Tip recordings were performed in response to 50 mM CaCl2.
(A—C) Mean responses of sensilla from Ir25a2, Ir62a1 or Ir76b1, or the mutants expressing the genomic rescue transgene (g[Ir25a]) or a UAS-cDNA rescue transgene under control of the indicated GAL4s. n=10—26.
(D) Representative traces showing Ca2+-induced action potentials.
Error bars represent SEMs. The black and red asterisks indicate significant differences from the controls and the mutants, respectively (**P<0.01, *P<0.05), using single factor ANOVA with Scheffe’s post hoc test to compare two sets of data.