Stevens
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Nov 5, 2014·BMC Bioinformatics·Garrett SaundersS Clay Isom
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Dec 14, 2011·Genetic Epidemiology·Daniel J SchaidRichard M Weinshilboum
Jan 9, 2014·Statistics in Medicine·Jelle J Goeman, Aldo Solari
Oct 9, 2015·Briefings in Bioinformatics·Rosa J Meijer, Jelle J Goeman
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Nov 14, 2014·Biometrical Journal. Biometrische Zeitschrift·Rosa J Meijer, Jelle J Goeman
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Mar 13, 2012·Journal of Chemical Information and Modeling·Zhiwei FengYouyong Li
Jul 13, 2019·Briefings in Bioinformatics·Mitra EbrahimpoorJelle Goeman
Nov 20, 2016·Wiley Interdisciplinary Reviews. Systems Biology and Medicine·Christos M Dimitrakopoulos, Niko Beerenwinkel
Jan 1, 2008·Bioinformatics and Biology Insights·Manuela HummelUlrich Mansmann
Mar 30, 2019·Statistics in Medicine·Tao FengWendy J Mack

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