Probe:	Olig1 probe2
Probe preparation:	Antisense labelled with digoxigenin RNA

Structure	Level	Pattern	Image	Note
TS15: otocyst	Present	Regionally restricted	1A	Expressed in the ventral zone, overlapped with a region that was positive for Sox2 and Jag1. Not coincided with Bmp4 expression.
TS15: neural tube	Weak	Regionally restricted	1A	Expressed in the ventral zone.

Structure	Level	Pattern	Image	Note
TS19: inner ear	Present	Regionally restricted	1B	Expressed in the ventral zone, continued to overlap the Sox2-positive area but had limited overlap with the Jag1-positive region.
TS19: inner ear epithelium	Present	Regionally restricted	1B	Expressed in the ventralmedial epithelial thickenings.

Structure	Level	Pattern	Image	Note
TS20: cochlear duct	Present	Regionally restricted	1C	Expressed in the portion of the cochlea opposite to the thickened epithelium. No longer expressed at the epithelial thickening and did not overlap with either Sox2 or Jag1 expression.
TS20: utricle	Present	Regionally restricted	1C	Transient expression in the ventromedial domain of the developing vestibular organ, overlapped an area that was positive for Sox2 and Jag1.

Structure	Level	Pattern	Image	Note
TS21: cochlear duct	Present	Regionally restricted	1D	Expressed in the portion of the cochlea opposite to the thickened epithelium. No longer expressed at the epithelial thickening and did not overlap with either Sox2 or Jag1 expression.
TS21: utricle	Absent		1D

Structure	Level	Pattern	Image	Note
TS17: otocyst	Present	Regionally restricted	1U	Expressed in the ventral zone, overlapped with a region that was positive for Sox2 and Jag1.

Structure	Level	Pattern	Image	Note
TS20: cochlear duct	Present		1V

Structure	Level	Pattern	Image	Note
TS21: cochlear duct	Present		1W

Structure	Level	Pattern	Image	Note
TS23: cochlear duct	Present	Regionally restricted	1X	Expressed in the domain close to the cochlear modiolus.

Structure	Level	Pattern	Image	Note
TS15: otocyst	Present	Regionally restricted	2A	Expressed in the ventral zone, overlapped with a region that was positive for Sox2.

Structure	Level	Pattern	Image	Note
TS19: inner ear	Present	Regionally restricted	2B	Expressed in the ventral zone, continued to overlap the Sox2-positive area.

Structure	Level	Pattern	Image	Note
TS20: cochlear duct	Present	Regionally restricted	2C	Expressed in the portion of the cochlea opposite to the thickened epithelium. No longer expressed at the epithelial thickening and did not overlap with either Sox2.
TS20: utricle	Present		2C	Expressed in vestibular organ. Continued to overlap the Sox2-positive area.

Structure	Level	Pattern	Image	Note
TS21: cochlear duct	Present	Regionally restricted	2D	Expressed in the portion of the cochlea opposite to the thickened epithelium. No longer expressed at the epithelial thickening and did not overlap with either Sox2.

Structure	Level	Pattern	Image	Note
TS13: otic placode	Absent

Structure	Level	Pattern	Image	Note
TS20: vestibulo-cochlear ganglion	Absent

Structure	Level	Pattern	Image	Note
TS21: vestibulo-cochlear ganglion	Absent

Structure	Level	Pattern	Image	Note
TS22: cochlear duct	Present
TS22: utricle	Absent			vestibular organ
TS22: vestibulo-cochlear ganglion	Absent			vestibular organ

Structure	Level	Pattern	Image	Note
TS23: vestibulo-cochlear ganglion	Absent
TS23: utricle	Absent			vestibular organ

Structure	Level	Pattern	Image	Note
TS24: cochlear duct	Absent
TS24: vestibulo-cochlear ganglion	Absent
TS24: utricle	Absent			vestibular organ