Figure 3.

Segmental duplication divergence in ANC and CNC sequences. The figure shows that the divergence of paralogs in segmental duplications (SDs) where conserved noncoding (CNC) sequences (red) and power CNC sequences (purple) are found is skewed to high divergence values, whereas the accelerated noncoding (ANC) sequences (yellow) have a strong enrichment in recent segmental duplications, as expected if the acceleration is due to a recent change in selective forces (positive selection or loss of selective constraint).