- Dr Steve Wilson
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A ventral view of a 60 hours post fertilisation transgenic zebrafish embryo. The embryo has been has been labelled with anti GFP(green) and anti-acetylated tubulin antibody(red) that labels neuronal tracts. This transgenic line Brn3a:GFP expresses GFP in many cells within the brain and neural retina. From this aspect the retinal ganglion cells and their axons which form the optic nerve can be seen projecting to the midline and crossing to travel dorsally and innervate the contralateral optic tectum habenula neurons, neurons in the optic tectum. The sensory neuromast cells are also beautifully labelled, these cells form part of the zebrafish lateral–line system and sense vibration.