Fig. 5From: Involvement of Slit–Robo signaling in the development of the posterior commissure and concomitant swimming behavior in Xenopus laevis Morphology of axonal tracts and Xlslit2 expression domain in the neural tube. Dorsal (a-c) and lateral (d-f) view of the developing Xenopus larva at stage 42. (A’-F’) High-magnification images of white squares in A-F. a, c Transcripts of Xlslit2. Xlslit2 mRNA is discontinuously expressed in the dorsal diencephalon. The anterior limit of Xlslit2 attach to the superficial region of the brain (arrow in D). b, e Axons in the CNS are visualized by immunohistochemistry (shown in green). Habenular and posterior commissures are visible. c, f Merged image of Xlslit2 (purple) and nerves (green). The anterior end of the PC corresponds to the anterior limit of Xlslit2 expression domain (arrow in F). Scale bars: 100 μmBack to article page