Fig. 2
Trk2b is required for coordinated migration of the primordium and lateral line axons.
Compound transgenic SqET33-mi23/SqKR21 embryos expressing GFP in the lateral line axons and KillerRed in the lateral line primordium and neuromasts. A?C?5-mm-nTrk2b-MO (0.3 pmol): A?30 hpf, B?36 hpf, C?primordium at 36 hpf; D?F?nTrk2b-morphant with the weak phenotype: D?30 hpf, E?36 hpf, F?primordium at 36 hpf; G?I?nTrk2b-morphant with the strong phenotype: G?36 hpf, H?primordium at 36 hpf, I?lateral line axons at 48 hpf. The primordium leading edges are indicated by white arrows and the termini of the lateral line nerves by blue arrows.