Systematic genotyping of groups of cows to improve genomic estimated breeding values of selection candidates

Table 3 Model-derived reliabilities (\({\mathbf{R}}^{2}\)) and validation reliabilities (\({\varvec{\uprho}}^{2}\)) in the base scenario with directional and random selection

Validation set	Sire status	Number of individuals	Base scenario
			Random selection			Directional selection
			\({\mathbf{R}}^{2}\)	\({\varvec{\uprho}}^{2}\)	\({\varvec{\uprho}}_{{{\mathbf{QTL}}}}^{2}\)	\({\mathbf{R}}^{2}\)	\({\varvec{\uprho}}^{2}\)	\({\varvec{\uprho}}_{{{\mathbf{QTL}}}}^{2}\)
9	Reference	1050	54	51	59	58	26	32
10a	Reference	4516	54	51	58	58	40	48
10b	Not reference	10,484	48	40	49	48	33	41

Validation animals were divided according to whether their sire was in the reference set or not. For the purpose of illustration (and only here), we included results of analyses in which the segregating QTL were included in the SNP panel used for estimation and prediction (\({\varvec{\uprho}}_{{{\mathbf{QTL}}}}^{2}\))

ISSN: 1297-9686