Figure 3.

The LWS allele frequency across the four generations (BC1–IC1) bred when generating the three-locus chicken introgression line. Dotted lines show the backcross generations and the solid line IC1. Panes (A–C) give the allele frequency at each marker in the introgressed regions on chromosome 3, 4, and 7, respectively. The scored markers in each segment are provided on the x-axis and are named according to the system “Chromosome”_”Position on chromosome in Mbp.”