Lox3 Gene Knockdown for Armyworm-Resistant Maize
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Solution Overview
Problem
Current agricultural methods for managing insect and fungal pathogens in crops are inefficient, leading to significant yield losses and environmental harm, and the Lox pathway's role in pathogen resistance is unpredictable due to high host-pathogen specificity.
Innovation Solution
Targeted knock-down or knock-out of the Lox3 gene in plants using gene silencing constructs or genome editing systems to confer resistance or tolerance to specific insects and fungi, such as fall armyworm, corn leafhopper, and fungal pathogens like Fusarium and Colletotrichum, by reducing Lox3 gene expression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current agricultural methods (chemical pesticides) are used to manage insect and fungal pathogens, then crop protection is achieved, but environmental harm and yield losses occur due to inefficiency and resistance
Solution Approach 1:
The patent changes the biological parameter of the plant by modifying the Lox3 gene expression levels. By reducing Lox3 gene expression through RNA interference or genome editing, the plant's susceptibility to specific insect and fungal pathogens is altered, providing protection without chemical pesticides and avoiding environmental harm while maintaining crop yield
Solution Approach 2:
The patent extracts or removes the harmful function of the Lox3 gene in the context of pathogen interaction. By knocking down or knocking out the Lox3 gene, the patent eliminates the gene's role in facilitating pathogen infection, thereby protecting the crop without introducing harmful chemicals into the environment
2Reliability
If the Lox pathway is targeted for pathogen resistance, then resistance to some pathogens may be achieved, but the outcome is unpredictable due to high host-pathogen specificity
Solution Approach 1:
The patent applies local quality by specifically targeting the Lox3 gene variant that is associated with susceptibility to certain pathogens (such as fall armyworm and specific fungi) while leaving other Lox genes and pathways intact. This selective approach provides targeted resistance without broadly affecting the plant's interaction with all pathogens, thereby improving reliability for specific pathogen-resistance while maintaining adaptability to other diseases
Data Source
AI summary
The present application provides a new technology to confer or enhance insect resistance and, optionally also resistance to fungal pathogens in plants. In particular, the present invention provides a method for conferring or increasing resistance or tolerance to insect and optionally also to fungal pathogens in maize and oil seed rape (OSR) by targeting the endogenous Lox3 gene. By introducing either a gene silencing construct, a genome editing system or a genome modification, which leads to a targeted knock-down or knock-out of the Lox3 gene endogenous to the plant, a new or increased resistance to insect and, optionally fungal pathogens can be created.