Hybrid Corn CH011234 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 preventing self-pollination, which limits the efficiency of hybrid seed production.
Innovation Solution
The development of the hybrid corn variety CH011234, 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, and the use of genome editing techniques to introduce heritable traits like herbicide resistance and disease resistance.
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
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 plant from producing viable pollen, thereby eliminating self-pollination and forcing cross-pollination for seed production, which dramatically improves hybrid seed production efficiency while maintaining genetic stability through controlled breeding.
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 but allows controlled cross-pollination through manual or mechanical means, thereby improving hybrid seed production efficiency while maintaining genetic stability.
2Productivity
If cytoplasmic male sterility traits are introduced to prevent self-pollination, then hybrid seed production efficiency is improved, but device complexity increases
Solution Approach 1:
The patent employs self-service by utilizing the plant's own cytoplasmic inheritance system to control pollination. The cytoplasmic male sterility trait is inherited through the maternal line, allowing the breeding system to automatically prevent self-pollination without requiring external mechanical or chemical interventions, thereby improving efficiency while managing complexity.
Solution Approach 2:
The patent changes the genetic parameter of the corn plant by introducing cytoplasmic male sterility traits. This genetic modification alters the plant's reproductive parameters, making it sterile for self-pollination while maintaining fertility for cross-pollination, thereby improving hybrid seed production efficiency with a relatively simple genetic intervention.
3Adaptability or versatility
If genome editing techniques are used to introduce heritable traits, then trait diversity is enhanced, but manufacturing precision requirements increase
Solution Approach 1:
The patent extracts specific genes or genetic regions that confer desirable traits and introduces them into the corn genome through editing techniques. By focusing on specific target genes rather than random mutations, the method enhances trait diversity while managing the precision requirements through targeted approaches.
Solution Approach 2:
The patent uses copying by replicating desirable trait genes from donor plants and inserting them into the target corn genome. This allows for the introduction of multiple heritable traits through repeated copying and insertion operations, enhancing trait diversity while using standardized genetic sequences that reduce the complexity of precision requirements.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH011234. The invention thus relates to the plants, seeds and tissue cultures of the variety CH011234, and to methods for producing a corn plant produced by crossing a corn plant of variety CH011234 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 CH011234.