Fig. 1

Genetic diversity of West African founder colonies. a Allele frequencies for microsatellite marker H603. The wild population segregates 22 alleles, while each founder colony segregates a distinct subset of six alleles. Only one wild allele is shared among all three founder colony. Sample sizes (n) are indicated as numbers of alleles tested. b Neighbor-joining trees based on pairwise Fst values indicate that the colonies have captured distinct subsets of variation from the source wild population. All branches are significantly greater than 0