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Role of Notch Signaling in Leg Development in Drosophila melanogaster

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Notch Signaling in Embryology and Cancer

Part of the book series: Advances in Experimental Medicine and Biology ((AEMB,volume 1218))

Abstract

Notch pathway plays diverse and fundamental roles during animal development. One of the most relevant, which arises directly from its unique mode of activation, is the specification of cell fates and tissue boundaries. The development of the leg of Drosophila melanogaster is a fine example of this Notch function, as it is required to specify the fate of the cells that will eventually form the leg joints, the flexible structures that separate the different segments of the adult leg. Notch activity is accurately activated and maintained at the distal end of each segment in response to the proximo-distal patterning gene network of the developing leg. Region-specific downstream targets of Notch in turn regulate the formation of the different types of joints. We discuss recent findings that shed light on the molecular and cellular mechanisms that are ultimately governed by Notch to achieve epithelial fold and joint morphogenesis. Finally, we briefly summarize the role that Notch plays in inducing the nonautonomous growth of the leg. Overall, this book chapter aims to highlight leg development as a useful model to study how patterning information is translated into specific cell behaviors that shape the final form of an adult organ.

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Correspondence to Sergio Córdoba or Carlos Estella .

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Córdoba, S., Estella, C. (2020). Role of Notch Signaling in Leg Development in Drosophila melanogaster. In: Reichrath, J., Reichrath, S. (eds) Notch Signaling in Embryology and Cancer. Advances in Experimental Medicine and Biology, vol 1218. Springer, Cham. https://doi.org/10.1007/978-3-030-34436-8_7

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