Hybrid Corn CH010997 Breeding via Segmentation and Intermediary Lines
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Solution Overview
Problem
Current corn breeding techniques face challenges in developing hybrid varieties that combine desirable traits such as high yield, disease resistance, and uniformity, while maintaining genetic stability and avoiding self-pollination, which limits the introduction of new genetic modifications and traits.
Innovation Solution
The development of the hybrid corn variety CH010997, which incorporates a cytoplasmic or nuclear factor for male sterility and genetic modifications conferring traits like herbicide resistance, disease resistance, and altered metabolism, using techniques like backcrossing and genetic transformation to introduce specific alleles or transgenes, ensuring stable expression of desired characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional self-pollination breeding methods are used, then genetic stability and uniformity are maintained, but the introduction of new genetic modifications and traits is limited
Solution Approach 1:
The breeding process is segmented into distinct phases: creating inbred lines through self-pollination to achieve genetic stability, then crossing these lines to introduce new traits while maintaining uniformity. This segmentation allows each phase to optimize for its specific goal without compromising the other.
Solution Approach 2:
Inbred lines are developed and stabilized through multiple generations of self-pollination before crossing. This preliminary action ensures that the parental lines have achieved the desired genetic stability and uniformity, providing a solid foundation for introducing new traits through cross-pollination without compromising overall genetic integrity.
2Adaptability or versatility
If cross-pollination is used to combine desirable traits from different plants, then genetic diversity and trait combination are improved, but self-pollination control is compromised
Solution Approach 1:
The patent uses inbred lines as intermediary elements that bridge self-pollination and cross-pollination. These inbred lines serve as stable parental stocks that can be crossed to combine desirable traits while maintaining control over the breeding process. The inbred lines act as intermediaries that preserve the benefits of both self-pollination (genetic stability) and cross-pollination (trait combination).
Solution Approach 2:
The breeding program performs preliminary self-pollination to create stable inbred lines before engaging in cross-pollination. This preliminary action establishes controlled parental lines with known genetic characteristics, allowing subsequent cross-pollination to be precisely controlled and directed toward combining specific desirable traits while maintaining overall genetic stability.
3Stability of the object's composition
If multiple generations of selfing are performed to develop homozygous inbred plants, then genetic uniformity is achieved, but breeding time is extended
Solution Approach 1:
The patent applies partial selfing (not complete self-pollination for many generations) combined with strategic cross-pollination to achieve sufficient genetic uniformity and stability in inbred lines. This partial action approach reduces the total breeding time required while still achieving the desired genetic uniformity, avoiding the excessive time consumption of complete multi-generational selfing.
4Adaptability or versatility
If hybrid crosses are evaluated for commercial potential, then desirable traits are identified, but the complexity of breeding programs increases
Solution Approach 1:
The breeding program is segmented into manageable components: developing inbred lines, creating hybrid crosses, and evaluating progeny. This segmentation allows each component to be optimized and managed independently, reducing the overall complexity of the breeding program while still achieving comprehensive trait identification and combination.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH010997. The invention thus relates to the plants, seeds and tissue cultures of the variety CH010997, and to methods for producing a corn plant produced by crossing a corn plant of variety CH010997 with itself or with another corn plant, such as a plant of another variety. The invention further relates to genetic complements of plants of variety CH010997.