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Fig. 6 | Hereditas

Fig. 6

From: Functional analysis of enhancer elements regulating the expression of the Drosophila homeodomain transcription factor DRx by gene targeting

Fig. 6

Expression of enhancer-Gal4 strains in the adult brain. A The genomic organization of the DRx locus is shown together with the location of fragments from the upstream and intronic regions of the DRx locus used to test enhancer activities in the respective Gal4 strains. B-J Views of the right side of Drosophila adult brains. An anti-DRx antibody was used to visualize the nuclear DRx expression pattern in green, and enhancer-Gal4 driven UAS-H2B-mRFP1 expression was used to visualize the patterns generated by the various enhancers in red. The Gal4 strain numbers are indicated, yellow arrowheads indicate important regions showing coexpression of DRx and the fluorescence marker, and red arrowheads denote regions where only the enhancer expression is visible. Abbreviations: AL, antennal lobe; CA, calyx (mushroom bodies); LH, lateral horn; OL, optic lobe; OTU, optic tubercle; PB, protocerebral bridge; PLP, posterior-lateral protocerebrum; SLP, superior-lateral protocerebrum; SMP, superior-medial protocerebrum; SOG, subesophageal ganglion; VL, vertical lobe (mushroom bodies); VMC, ventro-medial cerebrum; VLP, ventro-lateral protocerebrum. (Scale bar: 50 μm)

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