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Axon Trapping: Constructing the Visual System One Layer at a Time

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Presentation on theme: "Axon Trapping: Constructing the Visual System One Layer at a Time"— Presentation transcript:

1 Axon Trapping: Constructing the Visual System One Layer at a Time
Tina Schwabe, Thomas R. Clandinin  Neuron  Volume 75, Issue 1, Pages 6-8 (July 2012) DOI: /j.neuron Copyright © 2012 Elsevier Inc. Terms and Conditions

2 Figure 1 Frazzled-Mediated Netrin Capture Directs R8 Axons to Their Target Layer (A) Schemata of the adult Drosophila visual system. (B) Summary of the main findings of Timofeev et al. (2012). Wild-type R7 and R8 axons target to distinct temporary layers at 42% and to their respective target layers, M3 and M6, after 55% of pupal development. When all R cells are Frazzled mutant, R8 axons will fail to reach their final layer, while targeting of R7 is unaffected. (C) Model of Netrin/Fra signaling; only layer M3 is shown. Axons of Lamina neuron L3 secrete Netrin, which is captured by Fra expressed on unknown medulla neurons. Fra on R8 then binds Netrin, which guides its axon toward M3. Neuron  , 6-8DOI: ( /j.neuron ) Copyright © 2012 Elsevier Inc. Terms and Conditions

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