chromosome-engineering
Chromosome engineering is the deliberate manipulation of chromosomal structure to produce defined deletions, inversions, or translocations within an organism's genome. In plant science, this technique enables researchers to precisely dissect complex genomic regions, isolate genes responsible for key agronomic traits, and facilitate the transfer of beneficial alleles—such as disease resistance or stress tolerance—between species or from wild relatives into cultivated varieties. It represents a powerful tool for accelerating crop improvement by providing fine-scale control over genomic architecture that traditional breeding cannot achieve.
open_in_new WikipediaPubMed · 2026-03-23
Scientists used a precision gene-editing tool (CRISPR/Cas9) to deliberately remove entire chromosomes from wheat by targeting repetitive DNA sequences found only on those chromosomes. This breakthrough could help breeders eliminate unwanted genetic material from wheat more efficiently than traditional methods.
CRISPR/Cas9 targeted at satellite DNA (highly repetitive chromosome-specific sequences) successfully induced chromosome truncation and complete elimination in wheat
The approach exploits repetitive satellite DNA as a unique genomic address to direct editing tools to specific chromosomes, enabling large-scale chromosomal engineering
Chromosome elimination was achieved in wheat, a complex polyploid crop, demonstrating feasibility in genomes with multiple similar chromosome sets
