Figure 3
From: Genome-wide eQTLs and heritability for gene expression traits in unrelated individuals
Frequency distribution of heritability estimates ( h2) in genes with or without significant eQTL associations. (a) Histogram showing the distribution of heritability estimates of genome-wide gene expression levels. Grey bar, blue line and red dashed line present h2 of genes without eQTL associations, genes with cis eQTLs and genes with only trans eQTLs, respectively. (b) Stacked histogram showing the distribution of the proportion of phenotypic variance explained by individual cis (blue) and trans (black) eQTLs.