Modularity quantification in sub-networks extracted from the <i>Salmonella</i> genome scale network containing those genes differentially expressed during and after the heat treatment and comparison with random extracted sub-networks with the same number of genes.

1<p>Modularity coefficient from 0 to 1 (maximum modularity).</p>2<p>Mean value and standard deviation of the modularity coefficient of 10 random networks.</p>*<p>Significant: Smaller than the mean value minus 3 times the standard deviation of random networks.