Fig. 4
From: Distinct tooth regeneration systems deploy a conserved battery of genes
Wnt signaling in zebrafish and stickleback replacement tooth germs. Black arrows mark replacement tooth germ epithelium, white arrows mark replacement tooth germ mesenchyme. a wnt10a expression in a cap-stage zebrafish replacement tooth germ. b Wnt10a expression in a bud-stage stickleback replacement tooth germ. Note concentrated expression in the distalmost epithelium (arrow). c lef1 expression in a cap-stage zebrafish replacement tooth germ. d Lef1 expression in a bud-stage stickleback replacement tooth germ. e, f TCF/Lef synthetic Wnt activity reporter is active in adult replacement tooth germs. Scale bars in a–d = 20 μm; e and f = 500 μm