Probe:	pXE1.2
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS13: 1st branchial arch	Strong		3A	Expressed in the first branchial arch, extending to the presumptive pharynx region.
TS13: 1st branchial arch ectoderm	Present		3A
TS13: 1st branchial arch mesenchyme	Present	Regionally restricted	3A	Expressed in the central mesenchyme.
TS13: foregut diverticulum	Present	Regionally restricted	3A	Expressed in the presumptive pharynx posterior to the first branchial arch.

Structure	Level	Pattern	Image	Note
TS17: 1st branchial arch ectoderm	Present		3B

Structure	Level	Pattern	Image	Note
TS19: pancreas primordium	Strong	Widespread	4A
TS19: 1st branchial arch	Present		4A

Structure	Level	Pattern	Image	Note
TS19: pancreas primordium	Strong	Regionally restricted	4B	Expressed in regions other than the columnar epithelium of the interlobular ducts.

Structure	Level	Pattern	Image	Note
TS20: hindbrain	Present		5A
TS20: midbrain-hindbrain junction	Present	Regionally restricted	5A	Expressed as two distinct bands in the pontine flexure.

Structure	Level	Pattern	Image	Note
TS20: hindbrain	Present	Regionally restricted	5B	Expressed in the post-mitotic neurons outside the ventricular region.

Structure	Level	Pattern	Image	Note
TS22: hindbrain	Present		5C

Structure	Level	Pattern	Image	Note
TS12: 1st branchial arch	Present

Structure	Level	Pattern	Image	Note
TS15: 1st branchial arch	Present

Structure	Level	Pattern	Image	Note
TS17: ear epithelium	Present
TS17: hindbrain	Present
TS17: pancreas primordium	Present
TS17: oral region	Present	Regionally restricted		Expressed in the tooth primordia.

Structure	Level	Pattern	Image	Note
TS20: pinna surface epithelium	Present	Regionally restricted		Expressed in the epidermis lining the internal margin of the pinna, along an arc towards the vestibulocochlear ganglion.

Structure	Level	Pattern	Image	Note
TS22: cranial ganglion	Present
TS22: ear epithelium	Present
TS22: pancreas	Present