Probe:	Tbeta4 cDNA
Probe preparation:	Antisense labelled with P33 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS20: hyaloid vascular plexus	Strong		3A/B	Expressed in the hyaloid vessels and associated cells.
TS20: lens vesicle	Absent		3A/B
TS20: retina	Absent		3A/B

Structure	Level	Pattern	Image	Note
TS15: dorsal aorta endothelium	Strong		3C/F
TS15: blood	Strong		3C/F	Positive cells with rounded or kidney-shaped nuclei and basophilic cytoplasm.
TS15: trunk mesenchyme	Strong	Regionally restricted	3C/F	Expressed in mesenchyme surrounding the dorsal aorta.
TS15: mesonephric tubule	Weak		3C/F	Very low expression in the mesonephric tubules and red blood cells.
TS15: endocardial lining	Present		3C/F	Expression was much stronger than in the myocardium and similar to that found in blood vessels.
TS15: cardiac muscle tissue	Present		3C/F

Structure	Level	Pattern	Image	Note
TS19: cardiac muscle tissue	Strong		3D/E
TS19: mandibular process	Strong		3D/E
TS19: outflow tract endocardial cushion	Strong		3D/E
TS19: pericardium	Strong		3D/E
TS19: ventricle endocardial lining	Strong		3D/E

Structure	Level	Pattern	Image	Note
TS20: brain blood vessel	Present		3G/H
TS20: hindbrain	Present		3G/H

Structure	Level	Pattern	Image	Note
TS17: cardiac muscle tissue	Moderate
TS17: endocardial cushion	Strong