· Males from each GAL4 line were crossed to females homozygous for the pJFRCXUAS-IVS-mCDGFP reporter inserted at attP2 (Pfeiffer et al., ) and 3–5 day old female adults heterozygous for the GAL4 driver and UAS reporter were dissected. Dissections were performed using Leica MZ www.doorway.ru by: For all GAL4 driver lines, we characterized the number of DA neurons labeled in each cluster (Table S1) and, as discussed below, we annotated the individual DA cells within each cluster for Split GAL4 combina-tions. As shown in Figure S2, these GAL4 lines exhibited no or sparse expression in DA neurons in the ventral nerve cord (VNC). 11 Method 2: The Drosophila UAS/GAL4 Expression System. The standard expression system used in Drosophila is the bipartite GAL4–UAS system first described by Brand and Perrimon (). This elegant and robust approach relies on the availability of so-called GAL4 driver lines.
TH-GAL4 specifically expresses in dopaminergic cells in embryos, larval CNS, and adult brain when introduced into the Drosophila genome. As a first application of this driver, we observed that in vivo inhibition of DA release induces a striking hyperexcitability behavior in adult flies. mating it with distinct GAL4 drivers. Since expression of the responder is dependent on the GAL4 pattern of the driver, Brand and Perrimon cleverly took advantage of the enormous diversity of genomic regulatory sequences and the vigor of the Drosophila community by con-structing an enhancer-trap GAL4 construct (pGAWB, Fig. 2). For all GAL4 driver lines, we characterized the number of DA neurons labeled in each cluster (Table S1) and, as discussed below, we annotated the individual DA cells within each cluster for Split GAL4 combinations. As shown in Figure S2, these GAL4 lines exhibited no or sparse expression in DA neurons in the ventral nerve cord (VNC).
Apr In both Drosophila and mammals, there are relatively few DA neurons Figure 1Expression Patterns of the Founder DA GAL4 Driver Lines. The driver line used for the starvation resistance assay was the da-GAL4 line. Five- to seven-days-old male flies were subjected to starvation in drosophila. Here, we surveyed the expression patterns of commonly used Gal4 drivers in adult Ranganayakulu, G.,; D. A. Elliott,; R. P. Harvey, and; E. N. Olson.
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