Fig. 4From: A pipeline for RNA-seq based eQTL analysis with automated quality control proceduresQQplot. Q–Q plots of local and distal eQTLs in ROSMAP, Mayo, MSBB and CommonMind studies. Theoretical (x-axis) p-values versus MatrixEQTL calculated p-values (y-axis) in \(-\log 10\) transformation were plotted for each dataset. Red points represent cis-eQTLs, and blue points represent trans-eQTLs. The grey line represents null lineBack to article page