Table 1.

Overview over the validation scenarios (TRN, training set; VAL, validation set; UR, Unrelated; HS, Half sibs; FS, Full sibs; P: Parental lines)

Name	TRNa	VAL	Relationship	No. environments sampledb
				TRN	VAL
S1CV	8 random folds	1 Random fold	UR + HS + FS + P	8	8
S1A	8 families	1 Family	UR + HS	8	8
S1B	6 or 7 families	1 Family	UR	8	8
S2	6 or 7 families	1 Family	UR	7	1

^aThe TRN size remained constant across all S1-scenarios (n = 174)

^bCorresponds to combined years predictions