Table S1 Source sequences, location of genes on human cytogenetic map, primers, annealing temperatures (Ta) and amplicon sizes of PCR products used for RH and linkage mapping and restriction enzymes used for SNP typing. Table S2 SNP allele frequencies for RPS4X, XIST, POU3F4, ACSL4, CAPN6, PAK3 and HTR2C in eight pig breeds. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.