Fig. 6.

Fig. 6.

Expression of EGFP by hoxa13b^egfp and hoxd13a^egfp in pectoral fin development of zebrafish. (A-F) EGFP expression induced by hoxa13b^egfp in pectoral fin development of WT (A-C) and hhip^−/− (D-F) zebrafish. (G,H) EGFP expression induced by hoxd13a^egfp in pectoral fin development of WT. Numbers indicate the first to fourth proximal radials. White arrowheads indicate significant expression of EGFP by hoxa13b^egfp. White bars represent the range of EGFP expression. White asterisks denote EGFP expression by col2a1a:egfp on the distal radials. Observations were conducted on more than five larvae at each developmental stage. Magenta fluorescence indicates the paired fin skeleton marked by sox10:DsRed. Double arrows indicate the anterior (A)-posterior (P) axis. The standard length of individuals (in mm) is shown in the top right of each panel. Scale bars: 250 µm.