FEA3 Gene Expression Modulation for Crop Yield Improvement
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Solution Overview
Problem
Current methods lack the ability to effectively control and modulate the size and development of shoot and floral meristems in plants, which is crucial for increasing yields of leaves, flowers, and fruit.
Innovation Solution
A method involving the introduction of a recombinant DNA construct into plant cells to reduce the expression of the fea3 gene, using specific nucleotide sequences or modified miRNA precursors to target and decrease fea3 expression, thereby altering agronomic characteristics such as ear meristem size, kernel row number, and yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If current methods are used to control plant development, then existing agricultural practices are maintained, but the ability to modulate meristem size and increase yields is limited
Solution Approach 1:
The invention changes the expression level parameter of the FEA3 gene through genetic modification. By introducing recombinant DNA constructs that reduce FEA3 expression, the patent directly modifies a key genetic parameter to achieve desired changes in meristem size and plant productivity, resolving the contradiction between maintaining existing practices and achieving improved control.
Solution Approach 2:
The invention uses recombinant DNA constructs as intermediaries to mediate the reduction of FEA3 gene expression. These constructs serve as the intermediary mechanism between the desired outcome (reduced FEA3 expression) and the actual genetic modification, enabling precise control over meristem development without directly manipulating the FEA3 gene itself.
2Manufacturing precision
If FEA3 expression is reduced to alter meristem size, then agronomic characteristics such as ear meristem size and kernel row number are improved, but the complexity of genetic modification increases
Solution Approach 1:
The invention extracts or removes the harmful effect of excessive FEA3 expression by introducing recombinant DNA constructs that specifically reduce FEA3 gene expression. This extraction of the problematic gene function allows for precise control of meristem size and kernel row number without introducing excessive overall complexity, as the solution targets only the specific gene responsible for the desired trait modification.
Data Source
AI summary
Methods and compositions for modulating shoot apical meristem size are provided. Methods are provided for modulating the expression of fea3 sequence in a host plant or plant cell to modulate agronomic characteristics such as altered size and number of organs, including plant seeds.