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Generation of Transgenic Hydra by Embryo Microinjection
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Transgenesis in Hydra to characterize gene function and visualize cell behavior.

Alexander Klimovich1, Jörg Wittlieb2, Thomas C G Bosch3

  • 1Zoological Institute, University of Kiel, Kiel, Germany. aklimovich@zoologie.uni-kiel.de.

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|June 5, 2019
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Summary
This summary is machine-generated.

We developed a new method to create stable transgenic Hydra lines using embryo microinjection. This technique enables new research into developmental biology and aging in this key model organism.

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Area of Science:

  • Developmental Biology
  • Genetics
  • Zoology

Background:

  • The freshwater polyp Hydra is a cnidarian model organism.
  • It is used to study developmental mechanisms, aging, symbiosis, and host-microbe interactions.

Purpose of the Study:

  • To describe a procedure for establishing stable transgenic Hydra lines.
  • To enable new research avenues in Hydra biology.

Main Methods:

  • A three-stage protocol involving transgenic construct preparation, embryo microinjection into Hydra vulgaris, and selection/enrichment of mosaic animals.
  • Construct preparation takes ~2 weeks; transgenic lines are obtainable within 3 months.

Main Results:

  • Stable transgenic Hydra lines can be successfully established.
  • The method supports gain- and loss-of-function studies and in vivo cell tracing.
  • Transgenic Hydra reveal functional properties of ancestral developmental circuitry.

Conclusions:

  • This microinjection procedure provides a robust method for generating transgenic Hydra.
  • It facilitates advanced research into fundamental biological processes using Hydra as a model organism.