||Fig. 5. XIF3 (A,C) and XNIF (B,D) mRNA distribution in the eye
of stage 51 tadpoles. A,B: Transverse sections through the eye. C,D:
Views at higher magnification of the left retinal ciliary margins.
Arrowheads in A and C mark the farthest extent of labeled retinal
ganglion cells. XIF3 mRNA was restricted to the ciliary margin and
adjacent retinal cells (A,C), whereas XNIF mRNA was found in retinal
ganglion cells throughout the retina (B,D). c, Ciliary margin; i,
inner nuclear layer; p, pigmented retinal epithelium (naturally pigmented
and not labeled); r, retinal ganglion cells layer. Scale bars 5
200 mm in B (also applies to A), 50 mm in D (also applies to C).