Genome editing in plants involves the precise modification of DNA sequences within the plant genome. These tools have the potential to change the architecture of a genome, and recent advancements in technologies such as CRISPR/Cas9, homologous recombination (HR), transcription activator-like effector nucleases (TALENs), and zinc finger nucleases (ZFNs), have enabled researchers to engineer plants with unprecedented accuracy. The significance of genome editing, as exemplified by the extensive research in various breeding technologies over the past two decades, holds profound significance. Precision editing enables the development of crops with heightened nutritional value, targeting specific deficiencies such as iron, folate, and beta-carotene in rice and zinc and selenium in barley. Such targeting of staple crops addresses micronutrient deficiencies affecting over 1.2 billion individuals globally and is only one example of its potential. Crops have also been genome-edited to support better health. In tomatoes, work has been done to increase levels of γ-aminobutyric acid (GABA) and lycopene to lower blood pressure and the risk of cancer and heart disease. In wheat, trials are being conducted for it to produce less asparagine, a compound that can cause cancer when bread is toasted. Crops are also being modified to increase yield potential. In corn, research is being done to increase the number of seeds per cob and improve its tolerance to climatic changes and resistance to pests and diseases. In doing so, it contributes to the establishment of resistant and sustainable agricultural systems.
Genome editing, in tackling malnutrition, creating nutrient-rich foods, and encouraging sustainable agriculture, promotes the United Nations' Sustainable Development Goal (SDG) 2: Zero Hunger and SDG 3: Good Health and Well-being. In light of these developments and in accordance with SDG goals, BMC Methods aimed to highlight the methodologies that underpin developments in plant genome editing, bringing together methodological and protocol-focused articles that provide detailed insights into its tools, techniques, and procedures. Authors were invited to contribute articles covering aspects such as:
- CRISPR/Cas9-mediated genome editing in plants: Protocols and optimization strategies
- TALEN and zinc finger nucleases: Advances in plant genome editing
- Delivery systems for efficient genome editing in plants
- Off-target effects in plant genome editing: Detection and minimization strategies
- Precision breeding for crop improvement: Methodologies and applications
- Applications of genome editing in enhancing plant disease resistance
- Genome editing for improved abiotic stress tolerance in crops
- High-throughput methods for functional genomics in plants
- Applications for the release and placing on the market of genetically modified plants and their products
Image credit: GMZ / stock.adobe.com / Generated with AI