Table 3.

Accuracy {expressed as correlations between true breeding values (TBV) and genomic estimated breeding values [GEBV; r(TBV, GEBV)]}, and slopes [b(TBV, GEBV)] of regression of TBV on GEBV for genomic prediction with 200 simulated QTL

	Ayrshire			Holstein
SNP panel	Single-task	Pooling	Multi-task	Single-task	Pooling	Multi-task
r(TBV, GEBV)
ρ = 0.2
800 k	0.46 ± 0.02	0.44 ± 0.04	0.47 ± 0.03	0.77 ± 0.01	0.76 ± 0.01	0.77 ± 0.01
400 k	0.46 ± 0.02	0.43 ± 0.03	0.47 ± 0.02	0.76 ± 0.01	0.76 ± 0.01	0.76 ± 0.01
200 k	0.46 ± 0.02	0.42 ± 0.04	0.47 ± 0.02	0.75 ± 0.01	0.75 ± 0.01	0.75 ± 0.01
100 k	0.45 ± 0.02	0.41 ± 0.03	0.46 ± 0.03	0.74 ± 0.01	0.74 ± 0.01	0.74 ± 0.01
ρ = 0.8
800 k	0.54 ± 0.04	0.57 ± 0.02	0.56 ± 0.03	0.74 ± 0.02	0.75 ± 0.01	0.75 ± 0.02
400 k	0.54 ± 0.03	0.56 ± 0.03	0.55 ± 0.03	0.74 ± 0.02	0.74 ± 0.02	0.74 ± 0.02
200 k	0.54 ± 0.03	0.56 ± 0.02	0.55 ± 0.03	0.73 ± 0.02	0.73 ± 0.02	0.73 ± 0.02
100 k	0.53 ± 0.03	0.52 ± 0.02	0.54 ± 0.03	0.72 ± 0.02	0.72 ± 0.02	0.72 ± 0.02
b(TBV, GEBV)
ρ = 0.2
800 k	1.14 ± 0.08	0.89 ± 0.09	1.16 ± 0.09	1.07 ± 0.01	1.09 ± 0.01	1.07 ± 0.01
400 k	1.14 ± 0.09	0.91 ± 0.08	1.13 ± 0.09	1.07 ± 0.01	1.09 ± 0.01	1.07 ± 0.01
200 k	1.14 ± 0.09	0.88 ± 0.08	1.14 ± 0.09	1.08 ± 0.01	1.09 ± 0.01	1.08 ± 0.01
100 k	1.15 ± 0.09	0.89 ± 0.09	1.15 ± 0.09	1.09 ± 0.02	1.11 ± 0.03	1.09 ± 0.02
ρ = 0.8
800 k	1.12 ± 0.11	1.00 ± 0.06	1.07 ± 0.09	1.01 ± 0.02	1.00 ± 0.02	1.01 ± 0.02
400 k	1.11 ± 0.11	1.02 ± 0.07	1.08 ± 0.09	1.01 ± 0.02	1.00 ± 0.02	1.01 ± 0.02
200 k	1.12 ± 0.11	1.04 ± 0.07	1.11 ± 0.09	1.01 ± 0.02	1.01 ± 0.02	1.01 ± 0.02
100 k	1.11 ± 0.11	0.99 ± 0.07	1.10 ± 0.10	1.01 ± 0.02	1.01 ± 0.02	1.01 ± 0.02