Fig. 4From: The dopamine β-hydroxylase gene in Chinese goose (Anas cygnoides): cloning, characterization, and expression during the reproductive cycleExpression patterns of gDBH during the reproductive cycle of Zhedong geese. Gene expression was determined by qPCR and is represented relative to GAPDH expression. Vertical bars represent the mean ± S.D. (n = 3). Different letters above error bars indicate highly significant differences between respective means (P < 0.01)Back to article page