Files contain in archive Gallus_genotypes.zip contain genotype data from Pengelly et al, 2016. 'Commercial chicken breeds exhibit highly divergent patterns of linkage disequilibrium'. The three breed types are in separate file: WEL - white egg layers, BEL - brown egg layers, BRO - broilers. Genotypes have been QCed, providing SNPs with an allele frequency > 5%, HWE p > 0.001, and having 95% genotyping rate accross the breed. Genotype data are provided in the PLINK format, see http://pngu.mgh.harvard.edu/~purcell/plink/index.shtml for further details including file format specifications.