Hybrid Corn CH011097 Breeding via Segmentation and Intermediary Crosses
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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 efficiency of breeding processes.
Innovation Solution
The development of the hybrid corn variety CH011097, which incorporates genetic modifications and cytoplasmic male sterility to prevent self-pollination, along with specific traits like herbicide resistance and disease resistance, achieved through genetic transformation and backcrossing techniques, allowing for controlled cross-pollination and stable trait introduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional self-pollination breeding methods are used, then genetic uniformity can be maintained, but the ability to combine desirable traits from different parent lines is limited
Solution Approach 1:
The breeding program segments the parent population into distinct inbred lines through repeated self-pollination and selection, creating genetically uniform parent lines that can be systematically crossed to combine specific desirable traits while maintaining overall genetic stability through controlled mating designs
Solution Approach 2:
The patent uses controlled cross-pollination as an intermediary mechanism between genetically uniform parent lines, allowing desirable traits to be combined in F1 hybrids while the uniformity of parent lines ensures predictable and stable inheritance patterns
2Adaptability or versatility
If cross-pollination is used to combine traits from different plants, then genetic diversity and trait combination improve, but control over pollination and genetic stability decrease
Solution Approach 1:
The patent performs preliminary actions by developing highly uniform inbred parent lines through multiple generations of self-pollination and selection before crossing, which simplifies the subsequent cross-pollination process and ensures predictable F1 hybrid performance with stable trait expression
Solution Approach 2:
The uniform inbred parent lines serve themselves by providing consistent and predictable gametes for cross-pollination, reducing the complexity of controlling pollination outcomes since the genetic background of each parent is known and uniform
3Stability of the object's composition
If repeated self-pollination is used to develop uniform inbred lines, then genetic uniformity improves, but the time required to develop new hybrids increases
Solution Approach 1:
The patent applies partial self-pollination actions over multiple generations to achieve the necessary level of genetic uniformity in parent lines, then stops selfing and proceeds directly to crossing, avoiding excessive self-pollination cycles and reducing overall breeding time while maintaining sufficient uniformity for successful hybrid development
4Ease of operation
If natural wind pollination is used, then the pollination process is simple, but control over cross-pollination and prevention of self-pollination is difficult
Solution Approach 1:
The patent extracts and removes the variability and unpredictability elements from natural wind pollination by using highly uniform inbred parent lines, allowing simple wind pollination to proceed while ensuring reliable and controlled genetic outcomes because each parent line's genetic composition is known and consistent
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH011097. The invention thus relates to the plants, seeds and tissue cultures of the variety CH011097, and to methods for producing a corn plant produced by crossing a corn plant of variety CH011097 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 CH011097.