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. Author manuscript; available in PMC: 2011 Apr 19.
Published in final edited form as: Nat Rev Neurosci. 2010 May;11(5):316–328. doi: 10.1038/nrn2836

Figure 1. Mechanisms regulating the formation and organization of dendritic arbors of dendritic arborization neurons in Drosophila melanogaster.

Figure 1

Dendrites of the same neuron spread out by avoiding one another (self-avoidance). Moreover, dendrites of certain types of neurons such as class III and class IV dendritic arborization neurons avoid dendrites of neighbouring neurons of the same type (tiling), whereas dendrites of different neuronal types can cover the same territory (coexistence). Many factors shape the morphology of a dendritc arbor (top panel), including transcription factors, regulators of microtubules and actins (the primary cytoskeletal elements for major dendritic branches and terminal dendritic branches, respectively), Golgi outposts and signalling molecules such as Hippo and Tricornered (TRC) that mediate dendrite–dendrite interactions.