Maize Inbred 1PTQT83 for Stable, Faster Trait Introgression
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Solution Overview
Problem
The development of new maize varieties is a time-consuming process that requires six to twelve years, and there is a need for stable, high-yielding maize varieties with improved traits such as disease resistance, drought tolerance, and altered fatty acid profiles.
Innovation Solution
The introduction of the maize variety 1PTQT83, which can be crossed with other maize plants to incorporate traits like male sterility, disease resistance, and altered metabolic profiles through backcross conversion, genetic manipulation, and transformation, and the production of hybrid seeds using specific breeding and transformation techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional maize variety development processes are used, then stable and high-yielding varieties can be developed, but the process takes six to twelve years which is time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-establishing inbred lines with desired traits through backcrossing and genetic manipulation before the final hybrid development stage. This allows the foundational genetic material to be prepared in advance, reducing the overall development time while maintaining variety stability.
Solution Approach 2:
The patent uses inbred lines as intermediaries between the original germplasm and the final hybrid variety. These inbreds serve as stable carriers of desired traits that can be rapidly combined through backcrossing, accelerating the development process without compromising the reliability of the final variety.
2Adaptability or versatility
If multiple desirable traits are combined in a single variety, then agronomic performance improves, but the complexity of breeding programs increases
Solution Approach 1:
The patent segments the breeding program into distinct phases: creating inbreds with specific traits through backcrossing, then combining these inbreds to produce hybrids with multiple desirable traits. This segmentation allows complex trait combinations to be achieved through manageable, sequential steps rather than a single complex process.
Solution Approach 2:
The patent applies local quality by focusing breeding efforts on specific chromosomal regions and genes responsible for individual traits. By targeting and manipulating specific loci (such as those for disease resistance, drought tolerance, or fatty acid profile) rather than the entire genome, the complexity of combining multiple traits is reduced while maintaining agronomic performance.
3Productivity
If backcross conversion and genetic transformation are used to introduce traits, then trait development time is reduced, but the complexity of genetic manipulation increases
Solution Approach 1:
The patent uses inbred lines as intermediaries that facilitate the introduction of new traits through backcrossing. These inbreds serve as genetically stable platforms that can accept introduced traits without compromising the overall genome integrity, thereby reducing the complexity of genetic manipulation while maintaining rapid trait development.
Solution Approach 2:
The patent employs parameter changes by utilizing controlled backcrossing ratios and specific genetic markers to track and select for desired traits. By adjusting breeding parameters (such as the number of backcross generations and selection criteria) rather than using complex genome-editing techniques, the patent achieves rapid trait introduction with manageable genetic manipulation complexity.
Data Source
AI summary
A novel maize variety designated 1PTQT83 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety 1PTQT83 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 1PTQT83 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby are provided. Hybrid maize seed, plants or plant parts are produced by crossing the variety 1PTQT83 or a locus conversion of 1PTQT83 with another maize variety.