Column headings for VCF Table CHROM Chromosome number in domestic sheep reference; POS Basepair position in the domestic sheep reference REF Allele call in domestic sheep referecnce ALT Alternate allele(s) observed in bighorn sheep QUAL Quality score of the SNP NS Number of samples typed AN Number of alleles in bighorn sheep DP Depth of the tag Columns I-P Genotypes for individual sheep; first four columns are NBR sheep, second four are RM sheep Sequence SNP and flanking sequence