Fig. 2

Fig. 2

Expression of klf7 and klf6a in the anterior telencephalon and olfactory bulb of adult zebrafish brain. In the top panels, a schematic drawing of half of the brain section (dorsal side up) processed for klf7 staining is used to indicate major brain structures at this level, which is accompanied by low magnifications of half of the brain sections. Lower panels show higher magnifications of selective brain regions (same orientation) from their respective lower magnified views in the top panels. Similar arrangement is made for most of the subsequent figures. Panels C, D, G and H are higher magnifications of the dorsal halves of their corresponding images in the top panels, while panels E, F, I and J are magnified views of ventral portions of their corresponding images in the top panels. The diagonal arrow in panels A and C indicates a presumptive border region separating two brain regions with different klf7 staining. Horizontal arrowheads in panels A, C and D point to a presumptive border region in deeper brain areas with different klfs expression on either side, while vertical arrowheads in panels C and D indicate a border region in the ventricular layer with different klf staining on either side. The asterisk in panel H indicates an artificial tissue crack. See list for abbreviations. The scale bar (200 µm) in panel A applies to all images in the top panels, while the scale bar (50 µm) in panel C is for all higher magnified images.