Differential analysis of high-throughput quantitative genetic interaction data

Gordon J Bean and Trey Ideker

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Genome Biology 2012, 13:R123 doi:10.1186/gb-2012-13-12-r123
Published: 26 December 2012

Abstract (provisional)

Synthetic genetic arrays (SGA) have been very effective at measuring genetic interactions in yeast in a high throughput manner and recently have been expanded to measure quantitative changes in interaction, termed 'differential interactions', across multiple conditions. Here, we present a strategy that leverages statistical information from the experimental design to produce a novel, quantitative differential interaction score, which performs favorably compared to previous differential scores. We also discuss the added utility of differential genetic-similarity in differential network analysis. Our approach is preferred for differential network analysis, and our implementation, written in MATLAB, can be found at http://chianti.ucsd.edu/~gbean/compute_differential_scores.m.