Distribution of orthologous genes based on COG category in each Sinorhizobium species. The percentages of orthologous genes assigned by COG category in the core genome (black bars) and the accessory genome (white bars) are shown. Only orthologous genes assigned by COGnitor were used for analysis.
Sugawara et al. Genome Biology 2013 14:R17 doi:10.1186/gb-2013-14-2-r17