Figure 1
From: Synthesis of 53 tissue and cell line expression QTL datasets reveals master eQTLs
Frequency of eGenes and eQTLs across 53 datasets. A: Distribution of the occurrence of 19,038 unique eGenes across all 53 eQTL datasets. Inset: histogram of 1,784 genes found in > =15 eQTL datasets. B: Distribution of the occurrence of 56,089 unique, best cis-eQTLs across all 53 eQTL datasets. Inset: Histogram of 279 cis-eQTLs found in > =15 eQTL datasets. C: Distribution of the occurrence of 7,075 unique and best trans-eQTLs across all 53 eQTL datasets. Inset: Histogram of 37 trans-eQTLs found in ≥ 4 eQTL datasets. For each trans-eQTL, all proxy SNPs in perfect linkage disequilibrium (r^2 = 1 in CEU) are also included [42].