Two files are available:
Whole genome sequence, SNP chips and pedigree structure: Building demographic profiles in domestic dog breeds to optimize genetic trait mapping
Genomic Analyses Reveal the Inﬂuence of Geographic Origin, Migration, and Hybridization on Modern Dog Breed Development
"The domestic dog is divided into hundreds of island-like populations called breeds. Parker et al. examine 161 breeds and show that they were developed through division and admixture. The analyses define clades, estimate admixture dates, distinguish geographically diverse populations, and help determine the source of shared mutations among diverse populations."
"By combining genetic distance relationships with patterns of haplotype sharing, we can now elucidate the complex makeup of modern dogs breeds and guide the search for genetic variants important to canine breed development, morphology, behavior, and disease."