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Figure 1 | Investigative Genetics

Figure 1

From: Contrasting signals of positive selection in genes involved in human skin-color variation from tests based on SNP scans and resequencing

Figure 1

Maximum parsimony networks (using the median-joining algorithm) inferred from sequence data of the genes (A) OCA2 , (B) DCT (C), KITLG and (D) TYRP1. Each circle represents a haplotype, and has an area proportional to the haplotype frequency in European (yellow), East Asian (dark green), African (purple) and South Asian (light green) populations. Branch lengths represent the number of mutations separating the haplotypes, with the shortest branches indicating one mutation. An asterisk denotes where the ancestral haplotype joins the network as derived from sequence data of chimpanzee, gorilla, and orangutan.

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