Percentage of expressed genes associated with 4 types of promoters. The blue, red and green colors correspond to expressed left genes, right genes and 2 genes, respectively. The numbers on the top of the bars give the total of expressed genes.
Wang et al. BMC Medical Genomics 2013 6(Suppl 1):S5 doi:10.1186/1755-8794-6-S1-S5