Fig. 4

Changes in expression of GnRH-R2 mRNA in brain and ovary tissues during the oocyte development stage in Coila nasus. The stages were defined as above. Expression values were normalized to those of 18sRNA. Data are expressed as the mean fold difference (mean ± SE, n = 3) compared to the 18sRNA expression. Columns with the different letters above them are significantly different (P < 0.05, a<b<c <d<e)