Probe:	mRAR-alpha
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS17: otocyst	Absent		1A
TS17: hindbrain	Present	Regionally restricted	1A	Expression was detected in the dorsal portion.

Structure	Level	Pattern	Image	Note
TS20: inner ear epithelium	Present	Regionally restricted	1D	Expression was detected along both sides of the otocyst epithelium.
TS20: inner ear mesenchyme	Present	Non-Uniform	1D	Expression was detected in the mesenchyme surrounding the otocyst. Some regions had lower expression levels.

Structure	Level	Pattern	Image	Note
TS22: cochlea	Present			Expression was less abundant than at E12.5.
TS22: inner ear vestibular component	Present			Expression was less abundant than at E12.5.

Structure	Level	Pattern	Image	Note
TS24: cochlea	Present			Expression was less abundant than at E12.5.
TS24: inner ear vestibular component	Present			Expression was less abundant than at E12.5.

Structure	Level	Pattern	Image	Note
TS26: cochlear ganglion	Present		1I
TS26: organ of Corti	Present		1I
TS26: cochlear duct	Present	Regionally restricted	1I	Expression was detected in the inner spiral limbus.
TS26: cochlea	Present	Non-Uniform	1I	Expression was lower in the basal turn than in the upper turn of the cochlea.

Structure	Level	Pattern	Image	Note
TS26: organ of Corti	Present		1L

Structure	Level	Pattern	Image	Note
TS28: cochlear ganglion	Present		2A
TS28: organ of Corti	Present		2A
TS28: vestibulocochlear nerve cochlear component	Present		2A
TS28: stria vascularis	Weak		2A

Structure	Level	Pattern	Image	Note
TS28: spiral ligament	Strong		2C
TS28: stria vascularis	Strong		2C
TS28: vestibulocochlear nerve cochlear component	Strong		2C
TS28: cochlear ganglion	Weak		2C
TS28: organ of Corti	Weak		2C
TS28: otic capsule	Weak		2C
TS28: spiral limbus	Weak		2C