Probe:	Gli1 cDNA6
Probe preparation:	Antisense labelled with S35 RNA

Structure	Level	Pattern	Image	Note
TS19: mandibular process	Present	Regionally restricted	1D	The expression of Gli1 was similar to Ptc expression.
TS19: maxillary process	Present	Regionally restricted	1D	The expression of Gli1 was similar to Ptc expression.

Structure	Level	Pattern	Image	Note
TS20: mandibular process	Moderate	Regionally restricted	1J	Gli1 was expressed in the odontogenic epithelium and mesenchyme of the incisors, whereas in the molars the medial pattern of expression was maintained. Gli1 expression was slightly lower than that of Ptc.
TS20: maxillary process	Moderate	Regionally restricted	1J	Gli1 was expressed in the odontogenic epithelium and mesenchyme of the incisors, whereas in the molars the medial pattern of expression was maintained. Gli1 expression was slightly lower than that of Ptc.

Structure	Level	Pattern	Image	Note
TS21: lower jaw incisor	Present	Regionally restricted	1P	In the maxillary and mandibular incisors and in the molars, Gli1 was apparent in the dental papilla, part of the dental organ and in the dental follicle.
TS21: lower jaw molar	Present	Regionally restricted	1P	In the maxillary and mandibular incisors and in the molars, Gli1 was apparent in the dental papilla, part of the dental organ and in the dental follicle.
TS21: upper jaw incisor	Present	Regionally restricted	1P	In the maxillary and mandibular incisors and in the molars, Gli1 was apparent in the dental papilla, part of the dental organ and in the dental follicle.
TS21: upper jaw molar	Present	Regionally restricted	1P	In the maxillary and mandibular incisors and in the molars, Gli1 was apparent in the dental papilla, part of the dental organ and in the dental follicle.

Structure	Level	Pattern	Image	Note
TS22: lower jaw molar	Present	Regionally restricted	1V	In the molars Gli1 was expressed in a region of the tooth germ that appeared to surround the area of the enamel that was marked by Shh expression.
TS22: upper jaw molar	Present	Regionally restricted	1V	In the molars Gli1 was expressed in a region of the tooth germ that appeared to surround the area of the enamel that was marked by Shh expression.
TS22: enamel organ	Absent		1B' , 1V

Structure	Level	Pattern	Image	Note
TS22: lower jaw incisor	Present	Regionally restricted		Gli1 mRNA could be detected in the incisors in similar regions as at E13.5.
TS22: upper jaw incisor	Present	Regionally restricted		Gli1 mRNA could be detected in the incisors in similar regions as at E13.5.

Structure	Level	Pattern	Image	Note
TS21: lower jaw molar	Present		8B
TS21: upper jaw molar	Present		8B

Structure	Level	Pattern	Image	Note
TS22: lower jaw molar epithelium	Absent		8D
TS22: upper jaw molar epithelium	Absent		8D
TS22: lower jaw molar mesenchyme	Present		8D
TS22: upper jaw molar mesenchyme	Present		8D

Structure	Level	Pattern	Image	Note
TS21: lower jaw molar	Strong		8F	Gli1 was significantly upregulated.
TS21: upper jaw molar	Strong		8F	Gli1 was significantly upregulated.

Structure	Level	Pattern	Image	Note
TS21: lower jaw molar epithelium	Moderate		8H	Gli1 was slightly weaker in the epithelial component.
TS21: upper jaw molar epithelium	Moderate		8H	Gli1 was slightly weaker in the epithelial component.
TS21: lower jaw molar mesenchyme	Present		8H
TS21: upper jaw molar mesenchyme	Present		8H