Figure 6.

Protein families (A) and protein domains (B) exhibiting duplication and/or deletion at the last common ancestor (LCA) of metazoans and at the LCA of vertebrates (bold). The numbers of protein families and domains without any duplication or deletions are at the upper left corner.

Wang et al. BMC Evolutionary Biology 2012 12:138   doi:10.1186/1471-2148-12-138
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