Hybrid Corn CH010993 Controlled Pollination
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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 CH010993, 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 controlled pollination and 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 uniformity is maintained, but genetic diversity and introduction of new traits are limited
Solution Approach 1:
The patent segments the breeding process into distinct phases: developing male-sterile inbred lines for controlled cross-pollination to introduce new traits, then separately maintaining genetic stability through selective breeding and screening in subsequent generations. This allows simultaneous achievement of genetic diversity introduction and stability maintenance through temporal separation of objectives.
Solution Approach 2:
The patent introduces male-sterility as an intermediary mechanism to enable controlled cross-pollination between different inbred lines. This intermediary trait facilitates the introduction of new genetic material while maintaining control over the breeding process, resolving the contradiction between genetic diversity and stability.
2Adaptability or versatility
If cross-pollination is used to introduce new traits, then genetic diversity increases, but control over pollination and genetic purity becomes more difficult
Solution Approach 1:
The patent extracts the male fertility function by introducing male-sterile inbred lines, effectively removing the ability of these lines to self-pollinate. This extraction enables complete control over pollination, ensuring that cross-pollination occurs only between intended parent lines while preventing unwanted self-pollination or contamination.
Solution Approach 2:
The patent changes the fertility parameter of specific inbred lines by inducing or selecting for male-sterility. This parameter change transforms the pollination control mechanism, allowing researchers to easily manage cross-pollination events and maintain genetic purity in hybrid populations.
3Productivity
If multiple desirable traits are combined in hybrid breeding, then agronomic performance improves, but breeding complexity and time required increase
Solution Approach 1:
The patent applies preliminary action by developing and characterizing multiple inbred lines with specific desirable traits before combining them in hybrid crosses. This preparatory work includes screening for disease resistance, yield components, and other agronomic qualities in the parental lines, which simplifies the subsequent hybrid development process and reduces overall breeding time.
Solution Approach 2:
The patent merges multiple desirable traits from different inbred lines into single hybrid combinations through systematic crossing programs. By combining lines with complementary traits (e.g., disease resistance from one line, high yield from another), the patent achieves superior agronomic performance while managing breeding complexity through organized crossing designs.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH010993. The invention thus relates to the plants, seeds and tissue cultures of the variety CH010993, and to methods for producing a corn plant produced by crossing a corn plant of variety CH010993 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 CH010993.