Hybrid Corn CH011068 Cytoplasmic Male Sterility Seed Production
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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 CH011068, which incorporates genetic modifications and cytoplasmic male sterility traits to prevent self-pollination, along with tissue culture methods for regenerating plants with specific physiological and morphological characteristics, enables the production of hybrid seeds with enhanced traits like herbicide resistance and improved agronomic qualities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional self-pollination breeding methods are used, then genetic uniformity can be maintained, but hybrid vigor and improved yield are limited
Solution Approach 1:
The breeding program segments the population into distinct inbred lines through repeated self-pollination and selection, creating genetically uniform parental lines that can be crossed to produce hybrids with both vigor and controlled genetics
Solution Approach 2:
The patent combines genetically distinct inbred lines through controlled cross-pollination to create hybrid offspring that exhibit heterosis (hybrid vigor), merging the advantages of genetic uniformity from inbreeding with the productivity benefits of hybridization
2Productivity
If cross-pollination is used to develop hybrid varieties, then hybrid vigor and yield are improved, but self-pollination control and genetic stability become more difficult
Solution Approach 1:
The patent extracts and eliminates the complexity of manual emasculation and pollination control by introducing cytoplasmic male sterility, which naturally prevents self-pollination and simplifies the hybrid seed production process
Solution Approach 2:
The male sterile trait enables the plant to self-regulate pollination control without human intervention, automatically preventing self-pollination and ensuring cross-pollination occurs only with designated male parent lines
3Reliability
If multiple desirable traits are combined in a single variety, then agronomic quality and resistance are improved, but genetic stability and breeding complexity increase
Solution Approach 1:
The patent performs preliminary selection and consolidation of desirable traits (including disease resistance and agronomic qualities) into stable inbred parental lines before hybridization, ensuring that the hybrid inherits multiple beneficial traits while maintaining breeding efficiency
Solution Approach 2:
The patent applies different selection criteria to different traits in the parental lines, allowing each parent to contribute specific desirable characteristics (such as disease resistance from one parent and agronomic quality from another) to the hybrid offspring
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH011068. The invention thus relates to the plants, seeds and tissue cultures of the variety CH011068, and to methods for producing a corn plant produced by crossing a corn plant of variety CH011068 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 CH011068.