Hybrid Corn CH010983 Breeding via Male Sterility
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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 CH010983, which incorporates a cytoplasmic or nuclear factor for male sterility, genetic modifications for herbicide resistance, and disease resistance, and a method for crossing plants to prevent self-pollination, allowing for the introduction of specific traits like waxy starch and altered metabolism through genetic transformation techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If self-pollination is allowed in corn breeding, then genetic diversity is maintained, but genetic uniformity and stability of hybrid varieties deteriorates
Solution Approach 1:
The patent extracts and removes the self-pollination capability from the corn plant by introducing male sterility factors (cytoplasmic male sterility or nuclear male sterility genes). This extraction prevents self-pollination while maintaining cross-pollination, thereby preserving genetic uniformity in hybrid varieties without completely isolating the plants from genetic exchange through controlled crossing.
Solution Approach 2:
The patent introduces intermediary elements (male sterility factors and fertility restorer genes) that mediate the pollination process. These intermediaries control whether self-pollination can occur, allowing breeders to precisely regulate genetic uniformity while maintaining the ability to introduce desired traits through controlled cross-pollination with fertile parent lines.
2Stability of the object's composition
If male sterility is introduced to prevent self-pollination, then genetic uniformity is improved, but device complexity increases due to additional genetic factors
Solution Approach 1:
The patent applies local quality by introducing male sterility only in specific parent lines used for hybrid production, rather than in all corn plants. The sterile parent line has modified genetic properties locally, while the rest of the breeding system maintains normal genetics. This localized modification minimizes overall genetic complexity while achieving the goal of preventing self-pollination in hybrid varieties.
Solution Approach 2:
The patent changes the fertility parameter of specific parent lines by introducing male sterility factors. This parameter change is reversible and controllable through the use of fertility restorer genes, allowing dynamic adjustment of the genetic system's complexity based on breeding needs without permanently increasing overall system complexity.
3Adaptability or versatility
If new genetic modifications are introduced, then desirable traits are improved, but genetic stability of the original variety deteriorates
Solution Approach 1:
The patent segments the genetic material into distinct parent lines, each contributing specific traits. One parent line provides the base variety genetics with desired stability, while the other parent line contributes specific desirable traits through cross-pollination. This segmentation allows new traits to be introduced without disrupting the genetic stability of the original variety, as the stable parent line's genetics are preserved in the hybrid offspring.
Solution Approach 2:
The patent performs preliminary action by developing and stabilizing parent lines with specific traits before creating the hybrid variety. The male sterile parent line is pre-modified with desired traits and sterility factors, and the fertile parent line is pre-selected for genetic stability. This preliminary preparation ensures that when crossing occurs, the original variety's genetic stability is maintained while new desirable traits are successfully introduced.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH010983. The invention thus relates to the plants, seeds and tissue cultures of the variety CH010983, and to methods for producing a corn plant produced by crossing a corn plant of variety CH010983 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 CH010983.