Fig. 3.

Fig. 3.

Expression of shha^egfp and shhb^egfp in zebrafish, as well as shha^egfp in medaka, during paired fin development. (A-H) EGFP expression in pectoral fin development of shha^egfp (A-D) and shhb^egfp (E-H) zebrafish. (I-N) EGFP expression in pelvic fin development of shha^egfp (I-K) and shhb^egfp (L-N) zebrafish. (O-R) EGFP expression in pectoral fin development of shha^egfp medaka. (S-V) EGFP expression in pelvic fin development of shha^egfp medaka. All observations were conducted on ten or more larvae at each developmental stage. Magenta fluorescence indicates paired fin skeleton marked by sox10:DsRed. Filled white arrowheads denote EGFP expression and unfilled white arrowheads denote no EGFP expression. Dashed lines outline paired fin buds. Asterisks highlight EGFP expression at the tips of fin rays. White arrows indicate autofluorescence by leucophores. Double arrows mark the anterior (A)-posterior (P) axis. The standard length of individuals (in mm) is shown in the bottom left of each panel. wpf, weeks post-fertilization. Scale bars: 100 µm (A-H); 250 µm (I-V).