Biotechnological Road Map for Innovative Weed Management.

Area of Science:

• Agricultural Science
• Genetics
• Biotechnology

Background:

• Integrated weed management (IWM) predominantly relies on herbicides, leading to herbicide-resistant weeds globally.
• Weed traits promoting seed bank persistence worsen management challenges.
• There is a critical need for novel weed control techniques beyond traditional methods.

Purpose of the Study:

• To explore the potential of direct genetic control for managing agricultural weeds.
• To investigate molecular approaches for reducing weed fitness and competitiveness.
• To assess the feasibility of enhancing crop competitiveness or herbicide tolerance through genetic manipulation.

Main Methods:

• Leveraging CRISPR/Cas9 gene-editing systems.
• Utilizing advances in "omics" technologies and cost-effective sequencing.
• Exploring stable or transient genetic manipulation of key weed genes.

Main Results:

• Gene-editing offers potential for manipulating weed gene expression to reduce fitness.
• Genetic approaches can alter crops for improved competitiveness or herbicide tolerance.
• Molecular strategies present a promising alternative to chemical weed control.

Conclusions:

• CRISPR/Cas9 and "omics" technologies open avenues for direct genetic weed management.
• Molecular approaches could reduce chemical use in agriculture.
• Significant technical, practical, and regulatory hurdles remain for widespread adoption.