CNV breed profiles. a) Stacked bar chart showing the percentage of CNVs (total, unique, specific, gain and loss CNVs), CNVRs and number of genes affected for each breed studied with respect to each sample size. The number of samples for each breed is shown in parenthesis. b) Heatmap showing the CNV distribution in the 29 autosomal chromosomes. Dark red tiles represent low frequency CNVs, while pale yellow/white indicate high frequency CNVs.