Nodal signaling activates differentiation genes during zebrafish gastrulation

Bennett, James T. and Joubin, Katherine and Cheng, Simon and Aanstad, Pia and Herwig, Ralf and Clark, Matthew and Lehrach, Hans and Schier, Alexander F.. (2007) Nodal signaling activates differentiation genes during zebrafish gastrulation. Developmental Biology, 304 (2). pp. 525-540.

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Official URL: https://edoc.unibas.ch/74862/

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Nodal signals induce mesodermal and endodermal progenitors during vertebrate development. To determine the role of Nodal signaling at a genomic level, we isolated Nodal-regulated genes by expression profiling using macroarrays and gene expression databases. Putative Nodal-regulated genes were validated by in situ hybridization screening in wild type and Nodal signaling mutants. 46 genes were identified, raising the currently known number of Nodal-regulated genes to 72. Based on their expression patterns along the dorsoventral axis, most of these genes can be classified into two groups. One group is expressed in the dorsal margin, whereas the other group is expressed throughout the margin. In addition to transcription factors and signaling components, the screens identified several new functional classes of Nodal-regulated genes, including cytoskeletal components and molecules involved in protein secretion or endoplasmic reticulum stress. We found that x-box binding protein-1 (xbp1) is a direct target of Nodal signaling and required for the terminal differentiation of the hatching gland, a specialized secretory organ whose specification is also dependent on Nodal signaling. These results indicate that Nodal signaling regulates not only specification genes but also differentiation genes.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Growth & Development > Cell and Developmental Biology (Schier)
UniBasel Contributors:Schier, Alexander F
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:18 Dec 2020 14:57
Deposited On:18 Dec 2020 14:57

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