Figure 1

A translocation involving the European ssa01 p-arm and ssa23 to create a metacentric chromosome in North American salmon (ssa01p/23). The European ssa01 (red) and ssa23 (green) are shown to the right and the new acrocentric chromosome in North American salmon to the left. Numbers correspond to SNPs listed in Additional file 1. SNPs in colors are shared between Atlantic salmon from both sides of the Atlantic Ocean. Red lines extend to the set of SNPs with limited recombination in the male map.