Figure 4. Venn diagram showing overlap of genes identified by three different methodologies

Retina enriched genes identified by the custom microarray using retina-brain and retina-liver comparisons were compared to SAGE and library retina enriched datasets generated by t test analysis. The top 1134 retina-enriched genes detected by each method were compared. Only a limited number of genes were found to be in common, indicated in the overlapping regions in the diagram.