Normalised LD was assessed across all eleven chromosomes. The position of each SNP used in this analysis is illustrated. The black triangle illustrates the single linkage group identified in the analysis, which spans the entire genome. Numbers 1–11 represent the 11 chromosomes. Red (D'>1, LOD≥2), Pink (D'<1, LOD≥2), Blue (D'=1, LOD<2) and White (D'<1, LOD<2).