Genome editing in rice: toward climate-resilient, nutrient-rich yields.

Area of Science:

• Agricultural Science
• Genetics and Genomics
• Biotechnology

Background:

• Rice is a primary global calorie source, necessitating increased yields to feed a growing population by 2050.
• Conventional breeding and transgenesis face limitations in speed and regulatory hurdles for developing resilient, high-yielding rice varieties.
• Genome editing offers a precise, efficient, and transgene-free alternative for crop improvement.

Purpose of the Study:

• To review recent advancements in rice genome editing technologies and their applications.
• To highlight the potential of genome editing for enhancing rice yield, stress resilience, and nutritional value.
• To discuss challenges and future prospects in rice genome editing.

Main Methods:

• Review of major genome editing innovations since 2020, including base editing, prime editing, and multiplex editing.
• Analysis of new delivery methods for genome editing components in rice.
• Examination of studies applying genome editing to improve specific rice traits.

Main Results:

• Significant progress in base and prime editing for precise genetic modifications in rice.
• Development of multiplex editing strategies for simultaneous trait improvement.
• Successful applications in enhancing yield, resistance to abiotic/biotic stresses, and nutritional content.
• Innovations in delivery systems for more efficient genome editing.

Conclusions:

• Genome editing is a powerful tool for accelerating the development of improved rice varieties.
• Addressing challenges in precision, delivery, and regulatory frameworks is crucial for widespread adoption.
• Future research should focus on optimizing genome editing technologies for sustainable agriculture and global food security.