4. Discussion
The study of DNA methylation dynamics and its contribution to salinity
acclimation through changes in gene expression are of particular
importance in European sea bass, a truly euryhaline species, that
encounters frequent salinity fluctuations in its natural environment.
There is clear evidence that a two-week freshwater transfer affects
genome-wide DNA methylation in European sea bass juveniles.
Salinity-induced methylation changes were compared in different genomic
contexts (promoters vs the body of genes).