Directed mutagenesis in plants through genome editing using guide RNA library

Plants with genetic diversity have a higher rate of resilience and adaptation to environmental change. Crop species need to diversify genetically if they are to produce more food for global security. Directed mutagenesis makes use of localized sequence diversification of the gene sequence to produce gene variants with desired characteristics. Using CRISPR-Cas dependent, targeted mutagenesis has recently been utilized to obtain synthetic evolution in a variety of plant species. The breadth of beneficial traits in crop species can be expanded and identified through the use of directed mutagenesis. This article focuses on efficient genome editing approaches for directed mutagenesis of plant genes with agronomic importance using the guide RNA library of CRISPR. Potential applications of cutting-edge CRISPR-Cas base editing and prime editing to introduce efficient site-directed mutation in plants are discussed. This strategy has shown considerable promise in aiding trait engineering, guided evolution, and genetic screening. Though this technology is still in its early stages, it offers a comprehensive evaluation of the existing strategies and new delivery techniques for CRISPR screens. It is possible to create superior varieties with higher yields, better nutrient content, and broad environmental tolerance with potential prospects of CRISPR screens in plants.