Figure 4.

Haplotype coancestry matrix inferred for North Atlantic Buccinum undatum populations. Each pixel within the heatmap represents the inferred coancestry coefficient for a given individual based on haplotype loci. Colored bars adjacent to the heatmap represent individuals' country of origin, including England (green), the Faroe Islands (blue), Iceland (purple), and Canada (red). Within the heatmap, individuals with the highest shared coancestry are depicted in darker colors, while lesser values of coancestry are depicted in brighter shades. Bootstrap support is listed for each branch divergence for the inferred phylogeny