Figure 4

PPI network map of osmoregulation-related proteins using STRING. The red-colored figure (light to dark) represents the up-regulated protein and the green-colored figure (light to dark) represents the down-regulated protein. The saturation is displayed differently according to fold change (FC). The diamond shape is the main transmembrane protein in this study and the circle shape is a protein interacting with a transmembrane protein. (A) illustrates the difference in expression between the brackish water vs freshwater group, and (B) illustrates the difference in expression between the seawater vs brackish water group.