Maize Inbred NPID7487 for Regional Corn Belt Adaptation
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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 inbred plant NPID7487, which includes a mutant or transgenic gene conferring traits such as herbicide resistance, insect resistance, disease resistance, and abiotic stress tolerance, allowing for the production of hybrid seeds through crossing with other maize plants to introduce desired traits and backcrossing to stabilize these characteristics across generations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current corn breeding methods are used to produce hybrids, then hybrid seed can be produced, but the hybrids are not uniformly adapted across different Corn Belt regions due to regional variations in growing conditions and specific issues like Gray Leaf Spot infection, cool temperatures, and soil pH levels
Solution Approach 1:
The breeding program is divided into multiple independent crossing combinations (e.g., NPID7487 x multiple different inbreds) to create specialized hybrids for different regions. Each crossing is evaluated separately for regional adaptability, allowing selection of the best combination for each specific Corn Belt region rather than relying on a single universal hybrid.
Solution Approach 2:
The patent develops hybrids with region-specific traits by selecting parental inbreds that contribute desirable characteristics for particular environments. For example, certain crossings are selected for regions with Gray Leaf Spot pressure, while others are optimized for cool temperature regions or specific soil pH conditions, ensuring each hybrid has the local quality needed for its target region.
2Stability of the object's composition
If inbred lines are used for hybrid production, then uniform and reproducible hybrid seed can be produced, but the inbred plants themselves show decreased vigor and are less vigorous compared to hybrids
Solution Approach 1:
Inbred lines are developed and maintained through careful breeding and selection processes before being used for hybrid production. The inbreds are emasculated or detasseled in advance of pollination to ensure controlled crossing, and multiple crossing combinations are prepared beforehand to provide both uniformity in seed production and vigor in the resulting hybrids.
3Adaptability or versatility
If multiple crossing combinations are evaluated to find region-specific hybrids, then adaptability to different regions can be improved, but the breeding program complexity and time required increase
Solution Approach 1:
The breeding program systematically varies key parameters including parental inbred selection, crossing combinations, evaluation locations, and environmental conditions. By changing these parameters across multiple controlled experiments, the program identifies optimal hybrids for different regions while managing complexity through structured methodology rather than random experimentation.
Data Source
AI summary
The present invention provides an inbred corn line designated NPID7487, methods for producing a corn plant by crossing plants of the inbred line NPID7487 with plants of another corn plant. The invention further encompasses all parts of inbred corn line NPID7487, including culturable cells. Additionally provided herein are methods for introducing transgenes into inbred corn line NPID7487, and plants produced according to these methods.