Maize Inbred FF6788 Hybrid Breeding Adaptability
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Solution Overview
Problem
Corn breeding faces 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 existing methods struggle to address effectively.
Innovation Solution
The development of the maize inbred plant FF6788, 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 and subsequent backcrossing to introduce desired traits, ensuring adaptability and high performance across various Corn Belt regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional breeding methods are used to develop maize hybrids, then uniformity and reproducibility are achieved, but adaptability to regional conditions and resistance to specific diseases are insufficient
Solution Approach 1:
The patent segments the breeding process into distinct phases: developing specialized inbred lines with specific disease resistances (e.g., Gray Leaf Spot resistance in FF3879) and regional adaptations, then combining them in hybrid crosses. This allows each parent line to contribute targeted traits, resolving the contradiction between uniformity and specialized adaptability.
Solution Approach 2:
The patent applies local quality by creating inbred lines tailored to specific regional conditions and disease pressures. For example, FF3879 was developed with specific resistance to Gray Leaf Spot and adapted to northern Corn Belt conditions, while other lines address different regional needs. This ensures each hybrid combination has locally optimized traits.
2Stability of the object's composition
If inbred lines are used as parents for hybrid production, then uniformity and reproducibility of hybrid seed are achieved, but vigor and seed yield of inbred plants are reduced
Solution Approach 1:
The patent uses inbred lines as genetic templates or 'copies' that can be repeatedly used as parent lines. Once an inbred line like FF3879 is developed with desired traits, it can be copied and used multiple times in different hybrid combinations, maintaining uniformity and reproducibility while the actual hybrid plants exhibit high vigor through heterosis.
3Adaptability or versatility
If multiple breeding objectives are pursued simultaneously, then comprehensive improvement is achieved, but complexity of breeding program increases
Solution Approach 1:
The patent segments multiple breeding objectives into separate parent lines, each optimized for specific traits. For example, FF3879 focuses on disease resistance and northern region adaptation, while other lines address yield, drought tolerance, or different disease resistances. This modular approach manages complexity by dividing the overall breeding program into specialized components.
Solution Approach 2:
The patent merges multiple specialized inbred lines in hybrid crosses to combine their respective desirable traits. By crossing lines that have been independently optimized for different characteristics, the program achieves comprehensive improvement while managing complexity through systematic combination rather than attempting to improve all traits simultaneously in a single line.
Data Source
AI summary
The present invention provides an inbred corn line designated FF6788, methods for producing a corn plant by crossing plants of the inbred line FF6788 with plants of another corn plant. The invention further encompasses all parts of inbred corn line FF6788, including culturable cells. Additionally provided herein are methods for introducing transgenes into inbred corn line FF6788, and plants produced according to these methods.