Figure 3
From: An evolutionary history of the selectin gene cluster in humans

Haplotype analysis for SELPex11–13. (a) GENETREE: mutations are represented as black dots. The absolute frequency of each haplotype is reported. (b) Median joining network: each node represents a different haplotype, with the size of the circle proportional to frequency. Branch lengths are proportional to the number of nucleotide differences. Circles are color-coded according to population (yellow: AA, blue: CEU, red: AS). The most recent common ancestor (MRCA) is also shown (black circle). Nonsynonymous substitutions are shown in red and indicated by the arrows.