Application of CRISPR/Cas-based gene-editing for developing better banana

Area of Science:

• Agricultural Science
• Biotechnology
• Plant Genetics

Background:

• Banana (Musa spp.) is a vital staple food and cash crop globally, facing significant threats from pests and diseases.
• Current banana production is challenged by pathogens, impacting yield and availability for millions.

Purpose of the Study:

• To explore the application of CRISPR/Cas gene editing for enhancing banana resilience, productivity, and nutritional quality.
• To highlight advancements in gene editing for disease resistance, improved plant architecture, and reduced food waste.

Main Methods:

• CRISPR/Cas-based gene editing techniques were employed to target specific genes and viral sequences.
• Development of gene-edited banana mutants, including those with resistance to banana Xanthomonas wilt (BXW) and banana streak virus (BSV).
• Exploration of CRISPRa, CRISPRi, and Cas-CLOVER systems for precise genetic modifications.

Main Results:

• Successfully generated gene-edited bananas with resistance to BXW and BSV.
• Developed semi-dwarf banana varieties and enhanced β-carotene content.
• Created non-browning bananas, receiving regulatory approval, to mitigate food waste.

Conclusions:

• CRISPR/Cas technology offers transformative potential for improving banana crop resilience, yield, and nutritional value.
• Integration of precision genetics with traditional breeding and transgene-free strategies is key for future advancements.
• Gene editing holds significant promise for global food security by developing robust and nutritious banana varieties.