Effects of alleles in crossbred pigs estimated for genomic prediction depend on their breed-of-origin

BMC Genomics

Table 7 LD blocks in common^a across breed-of-origin for crossbred performance

Trait	S_CB-LR_CB		S_CB-LW_CB		LR_CB-LW_CB
Trait	Chr:Mb_S Chr:Mb_LR	gVar S gVar LR	Chr:Mb_S Chr:Mb_LW	gVar S gVar LW	Chr:Mb_LR Chr:Mb_LW	gVar LR gVar LW
BF			SSC11: 7,6–9.9	1.18	SSC15: 119,3 – 119,8	0.30
BF			SSC11: 7,6 – 9,4	0.58	SSC15: 118,2 – 118,8	0.22
ADG			SSC1: 158,9 – 160,2	0.33	SSC18: 54,3 – 54,7	0.15
ADG			SSC1: 160,9 – 162,4	0.22	SSC18: 53,2 – 53,9	0.27
RFI	SSC14: 46,2 – 48,0	0.21	SSC7: 2,2 – 2,8	0.30	SSC1: 183,9 – 185,0	0.53
RFI	SSC14: 45,8 – 47,8	0.19	SSC7: 2,6 – 3,0	0.20	SSC1: 183,7 – 184,8	0.29

^aBecause LD blocks are different between breed-of-origin, comparisons were done regarding whether the top 10 LD blocks explaining most of the genetic variance across breed-of-origin overlapped or were less than 1-Mb distance apart
BF = back fat thickness, ADG = average daily gain, and RFI = residual feed intake
S_CB = CB performance for S breed-of-origin, LR_CB = CB performance for LR breed-of-origin, and LW_CB = CB performance for LW breed-of-origin
gVar = percentage of genetic variance explained by a LD block according to the breed-of-origin

ISSN: 1471-2164