Probe:	R-spondin2 probe1
Probe preparation:	labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS17: oral region	Present	Regionally restricted	1F	Expression in presumptive molar tooth mesenchyme.

Structure	Level	Pattern	Image	Note
TS19: branchial arch mesenchyme	Strong	Regionally restricted	1G	Strong expression in aboral side of first branchial arch mesenchyme.

Structure	Level	Pattern	Image	Note
TS21: molar mesenchyme	Present	Regionally restricted	1H	Expression in mesenchyme lingual to molar tooth bud epithelium.

Structure	Level	Pattern	Image	Note
TS22: molar dental papilla	Present		1I

Structure	Level	Pattern	Image	Note
TS26: molar enamel organ	Present	Regionally restricted	1J	Expression in ameloblasts at presumptive cust region.
TS26: molar dental papilla	Present	Regionally restricted	1J	Expression in dental papillae cells facing apical tooth epithelium.

Structure	Level	Pattern	Image	Note
TS26: incisor dental papilla	Present	Widespread	3B	Expression in entire incisor developing dental pulp extending to cervical loop area.

Structure	Level	Pattern	Image	Note
TS20: jaw	Present	Regionally restricted	7G	Authors report there was no expression corresponding to location of extra tooth formation in Rspo2 mutants.

Structure	Level	Pattern	Image	Note
TS21: jaw	Present	Regionally restricted	7H	Authors report there was no expression corresponding to location of extra tooth formation in Rspo2 mutants.