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

Table 5 Proportion of variation in AGE (difference, in months, between each pig’s birth date and January 2006) explained by SNPs for each subset

Subset	Populations	Pigs, n	SNPs, n	PVE	SE
1	Duroc	16,595	38,294	0.94	0.002
2	Landrace	15,457	45,085	0.87	0.004
3	Yorkshire	15,772	45,027	0.86	0.004
4	Crossbred	8447	46,529	0.94	0.004
5	Duroc and Landrace	32,066	45,999	0.89	0.001
6	Duroc and Yorkshire	32,387	46,106	0.84	0.001
7	Duroc and crossbred	25,053	46,341	0.91	0.002
8	Landrace and Yorkshire	31,240	46,253	0.89	0.002
9	Landrace and crossbred	23,905	46,440	0.88	0.003
10	Yorkshire and crossbred	24,230	46,449	0.87	0.003
11	Duroc, Landrace and Yorkshire	47,849	46,428	0.82	0.001
12	Duroc, Landrace, and crossbred	40,513	46,415	0.84	0.001
13	Duroc, Yorkshire, and crossbred	40,837	46,424	0.81	0.001
14	Landrace, Yorkshire, and crossbred	39,688	46,458	0.87	0.001
15	Duroc, Landrace, Yorkshire, and crossbred	56,296	46,456	0.84	0.001

PVE proportion of variation in AGE explained by SNPs (i.e., SNP heritability); SE standard error; n = number

ISSN: 1297-9686