MNEc670k SNP information. Contains information on MNEc670k SNPs. Includes Affymetrix probe ID, genetic coordinates, MNEc Identifier, tissue origin indicating high quality genotyping in either hair root or blood, Affymetrix assigned genotyping cluster resolution, and inclusion criteria: Intra – SNP tags intra-breed haplotype, Inter – SNP tags inter-breed haplotype, MHC – SNP within Equine Major Histocompatibility Complex region, Diverse – SNP tags haplotype in 3 or more of diverse breeds that need many tagging SNPs (Quarter Horse, Pony, Morgan, Standardbred; See Additional file 4: Table S4), Density – SNP included to target at least 8 SNPs per 50 kb genomic window (targeting uniform genomic coverage). (XLSX 32510 kb)