Hybrid Corn CH906071 Cytoplasmic 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 efficiency of hybrid seed production.
Innovation Solution
The development of the hybrid corn variety CH906071, which incorporates genetic modifications and cytoplasmic male sterility traits to prevent self-pollination, along with specific genetic loci conferring herbicide resistance, insect resistance, and other desirable characteristics, using advanced breeding methods and genetic transformation techniques like genome editing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional self-pollination breeding methods are used, then genetic stability is maintained, but hybrid seed production efficiency is limited due to self-pollination
Solution Approach 1:
The patent extracts and removes the self-pollination capability from the corn plant by introducing cytoplasmic male sterility traits. This prevents the female parent from producing viable pollen, completely eliminating self-pollination and forcing cross-pollination for seed production, thereby dramatically improving hybrid seed production efficiency while maintaining genetic stability through controlled crosses.
Solution Approach 2:
The patent uses cytoplasmic male sterility as an intermediary mechanism to control pollination. The sterile cytoplasm acts as a mediator that prevents self-pollination in the female parent, while the male parent provides restorer genes that restore fertility in the hybrid offspring, enabling efficient hybrid seed production without compromising genetic stability.
2Reliability
If multiple desirable traits are combined in hybrid varieties, then yield and resistance are improved, but breeding complexity increases
Solution Approach 1:
The patent applies multi-functionality by combining cytoplasmic male sterility (for preventing self-pollination), herbicide resistance genes (for weed control), insect resistance genes (for pest protection), and disease resistance traits (for pathogen defense) into a single hybrid variety. This multi-functional approach ensures high reliability across multiple protection dimensions while streamlining the breeding process through systematic trait integration.
Solution Approach 2:
The patent merges multiple desirable traits including male sterility, herbicide resistance, insect resistance, and disease resistance into unified hybrid varieties. By combining these traits through controlled crosses and genetic transformation, the breeding process achieves comprehensive protection and high yield while managing complexity through systematic integration of multiple genetic elements.
3Productivity
If cytoplasmic male sterility is introduced to prevent self-pollination, then hybrid seed production efficiency improves, but genetic modification complexity increases
Solution Approach 1:
The patent applies self-service by utilizing the natural cytoplasmic inheritance system to automatically prevent self-pollination. The female parent's sterile cytoplasm self-regulates pollen production without requiring external intervention, while the male parent's restorer genes automatically restore fertility in the hybrid offspring, simplifying the overall genetic modification process despite the introduction of sterile traits.
Solution Approach 2:
The patent uses cytoplasmic male sterility as an intermediary mechanism that simplifies hybrid seed production. The sterile cytoplasm mediates the prevention of self-pollination, and the restorer genes mediate the restoration of fertility, creating a self-regulating system that improves productivity while managing genetic modification complexity through natural biological mechanisms.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH906071. The invention thus relates to the plants, seeds and tissue cultures of the variety CH906071, and to methods for producing a corn plant produced by crossing a corn plant of variety CH906071 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 CH906071.