VIGS Vector Silencing PHD Gene to Enhance Phloem Development
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Solution Overview
Problem
Current understanding of phloem development in plants is limited, with few identified genes, and there is a need for molecular-level research on how to regulate phloem formation to enhance crop yields.
Innovation Solution
A recombinant virus-induced gene silencing (VIGS) vector is used to silence PHD genes, which negatively regulate phloem formation, thereby increasing phloem development in plants, using a method that involves transforming plants with a gene encoding a PHD protein to inhibit PHD gene expression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If PHD genes are silenced to increase phloem formation, then the movement of photosynthetic products to storage organs is improved, but the molecular-level understanding of phloem development remains limited due to lack of identified genes
Solution Approach 1:
The patent uses a VIGS (Virus-Induced Gene Silencing) vector as an intermediary tool to silence PHD genes and observe the effects on phloem development. This intermediary approach allows researchers to study gene function without directly manipulating the genes themselves, thereby advancing molecular-level understanding while improving phloem formation efficiency
Solution Approach 2:
The patent utilizes the plant's own gene silencing mechanisms by introducing a VIGS vector that triggers the plant's natural RNA interference pathway. This self-service approach allows the plant's own biological systems to be harnessed for studying and improving phloem development, reducing the need for external molecular manipulation
2Productivity
If genetic engineering methods are used to regulate phloem development, then crop yield can be enhanced, but the complexity of the genetic manipulation process increases
Solution Approach 1:
The patent extracts only the essential PHD gene sequences into the VIGS vector, removing unnecessary genetic material and simplifying the manipulation process. This extraction approach focuses on the critical genes that regulate phloem development, reducing the overall complexity of the genetic engineering process while maintaining yield enhancement benefits
Solution Approach 2:
The patent changes the expression parameters of PHD genes by using the VIGS system to downregulate their expression. This parameter change approach (from high expression to reduced expression) achieves phloem development improvement without requiring complex gene construction, thereby simplifying the overall genetic manipulation process
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach significantly increases phloem formation, improving the movement of photosynthetic products to storage organs, potentially enhancing crop yields and biomass production.
Implementation Method 1
A recombinant virus-induced gene silencing (VIGS) vector is used to silence PHD genes, which negatively regulate phloem formation
Data Source
AI summary
Disclosed is a PHD protein regulating the differentiation of plant phloem; a recombinant vector containing a gene encoding the same; a plant transformed with the recombinant vector; a seed of the plant; and a method for regulating the development and formation of plant phloem by using the gene encoding the PHD protein. Regulated is the development of phloem, which plays the role in moving a photosynthetic product and finally storing the same in starch and sugar forms in a plant storage organ, so as to regulate the function of phloem, thereby having an effect of controlling the size and storage capacity of the plant storage organ. The development of phloem can be improved by allowing the PHD gene to be silent in plants, and thus it is expected that the function of plant phloem can be increased through the regulation of PHD gene expression by using genetic engineering techniques.