Fig. 8.

Potential contribution of epigenetics in understanding changes in gene expression in fish. Illustrated are the differences in DNA methylation of the gonadal aromatase (cyp19a1) promoter of European sea bass between males and females. This promoter contains seven CpGs (columns) within the first 600 bp. a Ten clones (rows) of a typical male and a typical female are represented, showing unmethylated (open circle) or methylated (filled circle) CpGs. b Box plot of actual DNA methylation levels between sexes. Data redrawn from Navarro-Martín et al. (2011)