Figure 1.

Developmental expression of five mRNAs of cyp1 isoforms in zebrafish whole embryos and larvae from 4 to 144 h post-fertilization (hpf) in comparison with their expression in the livers of adults of both sexes. Results of cyp1a (A), cyp1b1 (B), cyp1c1 (C), cyp1c2 (D) and cyp1d1 (E) are shown. “a” indicates a significant (p < 0.05) difference compared with male livers and “b” is a significant (p < 0.05) difference compared with female livers. Black letters indicate significantly lower expression in embryos or larvae compared with adult livers, and red letters indicate significantly higher expression in embryos or larvae compared with adult livers. n = 6.