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Innovative Nanotechnology in CRISPR-Based Crop Genome Editing

  • Osama Alam,
  • Shahid Ullah Khan,
  • Shareef Gul,
  • Hameed Gul,
  • Ikram Ullah

摘要

Nanotechnology right now is revolutionizing genetic engineering, allowing for finely selective nanoscale changes in the genome. In response, researchers are developing new techniques to transport genetic materials into cells with nanomaterials such as liposomes, nanoparticles, and nanotubes. Nanotechnology-mediated delivery of CRISPR/Cas systems is a game changer in the field of genome editing. This strategy has great potential in resolving agriculture issues enabling specialized changes at a genomic level within crop plants. This helps in the production of novel traits and reduces breeding efforts. However, the lack of existing functional assays that can measure whether genome changes due to a particular gene edit are beneficial for crop yield/quality is currently blocking this technique from playing a greater role in editing the genomes of crops. There are no complete and high-quality reference plant genomes which makes it hard to measure the effectiveness of many types/targets for CRISPR-based edits. Higher plant species provide difficulties for CRISPR/Cas9 techniques because of low gene targeting effectiveness and a variety of parameters, including guide RNA specificity, target genome complexity, and promoters. Effective delivery of guide RNAs remains a persistent hurdle, potentially leading to off-target mutations and complicating result interpretation. The system’s reliance on the PAM region for Cas protein attachment poses an additional challenge. Traditional detection methods may miss certain edits, including deletions and rearrangements. Throughout the genome editing process, advances in next-generation sequencing tools are being utilized to overcome these obstacles. These techniques make it easier to verify additional modifications, validate gene knockouts, and investigate the impacts of CRISPR off-target. To evaluate the impact of CRISPR/Cas-mediated genome modifications on gene structure and function, several high-throughput sequencing techniques are presently in use. In the future, when combined with precise phenotyping and functional genomic research, genome editing will open up new avenues for crop growth.