FIG. 3.
Hair cell-specific expression of Gfi1-Cre in the cochlea. (a–c, g–i) Section in situ hybridization shows the hair cell-specific expression pattern of Gfi1 at E13.5 (a), E14.5 (b), E15.5 (c), E16.5 (d), E17.5 (e) and P4 (f). (a′–f′) X-Gal staining for lacZ activities reveals the Cre-mediated recombination events in the Gfi1Cre/+; R26R-lacZ cochleae at E13.5 (a′), E14.5 (b′), E15.5 (c′), E16.5 (d′), E17.5 (e′) and P4 (f′). Arrows indicate the inner hair cells. Brackets indicate the out hair cells. Asterisks indicate the spiral ganglion cells. Scale bars equal 50 μm.