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XB-ART-21832
Dev Suppl 1992 Jan 01;:117-24.
Show Gene links Show Anatomy links

The evolution of vertebrate gastrulation.

De Robertis EM , Fainsod A , Gont LK , Steinbeisser H .


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The availability of molecular markers now permits the analysis of the common elements of vertebrate gastrulation. While gastrulation appears to be very diverse in the vertebrates, by analyzing a head-organizer marker, goosecoid, and a marker common to all forming mesoderm, Brachyury, we attempt to identify homologous structures and equivalent stages in Xenopus, zebrafish, chick and mouse gastrulation. Using a tail-organizer marker, Xnot-2, we also discuss how the late stages of gastrulation lead to the formation of the postanal tail, a structure characteristic of the chordates.

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Species referenced: Xenopus
Genes referenced: gsc not tbxt