منابع مشابه
03-P083 Mechanics of zebrafish epiboly
ated nerves and leads to corneal abnormalities. Pax6 expression was observed in a subset of cells in the mouse maxillomandibular trigeminal placode and the ganglion. This expression has never been described previously. A possible specific role of Pax6 in trigeminal ganglion development was hypothesised. The trigeminal ganglion is formed in Pax6 / mice, and analysis of the trigeminal nerve major...
متن کاملThe zebrafish epiboly mutants.
Epiboly, the enveloping of the yolk cell by the blastoderm, is the first zebrafish morphogenetic movement. We isolated four mutations that affect epiboly: half baked, avalanche, lawine and weg. Homozygous mutant embryos arrest the vegetal progress of the deep cells of the blastoderm; only the yolk syncytial layer of the yolk cell and the enveloping layer of the blastoderm reach the vegetal pole...
متن کامل03-P005 Zebrafish epiboly as a model of vertebrate embryonic cell rearrangement
model in which cytoskeletal dynamics can be analysed with the wide range of genetic strategies and tools available for Drosophila. Morphological features and cytoskeletal dynamics closely resemble those of vertebrate GCs, suggesting this model to be of high translatable value. We will report subcellular roles of the actin-microtubule linker molecule Short stop (Shot; homologue of ACF7 and BPAG1...
متن کاملPolarized cortical tension drives zebrafish epiboly movements.
The principles underlying the biomechanics of morphogenesis are largely unknown. Epiboly is an essential embryonic event in which three tissues coordinate to direct the expansion of the blastoderm. How and where forces are generated during epiboly, and how these are globally coupled remains elusive. Here we developed a method, hydrodynamic regression (HR), to infer 3D pressure fields, mechanica...
متن کاملCell movements during epiboly and gastrulation in zebrafish.
Beginning during the late blastula stage in zebrafish, cells located beneath a surface epithelial layer of the blastoderm undergo rearrangements that accompany major changes in shape of the embryo. We describe three distinctive kinds of cell rearrangements. (1) Radial cell intercalations during epiboly mix cells located deeply in the blastoderm among more superficial ones. These rearrangements ...
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ژورنال
عنوان ژورنال: Mechanisms of Development
سال: 2009
ISSN: 0925-4773
DOI: 10.1016/j.mod.2009.06.136