Probe:	Tgfb1 probe2
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS28: decidua	Strong	Regionally restricted	1A , 1B	Authors report abundant expression in the maternal deciduum.
TS28: decidua capsularis	Present	Regionally restricted	1A , 1B	Gradient across the decidua capsularis, with highest expression near the uterine wall.

Structure	Level	Pattern	Image	Note
TS28: decidua basalis	Present	Regionally restricted	1D , 1E	Expression in the decidua basalis; most intense in the cells lining lacunae.

Structure	Level	Pattern	Image	Note
TS10: yolk sac	Present	Regionally restricted		Expression in the blood islands of the yolk sac.
TS10: allantois	Strong

Structure	Level	Pattern	Image	Note
TS11: yolk sac	Present	Regionally restricted	1G , 1H	Expression evely distributed over all cells of the blood island.

Structure	Level	Pattern	Image	Note
TS13: allantois	Strong

Structure	Level	Pattern	Image	Note
TS15: yolk sac	Strong	Regionally restricted	1I	Intense expression in clusters of cells in the blood islands.

Structure	Level	Pattern	Image	Note
TS20: liver	Present	Regionally restricted		Expression in erythroid progenitors.

Structure	Level	Pattern	Image	Note
TS11: embryo mesoderm	Present	Regionally restricted	2A , 2B	Expression in cardiac mesoderm cells within the head region. Authors state that no other ectodermal, endodermal or mesodermal tissues showed expression.

Structure	Level	Pattern	Image	Note
TS11: embryo mesoderm	Present	Regionally restricted	2E , 2D	Expression in cardiac mesoderm cells within the head region.

Structure	Level	Pattern	Image	Note
TS12: endocardial tube	Present		3B , 3A	Expression in the endocardium.
TS12: cardiac muscle tissue	Absent		3B , 3A	No expression in the myocardium.

Structure	Level	Pattern	Image	Note
TS13: head mesenchyme	Present	Regionally restricted	3D , 3C	Expression in isolated cells within the head mesenchyme.
TS13: endocardial tube	Present	Regionally restricted	3D , 3C	Expression in endocardial cells.

Structure	Level	Pattern	Image	Note
TS13: endocardial tube	Strong	Regionally restricted	3F , 3G	High levels of expression in all endocardial cells.

Structure	Level	Pattern	Image	Note
TS15: embryo	Present	Regionally restricted		Authors report expression in cells immediately adjacent to the neural tube, believed to be capillary endothelial cells undergoing angiogenesis, along the entire axis of the embryo.

Structure	Level	Pattern	Image	Note
TS15: arterial system	Present	Regionally restricted	4A , 4B	Authors report expression in endothelial cells of the major blood vessels, including the internal carotid artery, anterior cardinal veins, and caudal arteries and veins.
TS15: venous system	Present	Regionally restricted	4A , 4B	Authors report expression in endothelial cells of the major blood vessels, including the internal carotid artery, anterior cardinal veins, and caudal arteries and veins.
TS15: anterior cardinal vein	Present		4A , 4B
TS15: internal carotid artery	Present		4A , 4B

Structure	Level	Pattern	Image	Note
TS18: arterial system	Present	Regionally restricted		Expression in truncus venosus and hepatocardiac channel; no expression in the internal carotid artery, anterior cardinal veins, and caudal arteries and veins.
TS18: venous system	Present	Regionally restricted		Expression in truncus venosus and hepatocardiac channel; no expression in the internal carotid artery, anterior cardinal veins, and caudal arteries and veins.
TS18: anterior cardinal vein	Absent			Expression in truncus venosus and hepatocardiac channel; no expression in the internal carotid artery, anterior cardinal veins, and caudal arteries and veins.
TS18: internal carotid artery	Absent			Expression in truncus venosus and hepatocardiac channel; no expression in the internal carotid artery, anterior cardinal veins, and caudal arteries and veins.

Structure	Level	Pattern	Image	Note
TS15: outflow tract	Strong	Regionally restricted	5B , 5A	High expression in the outflow tract.
TS15: common atrial chamber endocardial lining	Absent		5A , 5B	No expression in endocardium overlying the atrial myocardium.

Structure	Level	Pattern	Image	Note
TS15: endocardial cushion	Strong	Regionally restricted	5E , 5D	High levels of expression in endothelium overlying the cushion tissue.
TS15: primitive ventricle endocardial lining	Absent		5E , 5D	No expression in endocardium overlying the ventricular myocardium.

Structure	Level	Pattern	Image	Note
TS15: endocardial cushion	Strong	Regionally restricted	5H , 5G

Structure	Level	Pattern	Image	Note
TS15: heart	Strong	Regionally restricted		High levels of expression in atrioventricular valve region.

Structure	Level	Pattern	Image	Note
TS17: heart	Present	Regionally restricted	5J , 5K

Structure	Level	Pattern	Image	Note
TS17: heart	Present	Regionally restricted	5N , 5M

Structure	Level	Pattern	Image	Note
TS27: atrioventricular valve	Absent		7A , 7B	Authors report no expression in atrioventricular valves.

Structure	Level	Pattern	Image	Note
TS28: aortic valve	Absent		7E , 7D	Authors report no expression in the semilunar valve of the aorta.