Allocation of the thoracic imaginal primordia in the Drosophila embryo.

  title={Allocation of the thoracic imaginal primordia in the Drosophila embryo.},
  author={Bernard Cohen and A A Simcox and Stephen Michael Cohen},
  volume={117 2},
The primordia of the thoracic imaginal discs of the Drosophila embryo originate as groups of cells spanning the parasegment boundary. We present evidence that the thoracic imaginal primordia are allocated in response to signals from the wingless (wg) and decapentaplegic (dpp) gene products. Rows of cells that express wg intersect rows of cells that express dpp to form a ladder-like pattern in the ectoderm of the germ band extended embryo. The imaginal primordia originate as groups of cells… CONTINUE READING
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