Figure 5From: Towards the identification of essential genes using targeted genome sequencing and comparative analysisPhyletic distribution of the smallest and largest essential genes in S. cerevisiae and E. coli. Displays the number of essential genes (blue) superimposed on the total number of genes (gray), binned by number of organisms in which the gene is present (phyletic retention) for (A) the 300 smallest proteins in E. coli, (B) the 300 largest proteins in E. coli, (C) the 300 smallest proteins in S. cerevisiae and (D) the 300 largest proteins in S. cerevisiae.Back to article page