shiunspecified mutant cells are largely unbranched and contain clumps of grossly disorganized apical membrane.
Flies shifted to 30oC show a steady decline in the amplitude of the excitatory postsynaptic potential (EPSP) on repetitive stimulation of the neuromuscular synapse, in contrast to wild-type. This effect is largely reversible if the flies are returned to a permissive temperature (24oC).
Temperature-sensitive mutation.
The temperature at which mutant flies become paralysed is not effected by the temperature at which the flies are raised.
shiunspecified, stnA7 has abnormal behavior phenotype
The developmental focus of the shiunspecified muscle phenotype maps to the ventral thorax at the expected site of the thoracic mesoderm.