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Current Genomics


ISSN (Print): 1389-2029
ISSN (Online): 1875-5488

Time Space Translation: A Hox Mechanism for Vertebrate A-P Patterning

Author(s): A. J. Durston, S. Wacker, N. Bardine and H. J. Jansen

Volume 13, Issue 4, 2012

Page: [300 - 307] Pages: 8

DOI: 10.2174/138920212800793375

Price: $65


The vertebrate A-P axis is a time axis. The head is made first and more and more posterior levels are made at later and later stages. This is different to the situation in most other animals, for example, in Drosophila. Central to this timing is Hox temporal collinearity (see below). This occurs rarely in the animal kingdom but is characteristic of vertebrates and is used to generate the primary axial Hox pattern using time space translation and to integrate successive derived patterns (see below). This is thus a different situation than in Drosophila, where the primary pattern guiding Hox spatial collinearity is generated externally, by the gap and segmentation genes.

Keywords: Colinearity, Gastrulation, Hox, Metagene, Time Space Translation, Xenopus, segmentation genes, primary axial, genomic complexes, somitogenesis, morphogenesis

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