Fig. 4
Effect of target panel size on imputation quality. Imputation accuracy (R2dose) for markers grouped in MAF bins when genotypes were imputed into the haplotypes of 500 target samples that were inferred together with additional samples (a). Proportion of polymorphic markers (all and rare; MAF < 2%) in the full data (n = 3938) that are polymorphic in the reference (n = 1000), base target (n = 500) and, imputed data (base), when genotypes were imputed into haplotypes of 500 base animals inferred with different number of additional samples (b)