Probe:	Boc cDNA
Probe preparation:	Antisense labelled with digoxigenin RNA

Structure	Level	Pattern	Image	Note
TS15: otocyst	Absent		1E
TS15: neural tube	Present	Regionally restricted	1E	Expression was localized in the middle region of the neural tube.

Structure	Level	Pattern	Image	Note
TS17: otocyst	Absent		1J
TS17: neural tube	Present	Regionally restricted	1J	Expression was localized in the middle region of the neural tube.

Structure	Level	Pattern	Image	Note
TS20: inner ear epithelium	Absent		2F

Structure	Level	Pattern	Image	Note
TS20: inner ear epithelium	Absent		2L

Structure	Level	Pattern	Image	Note
TS20: utricle epithelium	Weak		2R	Expression was not observed in the otic epithelium, with the exception of an area of weak expression in the utricular macula.

Structure	Level	Pattern	Image	Note
TS20: inner ear epithelium	Absent		2X
TS20: vestibulo-cochlear ganglion	Absent		2X

Structure	Level	Pattern	Image	Note
TS23: inner ear vestibular component	Weak	Regionally restricted	4K	Weak expression was detected in the sensory regions.
TS23: vestibular component mesenchyme	Weak		4K

Structure	Cell Type	Level	Pattern	Image	Note
TS23: greater epithelial ridge		Weak		4L' , 4L
TS23: cochlea	supporting cell of cochlea	Weak	Regionally restricted	4L' , 4L	Expression was detected in Hansen and Claudius cells.
TS23: cochlea	Claudius cell	Weak		4L , 4L'

Structure	Level	Pattern	Image	Note
TS27: inner ear vestibular component	Ambiguous	Regionally restricted	5I' , 5I'' , 5I	Expression was down-regulated in the sensory regions of the vestibule.

Structure	Cell Type	Level	Pattern	Image	Note
TS27: external spiral sulcus		Present		5J , 5J' , 5J''
TS27: greater epithelial ridge		Present		5J , 5J' , 5J''
TS27: cochlea	Claudius cell	Present		5J'' , 5J , 5J'
TS27: cochlea	supporting cell of cochlea	Present	Regionally restricted	5J'' , 5J' , 5J	Expression was detected in Hensen and Claudius cells.

Structure	Level	Pattern	Image	Note
TS23: middle ear	Weak	Regionally restricted	6F	Expression was detected in middle ear joints and annular ligaments.
TS23: stapes	Weak	Regionally restricted	6F	Expression was detected in stapedial footplate.

Structure	Level	Pattern	Image	Note
TS23: middle ear	Weak	Regionally restricted	6L	Expression was detected in middle ear joints.