Probe:	Tbx22 cDNA4
Probe preparation:	Antisense labelled with digoxigenin RNA

Structure	Level	Pattern	Image	Note
TS20: palatal shelf	Present		6A

Structure	Level	Pattern	Image	Note
TS21: palatal shelf mesenchyme	Present	Graded	6B	Expression is strongest in cells immediately subjacent to the medial edge epithelium and is stronger medially than laterally.
TS21: oral epithelium	Present		6B
TS21: palatal shelf epithelium	Present		6B
TS21: tongue	Present	Regionally restricted	6B	Expression is in the anterior region.

Structure	Level	Pattern	Image	Note
TS22: tongue mesenchyme	Strong	Regionally restricted	6D	Expression is in the ventral region at the base.
TS22: frenulum	Strong		6D
TS22: tooth mesenchyme	Present		6D
TS22: palatal shelf	Weak		6D

Structure	Level	Pattern	Image	Note
TS23: nasal septum	Present	Regionally restricted	6E	Expression is at the base.

Structure	Level	Pattern	Image	Note
TS23: oral epithelium	Very strong		6F
TS23: palatal shelf	Present	Regionally restricted	6F	Expression is at the site of palatal shelf fusion.
TS23: palatal shelf epithelium	Present	Regionally restricted	6F	Expression is at the disrupted epithelial seam.

Structure	Level	Pattern	Image	Note
TS25: nose	Present	Regionally restricted	6G	Expression is in nasal cartilage.
TS25: nasal septum	Present	Regionally restricted	6G	Expression is at the base.
TS25: face	Present	Regionally restricted	6G	Expression is in glandular structures in the nose and face.
TS25: gland	Present	Regionally restricted	6G	Expression is in glandular structures in the nose and face.
TS25: olfactory gland	Present		6G
TS25: secondary palate	Absent		6G

Structure	Level	Pattern	Image	Note
TS25: tooth mesenchyme	Present		6H

Structure	Level	Pattern	Image	Note
TS25: tooth	Present		6I

Structure	Level	Pattern	Image	Note
TS25: lung epithelium	Present		6J

Structure	Level	Pattern	Image	Note
TS25: vibrissa follicle	Present		6K