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Gene regulation during Drosophila eggshell patterning.

George Pyrowolakis1, Ville Veikkolainen1, Nir Yakoby2

  • 1BIOSS Centre for Biological Signalling Studies and Institute for Biology I, Albert-Ludwigs University of Freiburg, 79104 Freiburg, Germany.

Proceedings of the National Academy of Sciences of the United States of America
|June 7, 2017
PubMed
Summary
This summary is machine-generated.

The Drosophila eggshell is a model for understanding how gene regulation and 3D epithelial morphogenesis create complex structures. Cis-regulatory changes and inductive signals drive evolutionary changes in eggshell patterns.

Keywords:
dynamicsenhancerevolutionnetworksignal

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Area of Science:

  • Developmental Biology
  • Genetics
  • Evolutionary Biology

Background:

  • Complex 3D structures form from epithelial sheets patterned by inductive cues and transcription factors.
  • Cis-regulatory regions interpret gene activities for cell differentiation and tissue morphogenesis.
  • Limited experimental models exist to study these processes in detail.

Purpose of the Study:

  • To review insights from Drosophila eggshell patterning on multiscale mechanisms connecting gene regulation and 3D epithelial morphogenesis.
  • To emphasize how cis-regulatory regions aid in analyzing spatiotemporal dynamics and evolutionary diversification.
  • To explore the roles of cis-regulatory changes and inductive signals in Drosophila eggshell evolution.

Main Methods:

  • Review of existing literature on Drosophila eggshell patterning.
  • Analysis of cis-regulatory regions within the eggshell patterning network.
  • Evaluation of spatiotemporal dynamics and evolutionary diversification.

Main Results:

  • Drosophila eggshell patterning provides unique insights into gene regulation and morphogenesis.
  • Identification of cis-regulatory regions enables mechanistic analysis of spatiotemporal dynamics.
  • Cis-regulatory changes explain some morphological diversity (e.g., dorsal appendages).
  • Changes in inductive signals explain other variations (e.g., eggshell ridges).

Conclusions:

  • Both cis-regulatory changes and altered inductive signals contribute to Drosophila eggshell evolution.
  • The Drosophila eggshell system is a valuable model for studying developmental patterning and morphogenesis.
  • This system offers a window into the rapid evolution of developmental mechanisms.