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Related Experiment Video

Updated: Sep 28, 2025

Surgical Removal of a Complex Sensory Organ in Highly Regenerative Ctenophores
05:04

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Published on: August 8, 2025

192

Studying Ctenophora WBR Using Mnemiopsis leidyi.

Julia Ramon-Mateu1,2, Allison Edgar3, Dorothy Mitchell3

  • 1The Whitney Laboratory for Marine Bioscience, St. Augustine, FL, USA. julia.ramon@imev-mer.fr.

Methods in Molecular Biology (Clifton, N.J.)
|April 1, 2022
PubMed
Summary

Comb jellies (Ctenophores) possess remarkable whole-body regeneration capabilities. This study details protocols for using Mnemiopsis leidyi to investigate the evolution of regeneration in animals.

Keywords:
CtenophoreHusbandryLive imagingMnemiopsis leidyiSurgeriesTime-lapseWhole-body regenerationWound healing

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Area of Science:

  • Marine Biology
  • Developmental Biology
  • Evolutionary Biology

Background:

  • Ctenophores (comb jellies) are ancient multicellular animals known for their regenerative abilities.
  • Their unique phylogenetic position and experimental advantages make them ideal models for studying regeneration evolution.
  • Understanding regeneration in ctenophores offers insights into the evolutionary history of this trait across Metazoa.

Purpose of the Study:

  • To provide detailed protocols for studying whole-body regeneration in the ctenophore Mnemiopsis leidyi.
  • To establish standardized methods for specimen handling, manipulation, and observation.
  • To facilitate research into the genetic and cellular mechanisms underlying ctenophore regeneration.

Main Methods:

  • Specimen collection and laboratory husbandry of Mnemiopsis leidyi.
  • Surgical techniques for inducing regeneration (e.g., amputation).
  • Advanced imaging techniques for observing regenerative processes.

Main Results:

  • Established a comprehensive set of protocols for the experimental study of ctenophore regeneration.
  • Demonstrated the feasibility of using Mnemiopsis leidyi as a model organism for regeneration research.
  • Provided a foundation for future studies on the molecular basis of regeneration in this early-branching animal group.

Conclusions:

  • Mnemiopsis leidyi is a suitable model organism for investigating whole-body regeneration.
  • The provided protocols enable standardized research on ctenophore regeneration.
  • This work advances our understanding of the evolution of regenerative capacity in multicellular animals.