The predicted extent of the transfer of genes encoding metabolic enzymes. The bar chart shows the total number of enzymes that were identified as being present (high-confidence; see text) in each organism group. The numbers of enzymes whose genes were predicted as originating from EGT and HGT are indicated with green and blue, respectively.
Whitaker et al. Genome Biology 2009 10:R36 doi:10.1186/gb-2009-10-4-r36