Hybrid Corn Pollination Control for Genetic Purity and Uniformity
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Solution Overview
Problem
Existing corn breeding techniques struggle to develop hybrids with uniformity and stability, incorporating desirable traits such as yield, disease resistance, and drought tolerance, while maintaining genetic purity and preventing self-pollination.
Innovation Solution
The development of the hybrid corn variety CH010589, which includes cytoplasmic or nuclear factors for male sterility, genetic modifications for traits like herbicide resistance and disease resistance, and a method for controlled cross-pollination using emasculation and bagging techniques to ensure hybrid purity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If self-pollination is prevented through male sterility factors, then hybrid purity is improved, but device complexity increases due to the need for cytoplasmic or nuclear factor management
Solution Approach 1:
The patent utilizes self-sterilization mechanisms where the plant's own cytoplasmic or nuclear factors prevent self-pollination. The male sterility system is intrinsic to the plant, eliminating the need for external emasculation or manual intervention to maintain hybrid purity.
Solution Approach 2:
The patent introduces cytoplasmic or nuclear factors as intermediaries that mediate between the need for hybrid purity and the natural pollination process. These genetic factors act as biological mediators that automatically prevent self-pollination while allowing controlled cross-pollination.
2Adaptability or versatility
If multiple desirable traits are combined through extensive breeding, then product versatility is improved, but manufacturing precision decreases due to difficulty in maintaining uniformity
Solution Approach 1:
The patent segments the breeding process into distinct homozygous inbred parental lines, each contributing specific desirable traits. By dividing the complex trait combination task into separate parental genomes, the system maintains uniformity within each parent while achieving trait diversity in the hybrid offspring.
Solution Approach 2:
The patent applies local quality by ensuring each parental inbred line is highly uniform (homozygous) for its specific set of traits, while the hybrid combination provides overall trait diversity. Each parent contributes specialized genetic quality that maintains precision in its contribution.
3Ease of operation
If natural wind pollination is used, then ease of operation is improved, but loss of substance increases due to pollen contamination from different varieties
Solution Approach 1:
The patent converts the potential harm of wind pollination (pollen contamination) into a benefit by using male sterility factors. The same wind mechanism that could cause contamination is now safely utilized because the sterile plants cannot produce contaminating pollen, yet still receive pollen for fertilization.
Data Source
AI summary
According to the disclosure, there is provided seed and plants of the hybrid com variety designated CH010589. The disclosure thus relates to the plants, seeds, and tissue cultures of the variety CH010589, and to methods for producing a corn plant produced by crossing a corn plant of variety CH010589 with itself or with another corn plant, such as a plant of another variety. The disclosure further relates to genetic complements of plants of variety CH010589.