IT1 Gene Regulation for Potato Tuber Development Control
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Solution Overview
Problem
The formation of potato tubers is a complex biological process, and the key regulatory genes controlling tuber formation have not been fully discovered, particularly the identity genes that determine tuber formation, number, size, and timing.
Innovation Solution
The use of a polynucleotide, specifically the TCP transcription factor IT1, which is identified as the identity gene for tuber formation in potatoes. This gene regulates whether tubers form, their formation time, number, and size by controlling protein function and expression levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the complex biological process of tuber formation is studied without identifying specific identity genes, then the overall complexity of the biological process is maintained, but the ability to control and regulate tuber development is limited
Solution Approach 1:
The patent extracts and identifies specific identity genes (such as STOLONLESS and other TCP transcription factors) from the complex regulatory network controlling tuber formation. By isolating these key genetic elements, the invention enables targeted manipulation of tuber development without needing to understand or control the entire complex biological process, thus improving productivity while maintaining manageable complexity.
Solution Approach 2:
The invention utilizes parameter changes in gene expression levels and timing to control tuber formation. By manipulating the expression levels of identified identity genes and adjusting their temporal activation, the patent can precisely control tuber number, size, and formation timing, transforming the complex biological process into controllable parameter adjustments.
2Manufacturing precision
If key regulatory genes for tuber formation are not identified, then the natural complexity of the biological process is preserved, but the precision of controlling tuber formation timing and characteristics is reduced
Solution Approach 1:
The patent extracts and characterizes specific identity genes (STOLONLESS, and other TCP transcription factors) that provide precise control over tuber formation. By identifying these genetic elements and their specific functions, the invention recovers lost regulatory information and enables precise control of tuber formation timing, number, and size characteristics.
Solution Approach 2:
The invention establishes feedback mechanisms by identifying genes that respond to and regulate environmental signals. The STOLONLESS and other TCP transcription factors provide feedback loops that sense environmental conditions and adjust tuber formation accordingly, restoring precise control that was lost when these regulatory genes were not identified.
3Quantity of substance
If identity genes controlling tuber formation are discovered and utilized, then control over tuber number and size is improved, but the complexity of genetic manipulation and transgenic construction increases
Solution Approach 1:
The patent extracts and focuses on a limited set of key identity genes (STOLONLESS and a few other TCP transcription factors) that primarily control tuber formation. By concentrating on these specific genes rather than attempting to manipulate the entire genetic network, the invention achieves control over tuber number and size while keeping the genetic engineering complexity manageable.
Solution Approach 2:
The invention identifies TCP transcription factors that serve multiple functions in plant development, including tuber formation, stolon development, and flowering control. By targeting these multi-functional genes, the patent can control tuber characteristics while utilizing the same genetic tools for other agricultural purposes, reducing overall engineering complexity through versatility.
Data Source
AI summary
Disclosed are use of a polynucleotide, protein, and biological material in the regulation and control of plant tuber development, and related products and production methods thereof. The tuber plant or part thereof, comprising a sequence encoding a polypeptide comprising a sequence having at least 92% sequence identity to SEQ ID NO: 2, wherein the polypeptide is inhibited-expressed, loss-function, or overexpressed, and the development of plant tuber is changed. The polynucleotide is an identity gene of a tuber, and can control whether a tuber is formed, the formation time, the tuber size etc. by regulating and controlling a protein function, an expression quantity etc.