Fig. 2.

Distributions of SNP effects for 305-day milk yield (kg), estimated by GREML and single SNP GWAS. The mean ($\overline{x}$) and standard deviation ($\mathit{sd}$) of the effects are shown. Note that distributions were truncated such that the first and last bar represent “smaller than” and “bigger than” classes (i.e. the range was larger than shown here). Also note that the dominance effects shown here do not include the mean dominance effect that was absorbed by the fixed regression on genome-wide homozygosity