Analysis of polygenic selection in purebred and crossbred pig genomes using generation proxy selection mapping

Table 8 Genetic correlations for AGE (difference, in months, between each pig’s birth date and January 2006) between each pairwise combination of populations 1 through 3 using simulated genotype data

Subgroup	Genetic lines	Pigs, n	SNPs, n	r_G	SE
5	Duroc and Landrace (Method 1)²	32,066	46,008	-0.03	0.028
5	Duroc and Landrace (Method 2)	32,066	46,008	-0.02	0.058
6	Duroc and Yorkshire (Method 1)	32,387	46,098	0.06	0.029
6	Duroc and Yorkshire (Method 2)	32,387	46,098	0.03	0.057
8	Landrace and Yorkshire (Method 1)	31,240	46,260	-0.02	0.028
8	Landrace and Yorkshire (Method 2)	31,240	46,260	-0.01	0.056

r_G = genetic correlation; SE = standard error; n = number
Method 1 = genotypes simulated as if populations recently diverged (same founder population); Method 2 = genotypes simulated as if populations diverged several years ago (different founder populations)

ISSN: 1297-9686