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Regionalisation of segment-forming capacities during early embryogenesis inDrosophila melanogaster.

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Test for intercalary regeneration of the metameric pattern of the leafhopperEuscelis plebejus fall. (homoptera).

Wilhelm Roux's archives of developmental biology·2017
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Development of complete embryos in drastically deformed leafhopper eggs.

Otto Vogel1

  • 1Institut für Biologie I (Zoologie) der Albert-Ludwigs-Universität Freiburg, Albertstraße 21a, D07800, Freiburg i. Br., Germany.

Wilhelm Roux'S Archives of Developmental Biology
|March 18, 2017
PubMed
Summary

Even when leafhopper eggs (Euscelis plebejus) are deformed by inward folding at both poles, a complete germ band can still form. This suggests developmental plasticity in insect embryogenesis.

Keywords:
Deformation of egg shapeLeafhopper eggPattern formation

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Area of Science:

  • Developmental biology
  • Insect embryogenesis
  • Entomology

Background:

  • The leafhopper Euscelis plebejus serves as a model organism for studying insect development.
  • Understanding embryonic development is crucial for insect biology and pest control.

Purpose of the Study:

  • To investigate the effects of severe egg deformation on germ band formation in Euscelis plebejus.
  • To determine if normal embryonic development can occur despite significant physical constraints.

Main Methods:

  • Surgical manipulation of Euscelis plebejus eggs to induce deformation by involuting both egg poles longitudinally.
  • Microscopic observation and analysis of germ band formation in deformed eggs.

Main Results:

  • Despite severe involution of both egg poles, a complete germ band was successfully formed in Euscelis plebejus.
  • The formed germ band exhibited a normal sequence of segments, indicating resilience to physical distortion.

Conclusions:

  • Embryonic development in Euscelis plebejus demonstrates remarkable plasticity, allowing for the formation of a complete germ band even under extreme physical deformation.
  • These findings highlight the robustness of developmental processes in insects and provide insights into the mechanisms underlying pattern formation.