Drosophila Embryo: Cell Signalling and Segmental Patterning
Jean‐Paul Vincent, National Institute for Medical Research, London, UK
Cyrille Alexandre, National Institute for Medical Research, London, UK
Published online: March 2003
DOI: 10.1038/npg.els.0001504
Abstract
Expression of the primary segment polarity genes wingless and hedgehog establishes a signalling centre at each parasegment boundary of the Drosophila embryo. As a result, epidermal cells within each segment acquire a specific fate and polarity along the anterior–posterior
axis.
Keywords: epidermal patterning; wingless; hedgehog; engrailed; cell signalling
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