Fig_S16.pdf

Histogram of codon usage in all genes of genomes that present or lack genes involved in s2U formation. Top left graph: histogram of the usage of the indicated codon in highly expressed genes of proteobacterial genomes. Top right graph: box plot indicating the distribution of codon usage in the same population. Lower graphs: The collection of 1484 proteobacterial genomes were separated in two groups, based on the presence (light blue) or absence (orange) of the indicated pattern in any gene of the analyzed genomes. See table S4 for a detailed description of the used patterns. Left: Data is represented in superposed histograms. Right: Data is represented in a boxplot. An horizontal bar was added when the two populations are different based on Wilcoxon-Mann-Whitney test and p < 0.00005. Whiskers include 95% of data.