Probe:	myocardin probe1
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS15: branchial arch artery	Present		3A
TS15: common atrial chamber	Present		3A
TS15: primitive ventricle	Present		3A
TS15: dorsal aorta	Absent		3A

Structure	Level	Pattern	Image	Note
TS17: common atrial chamber	Present		3B
TS17: outflow tract	Present		3B
TS17: primitive ventricle	Present		3B
TS17: dorsal aorta	Absent		3B
TS17: 3rd arch artery	Trace	Regionally restricted	3B	Authors report faint expression, above background levels, in third branchial arch artery near its communication with aorta.

Structure	Level	Pattern	Image	Note
TS19: cardinal vein	Present		3C
TS19: heart atrium	Present		3C
TS19: heart ventricle	Present		3C
TS19: outflow tract	Present		3C
TS19: dorsal aorta	Weak		3C	Authors report low but detectable levels in dorsal aorta.
TS19: bronchus	Present		3C	Expression in primitive bronchi.

Structure	Level	Pattern	Image	Note
TS20: dorsal aorta	Present		3D
TS20: heart atrium	Present		3D
TS20: heart ventricle	Present		3D
TS20: intestine	Present	Regionally restricted	3D	Expression in muscularis mucosa layer of stomach and intestine.
TS20: stomach	Present	Regionally restricted	3D	Expression in muscularis mucosa layer of stomach and intestine.
TS20: lung	Present	Regionally restricted	3D	Expression in primitive lung bud, restricted to presumptive bronchial smooth muscle cells.

Structure	Level	Pattern	Image	Note
TS22: dorsal aorta	Present		3E
TS22: esophagus	Present		3E
TS22: heart atrium	Present		3E
TS22: heart ventricle	Present		3E
TS22: intestine	Present		3E

Structure	Level	Pattern	Image	Note
TS22: bronchus	Present
TS22: stomach	Present
TS22: genitourinary system	Strong	Regionally restricted		Intense expression in urogenital ridge.

Structure	Level	Pattern	Image	Note
TS24: heart	Present	Widespread		Expression throughout heart.
TS24: arterial blood vessel	Present	Regionally restricted		Authors report expression in major arteries.
TS24: lung	Present	Regionally restricted		Expression in presumptive visceral smooth muscle cells in trachea and lung
TS24: trachea	Present	Regionally restricted		Expression in presumptive visceral smooth muscle cells in trachea and lung
TS24: esophagus muscularis	Present			Expression in presumptive visceral smooth muscle cells in esophagus and stomach.
TS24: stomach muscularis externa	Present			Expression in presumptive visceral smooth muscle cells in esophagus and stomach.

Structure	Level	Pattern	Image	Note
TS24: colon	Present		3F
TS24: rectum	Present		3F
TS24: small intestine	Present		3F
TS24: bladder	Present	Regionally restricted	3F	Expression in muscular wall of bladder.