Figure 3.

Emergence and evolution of molecular functions along the timeline. The cumulative frequency distribution plot illustrates the accumulation of FFs associated with the seven major functional categories of SUPERFAMILY. Dotted lines indicate the first appearance of FFs associated with one of the 49 minor functional categories.

Kim and Caetano-Anoll├ęs BMC Evolutionary Biology 2012 12:13   doi:10.1186/1471-2148-12-13
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