Gastrulation in the sea urchin embryo: A model system for analyzing the morphogenesis of a monolayered epithelium

@article{Kominami2004GastrulationIT,
  title={Gastrulation in the sea urchin embryo: A model system for analyzing the morphogenesis of a monolayered epithelium},
  author={Tetsuya Kominami and Hiromi Takata},
  journal={Development},
  year={2004},
  volume={46}
}
Processes of gastrulation in the sea urchin embryo have been intensively studied to reveal the mechanisms involved in the invagination of a monolayered epithelium. It is widely accepted that the invagination proceeds in two steps (primary and secondary invagination) until the archenteron reaches the apical plate, and that the constituent cells of the resulting archenteron are exclusively derived from the veg2 tier of blastomeres formed at the 60‐cell stage. However, recent studies have shown… 
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FGF signals guide migration of mesenchymal cells, control skeletal morphogenesis and regulate gastrulation during sea urchin development
TLDR
The FGF signaling pathway is identified as an essential regulator of gastrulation and directed cell migration in the sea urchin embryo and as a key player in the gene regulatory network directing morphogenesis of the skeleton.
Morphological diversity of blastula formation and gastrulation in temnopleurid sea urchins
TLDR
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Mechanical and genetic control of ascidian endoderm invagination during gastrulation.
TLDR
How embryonic mechanics can be represented is introduced, before outlining current knowledge of the mechanical and genetic control of gastrulation in ascidians, invertebrate marine chordates which develop with invariant cell lineages and a solid-like rheological behaviour until the neurula stages.
RhoA regulates initiation of invagination, but not convergent extension, during sea urchin gastrulation.
TLDR
The results support the hypothesis that RhoA serves as a trigger to initiate invagination, and once initiation occurs, RHoA activity is no longer involved in subsequent gastrulation movements.
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
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Regionalized Cell Division during Sea Urchin Gastrulation Contributes to Archenteron Formation and Is Correlated with the Establishment of Larval Symmetry
TLDR
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TLDR
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