The GMR26H02 enhancer fragment followed by the Drosophila synthetic core promoter (DSCP) is fused upstream of the p65(AD)::Zip+ hemidriver (component of a 'split driver' system, contains the p65 activation domain).
Comment: when combined with P{R29G11-GAL4.DBD}
Comment: when combined with P{R29G11-GAL4.DBD} (combination referred to as 'C3-Gal4')
Silencing of C3 lamina neurons, using Hsap\RELAAD.R26H02.T:Zzzz\Zip+, Scer\GAL4DBD.R29G11.T:Zzzz\Zip- and Hsap\KCNJ2Scer\UAS.T:Avic\GFP-EGFP, abolishes steering responses to regressive motion stimuli moving at high speeds but does not affect responses to progressive motion or basic optomotor stimuli.
Silencing of C3 lamina neurons, using Hsap\RELAAD.R26H02.T:Zzzz\Zip+, Scer\GAL4DBD.R29G11.T:Zzzz\Zip- and Hsap\KCNJ2Scer\UAS.T:Avic\GFP-EGFP, results in enhancement of reverse-optomotor inversion at high speeds.
Silencing of C3 lamina neurons, using Hsap\RELAAD.R26H02.T:Zzzz\Zip+, Scer\GAL4DBD.R29G11.T:Zzzz\Zip- and Hsap\KCNJ2Scer\UAS.T:Avic\GFP-EGFP, affects the ability of flies to distinguish small contrast differences at low test speeds, while behaviour at higher test speeds remains normal.
Split-GAL4 transgene, constructed as described in FBrf0212052.