Probe:	Cyp26a1 probe1
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS17: otocyst mesenchyme	Strong	Regionally restricted	5D	Strong expression was detected in the mesenchymal tissues surrounding the lateral and ventral domains of the otocyst.
TS17: otocyst epithelium	Strong	Regionally restricted	5D	Strong expression was detected in the ventral otic epithelium that gives rise to the cochlear epithelium.
TS17: acoustic ganglion	Absent		5D

Structure	Level	Pattern	Image	Note
TS20: inner ear	Present	Regionally restricted	5I	Expression was strong in the ventral region of the otocyst.
TS20: semicircular canal mesenchyme	Strong	Regionally restricted	5I	Expression was strong in the mesenchyme surrounding all semicircular canals.

Structure	Level	Pattern	Image	Note
TS22: cochlear duct epithelium	Present
TS22: endolymphatic duct	Present
TS22: inner ear	Present	Regionally restricted		Expression was detected in the endolymphatic duct, the tissues surrounding the round window membrane, and beneath the sensory epithelium in the sacculus.
TS22: saccule	Present	Regionally restricted		Expression was detected beneath the sensory epithelium in the sacculus.

Structure	Level	Pattern	Image	Note
TS22: cochlea	Present		5N
TS22: inner ear vestibular component	Present	Regionally restricted	5N	Expression was detected below the sensory epithelium of the saccule, presumably in vestibular ganglion cells.

Structure	Level	Pattern	Image	Note
TS26: endolymphatic duct	Present