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Fig. 2. ISH of RH2 opsin probes to transverse sections of zebrafish eyes.
(AC) Serial eye sections at 16 dpf hybridized with the RH2-1
3'-UTR (A), RH2-2 3'-UTR (B) and RH2-4 CDR (C)
probes. Double arrows in (A) and (B) indicate the areas where the expression
of RH2-1 and RH2-2 are disappearing, respectively. Arrows in
(C) indicate the scarce hybridization signals detected for
RH2-3/RH2-4. (DF) Serial eye sections at 1 month pf
hybridized with RH2-1 3'-UTR (D), RH2-2 3'-UTR
(E) and RH2-4 CDR (F) probes. The single stars, double stars, and
triple stars are position markers showing their corresponding locations
between sections. (GH) Serial sections at 2 years pf hybridized with
the RH2-1 3'-UTR (G), RH2-2 3'-UTR (H) and
RH2-4 3'-UTR (I) probes. Arrowheads in (H) and (I) point to the
same location between the sections. An arrow in (I) indicates the
hybridization signal of RH2-4 at ciliary marginal zone. In all
panels, the dorsal side is to the top and ventral is to the bottom. Scale
bars, 50 µm (AF) or 200 µm (GI).