Fig. 4.

Gal4FF expression patterns in the brain of 16 transgenic lines that showed a deficit in active avoidance fear conditioning. A summary of GFP expression patterns of the Gal4FF transgenic lines (crossed with the UAS:GFP fish) that showed deficits in active avoidance fear conditioning when crossed with the UAS:zBoTxBLC:GFP fish (Additional file 2: Figures S1 and Additional file 3: and Figure S2). The brain are divided into four major regions (telencephalon, diencephalon, mesencephalon, and rhombencephalon), and further subdivided mainly according to Wullimann et al. [59]. Shadowed boxes indicate regions where GFP expression was detected under an epifluorescence microscope