Figure 2.

The development of the flight system is not impaired in TβH mutant flies. a shows the mean wing-beat amplitudes for wild-type (WT; light gray bar) and TβH mutant (tbh; dark gray bar) flies. b shows the mean wing-beat frequencies for wild-type (WT; light gray bar) and TβH mutant (tbh; dark gray bar) flies. c shows representative fields of view of DLM flight muscle fibers with phalloidin-labeled actin bands for wild-type (WT), TβH mutant (tbh), and TβH mutant flies that were fed with octopamine (tbh OA). d shows the mean sarcomere lengths for the three groups shown in c. Numbers in bars indicate numbers of animals. Error bars are SEMs. n.s., Not significant.