Hybrid Corn CH389868 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 CH389868, which incorporates genetic modifications and cytoplasmic male sterility traits to prevent self-pollination, along with specific genetic loci conferring herbicide resistance, disease 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 inability to prevent self-pollination
Solution Approach 1:
The patent extracts and removes the self-pollination capability from the corn plant by introducing cytoplasmic male sterility traits that eliminate pollen production. This allows hybrid seed production without self-pollination interference while maintaining genetic stability through controlled cross-pollination only.
Solution Approach 2:
The patent uses cytoplasmic male sterility systems as an intermediary mechanism to control pollination. The sterile cytoplasm acts as a mediator that prevents self-pollination while allowing controlled cross-pollination with fertile maintainer or restorer lines, thereby improving hybrid seed production efficiency.
2Productivity
If cytoplasmic male sterility traits are introduced to prevent self-pollination, then hybrid seed production efficiency is improved, but device complexity increases due to genetic modifications
Solution Approach 1:
The patent changes the genetic parameters of the corn plant by introducing cytoplasmic male sterility traits and associated genetic loci. This parameter change enables prevention of self-pollination and improves hybrid seed production efficiency, while the complexity is managed through established breeding protocols.
3Adaptability or versatility
If multiple desirable traits are combined in a single hybrid variety, then agronomic quality and yield are improved, but breeding program complexity increases
Solution Approach 1:
The patent merges multiple desirable traits including cytoplasmic male sterility, herbicide resistance, disease resistance, and yield improvement genes into a single hybrid variety (CH389868). This combining of traits improves agronomic quality and versatility while the breeding program manages complexity through systematic crossing and selection protocols.
Solution Approach 2:
The patent creates a universal hybrid variety that performs multiple functions: preventing self-pollination through cytoplasmic male sterility, providing herbicide resistance, offering disease resistance, and achieving high yield. This multi-functional variety improves agronomic quality across different farming conditions.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH389868. The invention thus relates to the plants, seeds and tissue cultures of the variety CH389868, and to methods for producing a corn plant produced by crossing a corn plant of variety CH389868 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 CH389868.