Figure 6
(a) Unrooted haplotype network based on the sequencing of 468-base pairs within the mtDNA control region (d-loop) showing the geographic distribution of haplotypes produced using TCS (Clement et al., 2000). Each circle represents a unique haplotype and lines separating haplotypes represent mutational steps. Small black nodes between haplotypes suggest missing haplotypes. The numbers on the lines between haplotypes indicate the base pair position for the difference. The size of the circle indicates the number of individuals with that haplotype and colours correspond to the sample codes shown in Table 1. (b) The proportion of each haplotype shown per morphotype in GBL (GRP 1, GRP 2, GRP 3 and GRP 4) and within other sampling locations (see Table 1). Coloured bars under sample codes correspond to samples from GBL (black), and putative Mississippian (blue), Northern Beringian (red) and Southern Beringian (Nahanni) (green) glacial refugia origins.
