scutum & macrochaeta, with Scer\GAL4Act5C.PI
scutum & macrochaeta, with Scer\GAL4hs.PB
scutum & macrochaeta, with Scer\GAL4tsh-Gal4-1
sensory mother cell & dorsal mesothoracic disc, with Scer\GAL4hs.PB
sensory mother cell & dorsal mesothoracic disc, with Scer\GAL4tsh-Gal4-1
Flies expressing tkvQ199D.Scer\UAS.cTa under the control of Scer\GAL4tsh-Gal4-1 have more than 7 ectopic macrochaetae per heminotum, on the dorsolateral region of the notum. Thoracic discs from late third instar larvae have numerous ectopic sensory mother cells. The discs are expanded along the anterior/posterior axis. Clones in the notum expressing tkvQ199D.Scer\UAS.cTa under the control of Scer\GAL4Act5C.PI develop additional macrochaetae within the clone. Expression of tkvQ199D.Scer\UAS.cTa under the control of Scer\GAL4hs.PB using heat shock during the early third larval instar stage induces ectopic macrochaetae on the notum. Thoracic discs from late third instar larvae have numerous ectopic sensory mother cells.
wgl-12/wgSp-1 flies lack the anterior dorsocentral bristle. Flies expressing tkvQ199D.Scer\UAS.cTa under the control of Scer\GAL4tsh-Gal4-1 do not have any ectopic dorsocentral bristles, although they have ectopic anterior postalar and posterior supraalar bristles.