Expression of Gli-3 in the mouse epididymis. Immunohistochemical staining for Gli-3 was performed in the epididymis of Arl13b-Cetn2 dTg mice at 40 days postnatal (dpn). Gli-3 was detected in the basal cell nuclei (stars) from the different epididymal segments. P-Cap: proximal caput; D-Cap: distal caput; Cor.:corpus; Cau.:cauda. Inset scale bars: 10 μm