Figure 4
From: A comparative analysis of divergently-paired genes (DPGs) among Drosophila and vertebrate genomes
The expression correlation analysis for DPGs. The distributions of DPGs, CDPGs, CPGs, and random gene pairs are depicted in red, green, blue, and black, respectively. Each distribution is averaged over three microarray datasets. DPGs show stronger positive correlation in gene expression than CDPGs, CPGs, and random gene pairs.