ScerGAL4Pdfr.B is expressed throughout the brain, including in some of the clock neurons. It is strongly expressed in the Pdf-positive s-LNv's and three LNd neurons. ScerGAL4Pdfr.B is also weakly expressed in the Pdf-negative s-LNv and two l-LNv neurons.
Scer\GAL4Pdfr.B/PdfrUAS.cMa partially rescues Pdfr3369