Fig. 2From: Effect of glucocorticoids on expression of cutaneous antimicrobial peptides in northern leopard frogs (Lithobates pipiens)RT-qPCR threshold cycles of the two reference genes (EF1-α and RPL8) at the six sampling times during the experiment. EF1-α and RPL8 levels were significantly correlated (Pearson r = 0.965, P < 0.0001), and the levels changed significantly over time (mean ± SEM, repeated measures ANOVA)Back to article page