Fig. 5. Expression of genes that have different patterns of expression between
gills and opercular epithelium. Carbonic anhydrase 2 (CA2) (A,B) and
Na+,H+-exchanger 3 (NHE3) (C,D) mRNA expression in
killifish gills (A,C; black/white) and opercular epithelium (B,D; grey) after
transfer from brackish water (10% seawater) to brackish water (BW, hatched
bars) or freshwater (FW, solid bars) (N=710). Expression is
relative to the expression of EF1
and is normalized to 12 h brackish
water controls. Values are means ±
S.E.M. *Significant difference from
time-matched brackish water control (P<0.05);
significant difference from 12 h brackish water control
(P<0.05).