Location of the detected CNVRs on the porcine chromosome ideograms. The size of each ideogram is proportional to that of the chromosomes. The sex chromosomes were excluded from the analysis and no CNVR was detected on chromosome 4, 5, 7 and 15. The brown bars in the middle of each chromosome represent the positions of CNVRs. The purple columns in the left are the positions of QTLs and RefSeq genes are marked by red bars on the right side of the ideograms.