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Fig. 6. DV difference in Lov+ and Ron+ habenular projections
onto the adult IPN. Confocal images of anti-Lov (red) and anti-Ron (green)
double-labeled horizontal sections through adult midbrain of (A-C) WT or (D-F)
left-positioned parapineal and (G-I) right-positioned parapineal fish selected
from spaw MO-injected Tg(foxD3:GFP) embryos and reared
separately. Vibratome sections (150 µm) vary slightly in their coordinates
along anteroposterior axis of the brain, accounting for differences in
immunofluorescent signals. Although intensity of labeling varies between given
sections, DV regionalization of immunoreactive habenular axons at the IPN is
highly stereotypic. Dorsal is at the top in all images. Scale bar: 60
µm.