Fig. 2.

Accuracy of genomic and pedigree-based prediction within populations. Comparison of prediction accuracy (Y-axis) of two populations using increasing SNP densities from 0.5 to 33 K (X-axis) assessed by cross-validation analyses. “Random Selection” involved random assignment of individuals to training and validation sets (a) and (b); “Sibling” involved assigning full siblings from each family to both the training and validation sets (c) and (d); and “Non-sibling” involved avoidance of full-sibling animals in the training and validation sets (e) and (f). Panels a, c and e represent results for population I and panels b, d, and f represent those for population II