Summary of the regions.

The regions are named as chromosome_region (regions numbered from 1 to n at each chromosome). Begin position of the region in bp (Begin); size of the region in Mb (Size); number of polymorphic SNP markers in each population (nsnp); first quartile, mean, and third quartile of the minor allele frequency in each population (MAF); first quartile, mean, and third quartile of the linkage disequilibrium between adjacent polymorphic markers in each population measured as . Position and size of the region were calculated from build 9 of the pig genome.