Probe:	Tfap2b cDNA2
Probe preparation:	Antisense labelled with digoxigenin RNA
Visualized with:	Alkaline phosphatase

Structure	Level	Pattern	Image	Note
TS17: eye epithelium	Present	Regionally restricted	1B	Expression is in the superficial and corneal epithelium and eyelid epithelium.
TS17: head mesenchyme derived from neural crest	Present	Regionally restricted	1B	Expression is in neural crest cells adjacent to the eye.
TS17: eye mesenchyme	Present	Regionally restricted	1B	Expression includes the condensed mesenchyme of the future eyelid.

Structure	Level	Pattern	Image	Note
TS20: cornea epithelium	Present		2B
TS20: eye mesenchyme	Present		2B
TS20: eye epithelium	Present	Regionally restricted	2B	Expression is in the epithelium of the eyelids and is absent from the base of the groove.
TS20: hyaloid cavity	Present	Regionally restricted	2B	Expression is in the tissues of the hyaloid cavity.
TS20: retina	Absent		2B

Structure	Level	Pattern	Image	Note
TS23: retina layer	Present	Regionally restricted	4B	Expression is in the innermost layer of the outer layer of the neural retina.
TS23: eyelid epithelium	Present		4B
TS23: bulbar conjunctiva	Present	Regionally restricted	4B	Expression is in the mesenchyme adjacent to the corneal epithelium.
TS23: neural retina	Present	Single cells	4B	Expression is in the outermost layer.
TS23: cornea	Present	Regionally restricted	4B	Expression is in the endothelium.

Structure	Level	Pattern	Image	Note
TS23: eyelid epithelium	Present	Regionally restricted	5B	Expression is in the ectoderm adjacent to the periderm cells in the eyelid bud.
TS23: cornea	Present	Regionally restricted	5B	Expression is in the endothelium.