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Related Concept Videos

In-vitro Mutagenesis01:16

In-vitro Mutagenesis

To learn more about the function of a gene, researchers can observe what happens when the gene is inactivated or “knocked out,” by creating genetically engineered knockout animals. Knockout mice have been particularly useful as models for human diseases such as cancer, Parkinson’s disease, and diabetes.
DNA-only Transposons02:57

DNA-only Transposons

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Related Experiment Video

Updated: Jun 13, 2026

CRISPR/Cas9 Editing of the C. elegans rbm-3.2 Gene using the dpy-10 Co-CRISPR Screening Marker and Assembled Ribonucleoprotein Complexes.
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Published on: December 11, 2020

Targeted gene deletions in C. elegans using transposon excision.

Christian Frøkjaer-Jensen1, M Wayne Davis, Gunther Hollopeter

  • 1Howard Hughes Medical Institute, Department of Biology, University of Utah, Salt Lake City, Utah, USA.

Nature Methods
|April 27, 2010
PubMed
Summary

We created MosDEL, a new method for targeted gene knockout in Caenorhabditis elegans. This technique uses a transposon to create DNA breaks, enabling precise gene deletion and marker insertion.

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Last Updated: Jun 13, 2026

CRISPR/Cas9 Editing of the C. elegans rbm-3.2 Gene using the dpy-10 Co-CRISPR Screening Marker and Assembled Ribonucleoprotein Complexes.
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Published on: December 9, 2013

Area of Science:

  • Genetics
  • Molecular Biology
  • Developmental Biology

Background:

  • Gene editing technologies are crucial for understanding gene function.
  • Targeted gene knockout in model organisms like C. elegans facilitates biological research.
  • Existing methods may have limitations in efficiency or scope.

Purpose of the Study:

  • To develop a novel and efficient method for generating targeted gene knockouts in Caenorhabditis elegans.
  • To enable precise deletion of large DNA regions and simultaneous insertion of selection markers.

Main Methods:

  • Developed MosDEL, a method utilizing Mos1 transposon mobilization to create targeted double-strand breaks.
  • Employed injected DNA as a template for repair, facilitating gene deletion.
  • Integrated a positive selection marker during the repair process.

Main Results:

  • Successfully generated targeted gene knockouts in C. elegans.
  • Demonstrated the ability to delete DNA fragments up to 25 kb.
  • Achieved simultaneous insertion of a positive selection marker alongside gene deletion.

Conclusions:

  • MosDEL provides an effective strategy for targeted gene knockout in C. elegans.
  • The method allows for precise deletion of substantial genomic regions.
  • MosDEL offers a valuable tool for genetic manipulation and functional genomics studies in C. elegans.