Probe:	Raldh3 cDNA
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS20: main bronchus epithelium	Weak
TS20: olfactory epithelium	Present	Regionally restricted		Expression in part of the olfactory epithelium.
TS20: nasal mesenchyme	Present	Regionally restricted		Expression in mesenchymal cells underlying the nasal turbinates.
TS20: skeletal muscle	Weak			Authors report low level of expression in developing muscles.

Structure	Level	Pattern	Image	Note
TS22: main bronchus epithelium	Weak		1C
TS22: olfactory epithelium	Present	Regionally restricted	1C	Expression in part of the olfactory epithelium.
TS22: nasal mesenchyme	Present	Regionally restricted	1C	Expression in mesenchymal cells underlying the nasal turbinates.
TS22: skeletal muscle	Weak		1C	Authors report low level of expression in developing muscles.

Structure	Level	Pattern	Image	Note
TS22: genitourinary system epithelium	Strong	Regionally restricted	1F
TS22: tongue muscle	Present		1F

Structure	Level	Pattern	Image	Note
TS23: skeletal muscle	Present			Authors report expression in other developing muscles.

Structure	Level	Pattern	Image	Note
TS24: metanephros	Present	Regionally restricted	2D
TS24: liver	Absent		2D

Structure	Level	Pattern	Image	Note
TS24: collecting duct	Present		2D inset

Structure	Level	Pattern	Image	Note
TS24: small intestine lamina propria	Present		2H
TS24: large intestine lamina propria	Absent		2H

Structure	Level	Pattern	Image	Note
TS28: papillary duct	Present		2K	Expression persisted in the collecting duct of the renal papilla.
TS28: renal medulla	Present		2K

Structure	Level	Pattern	Image	Note
TS28: adrenal medulla	Present		2K inset

Structure	Level	Pattern	Image	Note
TS28: male reproductive system epithelium	Present	Regionally restricted	2P	Expression restricted to part of the genital epithelia, likely to be the developing coagulating glands and/or seminal vesicles.

Structure	Level	Pattern	Image	Note
TS24: nasal epithelium	Ambiguous		4D	Authors report epithelial expression mostly downregulated by E16.5.
TS24: vomeronasal organ mesenchyme	Absent		4D

Structure	Level	Pattern	Image	Note
TS28: nose	Ambiguous		4H

Structure	Level	Pattern	Image	Note
TS24: neural retina	Present		5D
TS24: telencephalon	Present	Regionally restricted	5D	Expression in cells extending along each side of the lateral ventricle septal fork, especially towards the striatum.

Structure	Level	Pattern	Image	Note
TS24: dental sac	Present	Regionally restricted	5K
TS24: upper jaw molar mesenchyme	Present	Regionally restricted	5K
TS24: tooth epithelium	Present	Regionally restricted	5K	Expression in epithelial loop separting the inner and outer dental epithelium.

Structure	Level	Pattern	Image	Note
TS24: dental sac	Present	Regionally restricted	5L
TS24: lower jaw incisor mesenchyme	Present	Regionally restricted	5L
TS24: tooth epithelium	Present	Regionally restricted	5L	Expression in epithelial loop separting the inner and outer dental epithelium.

Structure	Level	Pattern	Image	Note
TS28: upper jaw incisor dental papilla	Present	Regionally restricted	5P	Expression in central areas of the incisor papilla mesenchyme.

Structure	Level	Pattern	Image	Note
TS28: eye	Present	Regionally restricted		Expression at the retina/iris junction.
TS28: molar dental papilla	Absent
TS28: hair inner root sheath	Present			Expression at the base of hair follicles, most likely in the inner epidermal root sheath.

Structure	Level	Pattern	Image	Note
TS28: cerebral cortex	Present	Regionally restricted	6D	Specific expression in the superficial layer of the posterior cerebral cortex.