Fig. S7
- ID
- ZDB-FIG-130123-49
- Publication
- Schweitzer et al., 2013 - Sim1a and Arnt2 contribute to hypothalamo-spinal axon guidance by regulating Robo2 activity via a Robo3-dependent mechanism
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Medial displacement of otpb:gfp-positive longitudinal axons is reduced in robo3 mutants after arnt2 knockdown. Dorsal views of z projections of the hindbrain of 72 hpf embryos labeled with anti-GFP and anti-3A10 antibodies are shown. Anterior is towards the left. (A,B) In twttw204/+;otpb:gfp embryos injected with arnt2 MO otpb:gfp-positive longitudinal axons (arrows in A) grow towards the midline. Midline crossing of Mauthner axons is normal (arrowhead in B). (C,D) After knock down of arnt2 in twttw204/tw204;otpb:gfp embryos, longitudinal axons project in a wildtype manner (arrows in C). Abnormal crossing of Mauthner axons (arrowhead in D) indicates homozygous robo3 mutant. (E) Quantification of the distance of MA neurons and of medio-lateral positioning of otpb:gfp-positive longitudinal axons at the anterior-posterior level of Mauthner neurons and medio-lateral positioning of otpb:gfp vagal axons. *P<0.001, Student′s t-test; n.s., not significant). Scale bar: 50 μm. |