Fig. 4
From: Genomic evidence for human-mediated introgressive hybridization and selection in the developed breed
Distribution of regions in the genome where Beijing Black pig contains introgressed haplotypes from Yorkshire. (a) X-axis represents 18 autosomes, and the y-axis represents the relative frequency of Beijng Black pig haplotypes IBD with Shenxian pig or Yorkshire, ranging from − 1 to 1. The dotted line represents the threshold for extreme IBD with Yorkshire compared with Shenxian pig. (b) Distribution of the relative proportion of IBD haplotypes in Beijing Black pig and Shenxian pig (red, -1 to 0) or Yorkshire (blue, 0 to 1) in bins of 10,000 bp. (c) Distribution of the rIBD scores for Beijing Black pig haplotypes. (d) Z-transformed distribution of rIBD. The red line represents the threshold for extreme IBD with Yorkshire compared with Shenxian pig