Figure 1From: Developmental and light-entrained expression of melatonin and its relationship to the circadian clock in the sea anemone Nematostella vectensisMelatonin content in Nematostella vectensis. Results in (a) Nematostella vectensis adults cultured in a light–dark (light gray line) (12:12 h) or constant darkness cycle (black line); and in 48-h (c), 1-week- (d) and 2-week-old (e) embryos in light dark cycle. *P <0.05. Two-way analysis of variance (ANOVA) followed by Bonferroni multiple comparison (n = 5 individuals/samples per time point, per group). (b) Curve obtained with the cosinor test with the adult animals cultured in the light–dark cycle. The horizontal line, the mesor, represents the mean oscillation, and the vertical arrow, the acrophase, the time of occurrence of the daily-peak of melatonin.Back to article page