Fig. 4
From: Imputation of genotypes in Danish purebred and two-way crossbred pigs using low-density panels
Density curves of genomic relationships between reference and validation populations for different imputation scenarios.(a) within-breed scenario for purebred Landrace and Yorkshire; (b) imputation of purebreds by using a combined Landrace and Yorkshire population; (c) the external-breed scenario for purebred Landrace (LLbyYY) and Yorkshire (YYbyLL) and (d) imputation of crossbreds by using either one purebred reference population (LYbyYY and LYbyLL) or a combined Landrace and Yorkshire population (LYbyLL + YY). All scenarios were under the imputation strategy of ‘5 K to 8 K’