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Figure 1 | BMC Evolutionary Biology

Figure 1

From: Evolutionary constraints permeate large metabolic networks

Figure 1

Metabolic networks can show very different composition that depends on their evolutionary distance. The figure shows a histogram of the fraction D of reactions (represented by KEGG orthologs; [36]) that occur in only one network of a pair of metabolic networks. The histogram is based on all networks that occur in 222 prokaryotes with completely sequenced genomes. Horizontal bars indicate mean (center of bar) and one standard deviation (length of bar) of D for organisms that live in the habitat-type indicated above each bar (see Methods for details).

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