Cell shape changes indicate a role for extrinsic tensile forces in Drosophila germ-band extension

@article{Butler2009CellSC,
  title={Cell shape changes indicate a role for extrinsic tensile forces in Drosophila germ-band extension},
  author={Lucy C. Butler and Guy B. Blanchard and Alexandre J. Kabla and Nicola J. Lawrence and David P Welchman and L. Mahadevan and Richard J. Adams and B{\'e}n{\'e}dicte Sanson},
  journal={Nature Cell Biology},
  year={2009},
  volume={11},
  pages={859-864}
}
Drosophila germ-band extension (GBE) is an example of the convergence and extension movements that elongate and narrow embryonic tissues. To understand the collective cell behaviours underlying tissue morphogenesis, we have continuously quantified cell intercalation and cell shape change during GBE. We show that the fast, early phase of GBE depends on cell shape change in addition to cell intercalation. In antero-posterior patterning mutants such as those for the gap gene Krüppel, defective… CONTINUE READING

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