Maize Variety HID3634 Regional Adaptation Segmentation
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Solution Overview
Problem
Current corn breeding methods face challenges in producing high-yielding, agronomically sound plants that are uniformly adapted across the U.S. Corn Belt, as regional growing conditions and specific issues like Gray Leaf Spot infection, cool temperatures, and soil pH levels require tailored traits in hybrids, which are often not uniformly adapted.
Innovation Solution
The development of the maize variety HID3634, which includes specific traits such as increased water stress resistance, waxy starch, male sterility, and disease resistance, conferred by transgenes, and the use of advanced breeding techniques like backcrossing and marker-assisted selection to introduce desired traits into inbred lines, ensuring adaptability and high performance across different regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional breeding methods are used to develop maize hybrids, then regional adaptation can be achieved, but uniform performance across the U.S. Corn Belt cannot be ensured
Solution Approach 1:
The patent segments the Corn Belt into multiple regions (Northern, Western, Eastern, Southern) and develops region-specific hybrid combinations. Each region receives tailored hybrid selections that address local conditions such as temperature, soil pH, and disease pressure, while maintaining a core set of adapted inbred lines that can be combined across regions to achieve both regional optimization and broad uniformity.
Solution Approach 2:
The patent applies local quality by selecting and recommending specific hybrid combinations for different geographic regions based on their unique characteristics. For example, Northern hybrids are selected for cool temperature tolerance, Western hybrids for alkaline soil adaptation, Eastern hybrids for Gray Leaf Spot resistance, and Southern hybrids for heat and drought tolerance, ensuring each region receives genetically optimized plant material suited to its local environment.
2Stability of the object's composition
If inbred lines are used for hybrid production, then reproducibility of hybrid seed is achieved, but plant vigor is reduced
Solution Approach 1:
The patent uses inbred lines as genetic copies that can be repeatedly used to produce identical hybrid seed. The inbred lines serve as stable, reproducible genetic templates that can be planted season after season to generate consistent hybrid progeny with predictable performance characteristics, ensuring hybrid seed reproducibility while maintaining the vigor benefits of hybridization.
3Adaptability or versatility
If hybrids are developed for specific regional conditions, then adaptability to local environments is improved, but device complexity of breeding program increases
Solution Approach 1:
The breeding program is segmented into regional units, each with its own hybrid recommendations and inbred line combinations. This segmentation allows the overall program to manage complexity by dividing the large task of Corn Belt-wide adaptation into smaller, region-specific breeding and selection efforts, making the program more manageable while achieving comprehensive regional coverage.
Solution Approach 2:
The patent develops a core set of inbred lines that serve multiple functions and can be combined in different regional hybrids. These universal inbred lines provide foundational genetic material that can be used across multiple regions and hybrid combinations, reducing the total number of lines that need to be maintained and bred, thereby simplifying the overall breeding program while maintaining regional adaptability.
Data Source
AI summary
The present invention provides an inbred corn line designated HID3634, methods for producing a corn plant by crossing plants of the inbred line HID3634 with plants of another corn plant. The invention further encompasses all parts of inbred corn line HID3634, including culturable cells. Additionally provided herein are methods for introducing transgenes into inbred corn line HID3634, and plants produced according to these methods.