Fig. 3
From: Identifying and mitigating batch effects in whole genome sequencing data
Quantile-quantile plots revealed differences in genotype quality (GQ) distributions. Hom Ref, homozogyous reference (a,b); Het, heterozygotes (c,d); Hom Alt, homozygous alternative (e,f); UGAs, sites with p-value <5E-8 in the Batch GWAS; Random, comparable set of sites with p-value >5E-8 in the Batch GWAS. Note that in (d) most points overlap the single darkest point on the plot