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Related Experiment Video

Updated: Jul 10, 2025

A Robotic Platform for High-throughput Protoplast Isolation and Transformation
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Plant chromosome engineering - past, present and future.

Holger Puchta1, Andreas Houben2

  • 1Joseph Gottlieb Kölreuter Institute for Plant Sciences (JKIP) - Molecular Biology, Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany.

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|November 20, 2023
PubMed
Summary

Plant chromosome engineering uses advanced tools like CRISPR/Cas to precisely alter plant genomes. This enables targeted gene stacking, creation of novel genetic resources, and improved crop traits for breeding.

Keywords:
B chromosomesCRISPR/Casde novo centromeresgenome engineeringhaploids, inversionsminichromosomestranslocations

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Area of Science:

  • Genetics and Plant Science
  • Molecular Biology
  • Biotechnology

Background:

  • Spontaneous chromosomal rearrangements (CRs) are crucial for plant speciation, evolution, and domestication.
  • Traditional methods like X-ray irradiation fragmented chromosomes for plant breeding.
  • The CRISPR/Cas system revolutionized plant chromosome engineering by enabling targeted induction of double-strand breaks (DSBs).

Purpose of the Study:

  • To review and highlight advancements in plant chromosome engineering.
  • To discuss the potential of precise chromosomal modifications for crop improvement and biotechnology.
  • To explore future directions in engineering complex genomic structures.

Main Methods:

  • CRISPR/Cas-mediated induction of targeted double-strand breaks (DSBs).
  • Engineering chromosomal translocations to alter gene linkage.
  • Reversion of natural inversions to facilitate genetic exchange.
  • Construction of minichromosomes from standard or B chromosomes.
  • Development of synthetic centromeres.
  • Genome haploidization strategies, including centromere manipulation.

Main Results:

  • CRISPR/Cas enables highly efficient, site-specific DSB induction for predesigned chromosome engineering.
  • Genetic linkage can be modified via translocations and inversions.
  • Minichromosomes and synthetic centromeres are viable for biotechnological applications.
  • Genome engineering facilitates gene stacking and genetic isolation.

Conclusions:

  • Advanced chromosome engineering techniques offer unprecedented control over plant genomes.
  • These methods hold significant potential for crop breeding, biotechnology, and understanding genome evolution.
  • Future research will likely focus on combining existing technologies for more complex genomic manipulations.