LAZY4 Gene Mutation for Steeper Root Growth
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Solution Overview
Problem
Crop production is limited by soil resource acquisition, with annual crops unable to fully exploit soil resources due to shallow root systems, leading to resource loss and reduced yields, especially under drought conditions.
Innovation Solution
Introduction of a dominant gain of function mutation in the LAZY4 gene, specifically targeting the LAZY4D motif, to alter root growth architecture, resulting in a steeper root angle and improved resource acquisition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If crops use shallow root systems, then above-ground growth is maintained, but soil resource acquisition is limited and yields are reduced
Solution Approach 1:
The patent applies parameter changes by modifying the root growth angle parameter through genetic manipulation of LAZY4/DRO1 genes. This changes the root architecture from shallow to steep rooting, enabling roots to access deeper soil layers and acquire more water and nutrients, thereby resolving the contradiction between limited resource acquisition and reduced yield
2Quantity of substance
If crops develop extensive root systems, then resource acquisition improves, but time is lost to evaporation, leaching, and competing organisms
Solution Approach 1:
The patent implements preliminary action by establishing steep rooting architecture early in plant development through genetic modification. This allows roots to quickly penetrate deep soil layers and access resources before they are lost to evaporation, leaching, or competing organisms, thereby reducing the time loss while maintaining resource acquisition benefits
3Area of stationary object
If lateral growth of shallow-rooted plants occurs, then root surface area increases, but fewer roots reach deeper soil areas
Solution Approach 1:
The patent applies dimensionality change by shifting root growth from a lateral (horizontal) pattern to a vertical (depth) pattern through genetic modification of LAZY4/DRO1 genes. This creates steep rooting architecture where roots grow downward into deeper soil layers rather than spreading horizontally, thereby accessing resources in the vertical dimension that were previously unreachable
Data Source
AI summary
The invention relates to genetically altered plants with improved traits, in particular steeper root growth. The invention also relates to methods for making such plants and methods for modulating root growth, in particular methods that employ gene editing techniques.