Probe:	miR-182 LNA probe
Probe preparation:	Antisense labelled with digoxigenin RNA
Visualized with:	Alkaline phosphatase

Structure	Level	Pattern	Image	Note
TS14: otic placode	Absent

Structure	Level	Pattern	Image	Note
TS15: otocyst	Present	Widespread	1B	Broad expression within the otic vesicle

Structure	Level	Pattern	Image	Note
TS19: acoustic ganglion	Present		1E	Expression in the entire otic vesicle, cochleo-vestibular ganglion, and all cells of the neural tube.
TS19: inner ear	Present		1E	Expression in the entire otic vesicle, cochleo-vestibular ganglion, and all cells of the neural tube.
TS19: neural tube	Present		1E	Expression in the entire otic vesicle, cochleo-vestibular ganglion, and all cells of the neural tube.

Structure	Level	Pattern	Image	Note
TS20: inner ear vestibular component	Present	Widespread	2B	Expression in the entire vestibule.

Structure	Level	Pattern	Image	Note
TS20: inner ear vestibular component	Present	Widespread	2E	Expression in all different cells of the epithelium.

Structure	Level	Pattern	Image	Note
TS22: inner ear vestibular component	Present	Regionally restricted	2H	Expression restricted to hair cells of the luminal layer of the vestibule. No expression in the surrounding mesenchyme.

Structure	Level	Pattern	Image	Note
TS20: vestibulo-cochlear ganglion	Present		2K

Structure	Level	Pattern	Image	Note
TS20: cochlear duct epithelium	Present	Ubiquitous	2Q	Expression in all cells of the cochlear duct.

Structure	Level	Pattern	Image	Note
TS23: cochlear duct	Present	Regionally restricted	3B	Expression in the majority of the cochlear duct cells. Stronger expression in the dorsal portion of the cochlear duct.
TS23: cochlear duct epithelium	Strong	Regionally restricted	3B	Stronger expression especially in the sensory epithelium and in the medial thickened region of the cochlear duct (greater epithelial ridge, GER).
TS23: greater epithelial ridge	Strong	Regionally restricted	3B	Stronger expression especially in the sensory epithelium and in the medial thickened region of the cochlear duct (greater epithelial ridge, GER).
TS23: vestibulo-cochlear ganglion	Present		3B	Authors report expression in the spiral ganglion.

Structure	Level	Pattern	Image	Note
TS23: vestibular component epithelium	Present	Widespread	3E

Structure	Level	Pattern	Image	Note
TS25: cochlear duct epithelium	Present	Regionally restricted	3H	Expression restricted to dorsal portion of cochlear duct (sensory epithelium and GER) and spiral ganglion.
TS25: greater epithelial ridge	Present	Regionally restricted	3H	Expression restricted to dorsal portion of cochlear duct (sensory epithelium and GER) and spiral ganglion.
TS25: vestibulo-cochlear ganglion	Present	Regionally restricted	3H	Expression restricted to dorsal portion of cochlear duct (sensory epithelium and GER) and spiral ganglion.

Structure	Level	Pattern	Image	Note
TS25: organ of Corti	Present	Regionally restricted	3K	Expression in hair cells.
TS25: greater epithelial ridge	Weak	Regionally restricted	3K	Lesser extent of expression in a small proportion of the GER.
TS25: cochlear duct epithelium	Present	Regionally restricted	3K	In the sensory epithelium, no expression in the supporting cell area.

Structure	Level	Pattern	Image	Note
TS25: vestibular component epithelium	Present	Widespread	3N	In the sensory epithelium, no expression in the supporting cell area.

Structure	Level	Pattern	Image	Note
TS27: organ of Corti	Present	Regionally restricted	4E	Expression in cochlear hair cells in the organ of Corti.
TS27: cochlear ganglion	Present	Regionally restricted	4E	Expression in spiral ganglion neurons.

Structure	Level	Pattern	Image	Note
TS27: organ of Corti	Present	Regionally restricted	4F	Expression in cochlear hair cells in the organ of Corti.

Structure	Level	Pattern	Image	Note
TS27: cochlear ganglion	Present	Regionally restricted	4G	Expression in cochlear hair cells in the organ of Corti.

Structure	Level	Pattern	Image	Note
TS27: organ of Corti	Present	Regionally restricted	4H	Expression in vestibular hair cells.

Structure	Level	Pattern	Image	Note
TS27: cochlear ganglion	Strong	Regionally restricted		Strong expression specific to hair cells and the spiral ganglion.
TS27: organ of Corti	Strong	Regionally restricted		Strong expression specific to hair cells and the spiral ganglion.

Structure	Level	Pattern	Image	Note
TS28: organ of Corti	Present	Regionally restricted		Expression in hair cells.

Structure	Level	Pattern	Image	Note
TS28: organ of Corti	Present	Regionally restricted	5B	Expression confined to hair cells.

Structure	Level	Pattern	Image	Note
TS28: cochlear ganglion	Present	Regionally restricted	5E	Expression in spiral ganglion in neuronal cell bodies.

Structure	Level	Pattern	Image	Note
TS28: organ of Corti	Present	Regionally restricted	5H	Espression in hair cells.

Structure	Level	Pattern	Image	Note
TS28: organ of Corti	Present	Regionally restricted	5J	No expression in hair cells. Expression restricted to the inner sulcus.
TS28: osseus spiral lamina	Present	Regionally restricted	5J	Expression in the spiral limbus. Lower expression in interdental cells.

Structure	Level	Pattern	Image	Note
TS28: cochlear ganglion	Present	Regionally restricted	5N	Expression in spiral ganglion in neuronal cell bodies.

Structure	Level	Pattern	Image	Note
TS28: organ of Corti	Present	Regionally restricted	5Q	Expression in hair cells.

Structure	Level	Pattern	Image	Note
TS28: organ of Corti	Absent			No specific staining in organ of Corti or spiral limbus.
TS28: osseus spiral lamina	Absent			No specific staining in organ of Corti or spiral limbus.