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Citation
Morisato, D., Anderson, K.V. (1995). Signaling pathways that establish the dorsal-ventral pattern of the Drosophila embryo.  A. Rev. Genet. 29(): 371--399.
FlyBase ID
FBrf0085611
Publication Type
Review
Abstract

The dorsal-ventral pattern of the Drosophila embryo is established by three sequential signaling pathways. Each pathway transmits spatial information by localizing the activity of an extracellular signal, which acts as a ligand for a broadly distributed transmembrane receptor. The components of the first two pathways are encoded by maternal effect genes, while the third pathway is specified by genes expressed in the zygote. During oogenesis, the oocyte transmits a signal to the surrounding follicle cells by the gurken-torpedo pathway. After fertilization, the initial asymmetry of the egg chamber is used by the spƤtzle-Toll pathway to generate within the embryo a nuclear gradient of the transcription factor Dorsal, which regulates the regional expression of a set of zygotic genes. On the dorsal side of the embryo, the decapentaplegic-punt/thick veins pathway then establishes patterning of the amnioserosa and dorsal ectoderm. Each pathway uses a distinct strategy to achieve spatial localization of signaling activity.

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    Language of Publication
    English
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    A. Rev. Genet.
    Title
    Annual Review of Genetics
    Publication Year
    1967-
    ISBN/ISSN
    0066-4197
    Data From Reference