Probe:	Runx3 cDNA2
Probe preparation:	Antisense labelled with S35 RNA

Structure	Level	Pattern	Image	Note
TS21: Meckel's cartilage	Moderate		1C
TS21: cranium	Present	Regionally restricted	1C	Expression was detected in osteogenic regions and ossified bone.
TS21: head mesenchyme	Weak	Regionally restricted	1C	Expression was detected in craniofacial cartilage.
TS21: eyelid mesenchyme	Present		1C

Structure	Level	Pattern	Image	Note
TS20: jaw primordium mesenchyme	Present	Non-Uniform	2C	Expression was weak throughout the skeletal and dental mesenchyme. Expression was intense in a few layers of dental mesenchyme cells directly underlying the dental epithelium.

Structure	Level	Pattern	Image	Note
TS21: lower jaw tooth mesenchyme	Present	Regionally restricted	2F	Expression was weak throughout the dental mesenchyme. Expression was intense in a few layers of dental mesenchyme cells directly underlying the dental epithelium.
TS21: lower jaw mesenchyme	Weak	Regionally restricted	2F	Expression was weak throughout the skeletal mesenchyme.

Structure	Level	Pattern	Image	Note
TS22: lower jaw tooth mesenchyme	Present	Regionally restricted	2I	Expression was weak throughout the dental mesenchyme. Expression was intense in a few layers of dental mesenchyme cells directly underlying the dental epithelium.
TS22: lower jaw mesenchyme	Weak	Regionally restricted	2I	Expression was weak throughout the skeletal mesenchyme.

Structure	Level	Pattern	Image	Note
TS24: lower jaw tooth epithelium	Present	Regionally restricted	2L	Expression was weak throughout the dental mesenchyme. Expression was intense in a few layers of dental mesenchyme cells directly underlying the dental epithelium.
TS24: lower jaw mesenchyme	Weak	Regionally restricted	2L	Expression was weak throughout the skeletal mesenchyme.
TS24: cervical loop	Strong	Regionally restricted	2L	Expression was particularly intense in the dental mesenchyme in the cervical loop of continuously growing incisor.

Structure	Level	Pattern	Image	Note
TS26: lower jaw mesenchyme	Weak	Regionally restricted	2O	Expression was weak throughout the skeletal mesenchyme.
TS26: lower jaw tooth mesenchyme	Present		2O
TS26: cervical loop	Strong	Regionally restricted	2O	Expression was particularly intense in the dental mesenchyme in the cervical loop of continuously growing incisor.

Structure	Level	Pattern	Image	Note
TS27: cervical loop	Strong	Regionally restricted	2R	Expression was intense in mesenchymal cells in the cervical loop of the incisor.
TS27: lower jaw incisor	Strong	Regionally restricted	2R	Expression was intense in mesenchymal cells in the cervical loop of the incisor.