Probe:	Fgf10 cDNA10
Probe preparation:	Antisense labelled with digoxigenin RNA
Visualized with:	Alkaline phosphatase

Structure	Level	Pattern	Image	Note
TS15: otocyst	Present	Regionally restricted	1A	Expression in the entire ventral otocyst, concentrated in the lower half of the otocyst
TS15: inner ear	Present	Regionally restricted	1A	Expression did not extend to the presumptive endolymphatic duct.

Structure	Level	Pattern	Image	Note
TS19: inner ear vestibular component	Present	Regionally restricted	1B	Strong expression in 3 distinct patches identified as future epithelia for the canal crista. Strong expression in anterior part of cochlea.
TS19: acoustic ganglion	Present	Regionally restricted	1B	Expression in delaminating sensory neurons of cochlear and vestibular ganglia.

Structure	Level	Pattern	Image	Note
TS19: inner ear vestibular component	Present	Regionally restricted	1C	Strong expression in three distince patches identified as future epithelia for the three canal crista. Less prominent expression in the cochlea.

Structure	Level	Pattern	Image	Note
TS17: inner ear	Present	Regionally restricted	1D	Strong expression on anterior pole of otocyst Anterior patch of expression includes forming sensory neurons. Less extensive area of expression at the posterior pole of the otocyst.
TS17: acoustic ganglion	Present	Regionally restricted	1D	Expression in delaminating cells of the forming cochleovestibular ganglion.

Structure	Level	Pattern	Image	Note
TS19: inner ear vestibular component	Present	Regionally restricted	1E	Strong expression in three distince patches identified as future epithelia for the three canal crista. Less prominent expression in the utricle.

Structure	Level	Pattern	Image	Note
TS19: inner ear vestibular component	Present	Regionally restricted	1F	Strong expression in all three crista anlagen. Expression is throughout the columnar epithelium of the otocyst, but most concentrated in the ventricular layer.

Structure	Level	Pattern	Image	Note
TS27: crista ampullaris	Present	Regionally restricted	2A	Asymmetric distribution of expression in sensory epithelium of posterior canal cristae. Crista organs retained strong expression, with only a limited indication of a gradient falling off toward the abneural side.

Structure	Level	Pattern	Image	Note
TS27: utricle epithelium	Present	Regionally restricted	2B	Asymmetric distribution of expression in sensory epithelium of utricle. Higher concentration near theneural side, falling off toward the abneural side.

Structure	Level	Pattern	Image	Note
TS27: cochlea	Present	Regionally restricted	2C	Asymmetric expression increases through greater epithelial ridge to become strongest near row of inner hair cells. Strongest expression in greater epithelial ridge. No detectable expression in Claudius cells or cochlear lateral wall.
TS27: organ of Corti	Present	Regionally restricted	2C	Strong expression in the spiral sensory neuron. Only faintly expressed around outer hair cells.

Structure	Level	Pattern	Image	Note
TS27: cochlea	Present	Regionally restricted	2D	Within the greater epithelial ridge, continusous increase in expression, highest at region adjacent to inner hair cells.