Control of compartmental affinity boundaries by Hedgehog

  title={Control of compartmental affinity boundaries by Hedgehog},
  author={Isabel Rodr{\'i}guez and Konrad Basler},
In Drosophila, each segmental primordium is subdivided into two cell populations, the anterior (A) and posterior (P) compartments by the selective activity of the transcription factor Engrailed (En) in P cells. Under En control, P cells secrete, but cannot respond to, the signalling protein Hedgehog (Hh). In contrast, and by default, A cells are programmed to respond to Hh by expressing other signalling molecules, such as Decapentaplegic (Dpp) and Wingless (Wg), which organize growth and… CONTINUE READING

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