Fig. 1 no expression

Fig. 2 adaxial cells

Fig. 3 somites, median fin fold

Fig. 4 heart, myotomes (fast muscle fibers)

Fig. 5 heart, myotomes (fast muscle fibers)

Fig. 6 basal level of expression
myotomes, pectoral fin muscles, hypaxial muscles

Fig. 7 myotomes, head muscles, intestinal muscles, swim bladder
Please note that in 5 day old embryos some structures are not accessible to the probe (such as notochord, most of the trunk and tail). Therefore the description of the expression pattern is only partial.