Probe:	Mef2a probe1
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS11: embryo	Absent

Structure	Level	Pattern	Image	Note
TS13: heart	Strong

Structure	Level	Pattern	Image	Note
TS15: heart	Present		4C
TS15: somite	Absent		4C
TS15: trunk mesenchyme derived from neural crest	Weak	Regionally restricted	4C	Low levels of expression throughout the lateral mesoderm.
TS15: migrating neural crest	Weak	Regionally restricted	4C	Low levels of expression in neural crest cells migrating away from the neural tube.

Structure	Level	Pattern	Image	Note
TS17: myotome	Present

Structure	Level	Pattern	Image	Note
TS17: dorsal aorta	Present		5C
TS17: heart	Present		5C
TS17: blood vessel	Present	Regionally restricted	5C	Expression in what appear to be blood vessels forming around the neural tube.
TS17: trunk mesenchyme derived from neural crest	Present		5C

Structure	Level	Pattern	Image	Note
TS19: limb mesenchyme	Present	Regionally restricted		Expression in premuscle masses of the limb buds.
TS19: gut	Weak	Regionally restricted		Low levels of expression in cells contributing to smooth muscle of gut.

Structure	Level	Pattern	Image	Note
TS21: skeletal muscle	Strong		8C
TS21: tail mesenchyme derived from neural crest	Present	Regionally restricted	8C	Expresssion in neural crest derivatives in the frontonasal region.
TS21: digit mesenchyme	Present	Regionally restricted	8C	Expression in condensing cartilage in limb digirts.

Structure	Level	Pattern	Image	Note
TS24: skeletal muscle	Strong