The hsp70 promoter drives expression of a EcoR1 fragment of verm cDNA (N63.1.0) in the antisense orientation.
Heat-shock-induced expression of verma.hs.PM during embryogenesis blocks the outgrowth of primary branches of the dorsal longitudinal tracheal trunks, revealing an alteration in the growth and guidance of tracheols.
Heat-shock-induced expression of verma.hs.PM during pupal development perturbs the optomotor response of adult flies. Increasing the extent of heat shock from 2 to 4 days exacerbates the phenotype.