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Updated: Jun 9, 2026

Generation of Transgenic Hydra by Embryo Microinjection
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Generation of Transgenic Hydra by Embryo Microinjection

Published on: September 11, 2014

Dynamic transposable element expression during Hydra head regeneration.

Aide Macias-Muñoz1

  • 1Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA, 95064, USA. amacia16@ucsc.edu.

Mobile DNA
|June 7, 2026
PubMed
Summary
This summary is machine-generated.

Transposable elements (TEs) show dynamic expression during Hydra regeneration, potentially aiding tissue repair and repatterning. This study identifies specific TEs involved in the process for future research.

Keywords:
ApoptosisCaspaseJun/FosMetalloproteinsWnt

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Generation and Long-term Maintenance of Nerve-free Hydra
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Last Updated: Jun 9, 2026

Generation of Transgenic Hydra by Embryo Microinjection
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Published on: September 11, 2014

Generation and Long-term Maintenance of Nerve-free Hydra
06:33

Generation and Long-term Maintenance of Nerve-free Hydra

Published on: July 7, 2017

Area of Science:

  • Genomics
  • Developmental Biology
  • Regenerative Medicine

Background:

  • Transposable elements (TEs) influence genome evolution and gene regulation.
  • TEs are implicated in animal development and proposed to play a role in regeneration.
  • The cnidarian Hydra vulgaris possesses remarkable regenerative capacity and a genome rich in TEs.

Purpose of the Study:

  • To characterize the temporal expression patterns of transposable elements during Hydra head regeneration.
  • To identify specific TEs involved in the regenerative process.
  • To explore the genomic proximity of dynamically expressed TEs to genes associated with regeneration.

Main Methods:

  • Analysis of publicly available RNA-sequencing data from a time course of Hydra head regeneration.
  • Identification and characterization of transposable elements with dynamic temporal expression.
  • Genomic proximity analysis of differentially expressed TEs relative to regeneration-associated genes.

Main Results:

  • 262 transposable elements exhibited dynamic temporal expression during regeneration.
  • Some TEs displayed expression patterns mirroring genes involved in wound repair and tissue repatterning.
  • Dynamically expressed TEs were found near genes implicated in apoptosis, extracellular matrix remodeling, and regeneration signaling pathways.

Conclusions:

  • This study provides a comprehensive catalog of transposable elements with dynamic expression during Hydra regeneration.
  • Identified TEs serve as candidates for investigating their mechanistic roles in regeneration.
  • The findings suggest a potential contribution of TEs to the regenerative capabilities of Hydra.