Reporter:	lacZ
	Direct Detection

Structure	Level	Pattern	Image	Note
TS20: oral region mesenchyme	Present	Regionally restricted	1A	Expression in mesenchyme adjacent to oral epithelium as well as in salivary gland condensed mesenchyme facing tip of epithelial bud of submandibular gland, on lingual side of gland.

Structure	Level	Pattern	Image	Note
TS21: submandibular gland primordium mesenchyme	Present	Regionally restricted	1B	Expression restricted to salivary gland condensed mesenchyme. Expression in mesenchyme facing the submandibular gland and surrounding submandibular gland
TS21: sublingual gland primordium mesenchyme	Present	Regionally restricted	1B	Expression in mesenchyme surrounding sublingual gland main ducts. No expression in mesenchyme facing the sublingual gland.

Structure	Level	Pattern	Image	Note
TS21: salivary gland epithelium	Absent		1C	No expression in salivary gland epithelial structures.

Structure	Level	Pattern	Image	Note
TS22: submandibular gland primordium mesenchyme	Present	Regionally restricted	1D	Expression in mesenchyme facing submandibular gland.
TS22: sublingual gland primordium mesenchyme	Present	Regionally restricted	1D	Strong expression in the mesenchyme surrounding the main duct of the sublingual gland. No expression in mesenchyme facing the sublingual gland.
TS22: sublingual gland primordium epithelium	Present		1D	Expression also present in epithelium.
TS22: submandibular gland primordium epithelium	Present		1D	Expression also present in epithelium.

Structure	Level	Pattern	Image	Note
TS22: sublingual gland primordium mesenchyme	Strong	Regionally restricted	1E	Strong expression in mesenchyme surrounding main duct of sublingual gland.
TS22: submandibular gland primordium mesenchyme	Weak	Regionally restricted	1E	Expression downregulated in mesenchyme surrounding submandibular gland main duct.
TS22: submandibular gland primordium epithelium	Strong	Regionally restricted	1E	Expression up-regulated in epithelium of submandibular gland main duct.

Structure	Level	Pattern	Image	Note
TS22: sublingual gland primordium mesenchyme	Weak	Regionally restricted	1F	Expression dowregulated in mesenchyme surrounding sublingual gland main duct.
TS22: sublingual gland primordium epithelium	Strong	Regionally restricted	1F	Expression up-regulated in epithelium of sublingual main duct.

Structure	Level	Pattern	Image	Note
TS23: salivary gland epithelium	Present	Regionally restricted	1G	Expression in epithelium spread from main ducts to smaller duct. Nascent lumina lined by epithelial cells were devoid of expression.

Structure	Level	Pattern	Image	Note
TS26: sublingual gland	Strong	Regionally restricted	1H	Strong expression throughout ducts of both glands. No expression in acini.
TS26: submandibular gland	Strong	Regionally restricted	1H	Strong expression throughout ducts of both glands. No expression in acini.

Structure	Level	Pattern	Image	Note
TS26: salivary gland	Strong	Regionally restricted	1I	Strong expression throughout ducts of both glands. No expression in acini.

Structure	Level	Pattern	Image	Note
TS26: salivary gland	Strong	Regionally restricted	1J	Strong expression throughout ducts of both glands. No expression in acini.

Structure	Level	Pattern	Image	Note
TS26: salivary gland	Present	Regionally restricted	1K	Some intercalated duct visibly devoid of expression.

Structure	Level	Pattern	Image	Note
TS26: salivary gland mesenchyme	Present	Regionally restricted	1L	Expression in mesenchyme surrounding ducts, including flat cells lining walls of ducts as well as loose mesenchyme at periphery.

Structure	Level	Pattern	Image	Note
TS26: salivary gland mesenchyme	Present	Regionally restricted	1M	Expression in mesenchyme surrounding ducts, including flat cells lining walls of ducts as well as loose mesenchyme at periphery.