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  • Title: Embryonic axon guidance: insights from Drosophila and other insects.
    Author: Evans TA.
    Journal: Curr Opin Insect Sci; 2016 Dec; 18():11-16. PubMed ID: 27939705.
    Abstract:
    During embryonic development, growing axons are guided by cellular signaling pathways that control a series of individual axon guidance decisions. In Drosophila, two major pathways (Netrin-Frazzled/DCC and Slit-Robo) regulate axon guidance in the embryonic ventral nerve cord, including the critical decision of whether or not to cross the midline. Studies in the fruit fly have revealed a complex picture of precise regulation and cross-talk between these pathways. In addition, Robo receptors in Drosophila have diversified their activities to regulate additional axon guidance decisions in the developing embryo. Here, I discuss recent advances in understanding roles and regulation of the Net-Fra and Slit-Robo signaling pathways in Drosophila, and examine the evolutionary conservation of these signaling mechanisms across insects and other arthropods.
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