A FLP/FRT intersectional strategy shows expression of ScerGAL4GMR46F09 in ventrolateral protocerebrum projection neuron 1 when combined with EcollexAfru.P1.
Inhibition (using Ctet\TeTxLCFRT.stop.UAS with Scer\FLP1L.8xlexAop) of neurons expressing Ecol\lexAfru.P1 and Scer\GAL4GMR46F09 significantly reduces male-male courtship chaining responses to pulse song, compared to controls.
Optogenetic activation (using Cnoc\ChR1Cs.20xUAS.FRT.Venus with Scer\FLP1L.8xlexAop and activating with 655 nm (red) light) of neurons expressing Ecol\lexAfru.P1 and Scer\GAL4GMR46F09 significantly increases male-male courtship chaining, compared to controls.