... epithelium, is a key determinant of embryonic dorsoventral polarity, suggesting that Pipe-mediated sulfation of a heparan sulfate proteoglycan provides a spatial cue for dorsoventral axis formation. We used several approaches to investigate this possibility in the work described here. We determined...

... for correspondence (e-mail: [email protected] ). 4 3 2004 © 2004. 2004 MAPK phosphatase Dorsoventral polarity Midblastula transition Fibroblast growth factors are a family of over 23 secreted glycosylated proteins that elicit a variety of important processes throughout development...

...Andy J. Chang; Donald Morisato Dorsoventral polarity of the Drosophila embryo requires maternal spätzle-Toll signaling to establish a nuclear gradient of Dorsal protein. The shape of this gradient is altered in embryos produced by females carrying dominant alleles of easter (ea D ) . The easter...

...Par Towb; Andreas Bergmann; Steven A. Wasserman Dorsoventral polarity in the Drosophila embryo is established through a signal transduction cascade triggered in ventral and ventrolateral regions. Activation of a transmembrane receptor, Toll, leads to localized recruitment of the adaptor protein...

... principally by the myotome and sclerotome, respectively. * Author for correspondence 27 02 2000 © 2000 by Company of Biologists 2000 Experimental embryology Chick-quail chimera Dorsoventral polarity Somite Sclerotome Myotome Dermomyotome Paraxial mesoderm Epaxial domain...

... subunit through a cyclic AMP-independent mechanism . Cell 89 , 413 – 424 . Drosophila melanogaster Pelle Tube Toll Dorsoventral polarity autophosphorylation Activation of the cascade that determines dorsal-ventral polarity in the Drosophila embryo requires the activities...

...Par Towb; Rene L. Galindo; Steven A. Wasserman ABSTRACT A signaling pathway initiated by activation of the transmembrane receptor Toll defines dorsoventral polarity in the Drosophila embryo. Toll, which is present over the entire surface of the embryo, is activated ventrally by interaction...

...David N. Edwards; Par Towb; Steven A. Wasserman ABSTRACT A signaling pathway active on the ventral side of the Drosophila embryo defines dorsoventral polarity. A cell surface signal relayed by Toll, Tube and Pelle releases the Rel-related protein Dorsal from its cytoplasmic inhibitor Cactus; free...

... organizer gastrulation epiboly convergence extension zebrafish dorsoventral polarity The vertebrate body plan is established by a series of inductive interactions and cellular rearrangements. Mechanisms under-lying these processes are best understood in amphibia ( Sive, 1993 ; Kessler...

.... * Present address: Cardiovascular Research Institute, University of California, San Francisco, CA 94143-0130 † Present address: Department of Biology, MIT, Cambridge, MA 02139 07 02 1994 © 1994 by Company of Biologists 1994 Spätzle protein Drosophila dorsoventral polarity...

... 03 1987 © 1987 by Company of Biologists 1987 oocyte grey crescent dorsoventral polarity gravity heat shock protein synthesis axolotl Ambystoma mexicanum Acquisition of dorsoventral polarity in amphibian eggs appears to be closely linked to the appearance...

...Sean B. Carroll; Gary M. Winslow; Vern J. Twombly; Matthew P. Scott ABSTRACT At least 13 genes control the establishment of dorsoventral polarity in the Drosophila embryo and more than 30 genes control the anteroposterior pattern of body segments. Each group of genes is thought to control pattern...