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Cellular basis of limb morphogenesis.

John Rallis1, Anastasios Pavlopoulos2

  • 1Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology Hellas, 70013 Heraklion, Crete, Greece; Department of Biology, University of Crete, 70013 Heraklion, Crete, Greece.

Current Opinion in Insect Science
|February 12, 2022
PubMed
Summary
This summary is machine-generated.

Understanding how genome encodes tissue size and shape is key. Cell behaviors like division, death, and shape changes integrate genetic and mechanical signals during development, particularly in insect and crustacean limb formation.

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Area of Science:

  • Developmental biology
  • Cell biology
  • Evolutionary biology

Background:

  • The genetic basis for tissue size and shape determination remains a significant biological question.
  • Cells integrate diverse genetic and mechanical cues to regulate their behavior, including division, apoptosis, and morphing.

Purpose of the Study:

  • To review the role of morphogenetic cell behaviors in limb development.
  • To compare limb formation in the insect Drosophila melanogaster and the pancrustacean Parhyale hawaiensis.

Main Methods:

  • Literature review of studies on Drosophila melanogaster imaginal disc development.
  • Literature review of studies on Parhyale hawaiensis embryonic limb outgrowth.

Main Results:

  • Morphogenetic cell behaviors are crucial for leg formation in Drosophila.
  • Similar cellular and tissue-level mechanisms are observed in Parhyale embryonic limb development.

Conclusions:

  • Limb development in arthropods and other bilaterians shares conserved developmental programs.
  • Further research is needed to explore the connection between genetic similarities and cellular/tissue mechanics in limb patterning.