Probe:	Marp probe
Probe preparation:	Antisense labelled with digoxigenin RNA

Structure	Level	Pattern	Image	Note
TS28: gastrocnemius muscle	Absent		3A Control Mrarp

Structure	Level	Pattern	Image	Note
TS28: heart atrium	Strong		3C control
TS28: heart ventricle	Weak		3C control

Structure	Cell Type	Level	Pattern	Image	Note
TS28: heart ventricle	cardiac muscle cell	Strong		3C -/-	Cardiac hypertrophy led to massive induction of expression in ventricular cardiomyocytes.
TS28: heart atrium		Strong		3C -/-	Atrial expression was much less affected by the cardiac hypertrophy in the mutant.

Structure	Level	Pattern	Image	Note
TS19: myotome	Present		5A MARP left

Structure	Level	Pattern	Image	Note
TS19: forelimb bud	Absent		5A MARP right

Structure	Cell Type	Level	Pattern	Image	Note
TS22: muscle tissue	myotube	Present	Regionally restricted	5B top MARP , 5B middle MARP	Transcript was detected at end regions of primary myotube clusters.

Structure	Cell Type	Level	Pattern	Image	Note
TS22: intercostal muscle	myotube	Present		5B bottom MARP left , 5B bottom MARP right	Transcript was detected at end regions of primary myotube clusters.

Structure	Cell Type	Level	Pattern	Image	Note
TS22: facial muscle	myotube	Present	Regionally restricted	6_left	Signal was restricted to the end regions of the primary myotube bundles.

Structure	Cell Type	Level	Pattern	Image	Note
TS22: facial muscle	myotube	Present	Regionally restricted	6_right	Signal was restricted to the end regions of the primary myotube bundles.

Structure	Cell Type	Level	Pattern	Image	Note
TS20: skeletal muscle	myotube	Present	Regionally restricted	7E12.5 left	Transcript was detected at end regions of skeletal muscle during muscle morphogenesis.

Structure	Cell Type	Level	Pattern	Image	Note
TS21: skeletal muscle	myotube	Present	Regionally restricted	7E13.5 left	Transcript was detected at end regions of skeletal muscle during muscle morphogenesis.

Structure	Cell Type	Level	Pattern	Image	Note
TS23: foot muscle	myotube	Present	Regionally restricted	7E15.5 left	Transcript was detected at end regions of skeletal muscle during muscle morphogenesis.

Structure	Cell Type	Level	Pattern	Image	Note
TS25: hand muscle	myotube	Ambiguous		7E17.5 left	Transcript at end region was strongly downregulated at E17.5, and was absent from most muscles.

Structure	Cell Type	Level	Pattern	Image	Note
TS22: pectoral girdle and thoracic body wall musculature	myotube	Present	Regionally restricted	8_middle	Expression was detected in muscle ends.

Structure	Cell Type	Level	Pattern	Image	Note
TS23: neck muscle	myotube	Present	Regionally restricted	9A E15.5 middle	Expression was in primary myotube ends.

Structure	Level	Pattern	Image	Note
TS25: neck muscle	Absent		9A E17.5 middle

Structure	Cell Type	Level	Pattern	Image	Note
TS21: intercostal muscle	myotube	Present	Regionally restricted	9B E13.5 middle	Expression was detected at the ends of primary myotubes.

Structure	Cell Type	Level	Pattern	Image	Note
TS23: intercostal muscle	myotube	Present	Regionally restricted	9B E15.5 middle	Expression was detected at the ends of primary myotubes.