Hybrid Corn CH011076 Cytoplasmic Male Sterility Breeding
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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 CH011076, 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 hybrid seed production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical emasculation is used to prevent self-pollination, then cross-pollination control is improved, but labor intensity and cost increase
Solution Approach 1:
The patent replaces the mechanical process of physical emasculation with a biological mechanism (cytoplasmic male sterility) that naturally prevents pollen production. This substitution eliminates the need for manual or mechanical removal of male organs, thereby reducing labor intensity while maintaining reliable cross-pollination control in hybrid corn seed production
Solution Approach 2:
The patent employs cytoplasmic male sterility to enable the plant to automatically prevent self-pollination without external intervention. The sterile cytoplasm inherently blocks pollen production, allowing the plant to self-regulate its reproductive behavior and eliminating the need for human-operated emasculation processes
2Productivity
If hybrid varieties are developed to combine multiple desirable traits, then yield and resistance are improved, but breeding complexity increases
Solution Approach 1:
The patent utilizes pre-established cytoplasmic male sterility systems and standardized breeding protocols to streamline the development of multi-trait hybrid varieties. By having the male sterility mechanism already in place in the parental lines, breeders can directly focus on combining desired agronomic traits without additional complexity of preventing self-pollination, thus reducing overall breeding complexity while achieving high yield and resistance
3Manufacturing precision
If inbred plants are crossed to produce uniform hybrid population, then phenotypic uniformity is improved, but genetic diversity decreases
Solution Approach 1:
The patent applies cytoplasmic male sterility as a specific genetic parameter change that allows uniform hybrid production while preserving genetic stability. The CMS trait creates a controlled genetic state that ensures uniform phenotypic expression in the F1 hybrid population while the heterozygous nuclear genome maintains the genetic diversity necessary for stability and adaptability
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH011076. The invention thus relates to the plants, seeds and tissue cultures of the variety CH011076, and to methods for producing a corn plant produced by crossing a corn plant of variety CH011076 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 CH011076.