732bp deletion that spans the translation initiation codon common to the C and D isoforms of TrpA1, preventing expression of these two isoforms. Sequence encoding a GAL4 driver and a w+mW.hs marker have been inserted in place of the deleted sequence. The GAL4 driver acts as a reporter of expression of the TrpA1 C and D isoforms.
TrpA1-CD-G4 mutant larvae do not have reduced rolling (escape) behavior in response to noxious temperature increases, compared to controls.
TrpA1CD-G4 homozygous mutant third instar larvae show impaired temperature selection and unlike controls display no strong preference for cooler temperatures (18[o]C) in a temperature gradient.