Fig. 7From: Circadian rhythm of melatonin secretion and growth-related gene expression in the tiger puffer Takifugu rubripes Expression of growth-related genes mRNA in the tiger puffer diencephalon by after 1 h of melatonin i.p. Means represented by different letters are significant (P < 0.05). The relative values of (a) ss1, (b) ghrh1 and (c) ghrh2 mRNA expressions were normalized against β-actin and then averaged. Values are mean ± SEMBack to article page