Hybrid Corn CH011070 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 CH011070, 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
1Productivity
If self-pollination is allowed in corn breeding, then genetic diversity is maintained, but hybrid seed production efficiency decreases due to uncontrollable pollination
Solution Approach 1:
The patent applies cytoplasmic male sterility (CMS) to the female parent before crossing, which preliminarily prevents self-pollination by making the female plant incapable of producing viable pollen. This preliminary genetic modification ensures that when hybrid seed production begins, the female parent cannot self-pollinate, thereby improving hybrid seed production efficiency while maintaining genetic stability through controlled cross-pollination only
2Productivity
If conventional breeding methods are used to develop hybrid varieties, then multiple desirable traits can be combined, but the breeding process is time-consuming and inefficient
Solution Approach 1:
The patent incorporates cytoplasmic male sterility into parent lines beforehand through preliminary breeding efforts. This preliminary action eliminates the need for labor-intensive emasculation procedures during hybrid seed production, significantly reducing the time and labor required for crossing operations while maintaining the ability to combine multiple desirable traits through selective breeding
Solution Approach 2:
The male sterile trait serves itself by automatically preventing self-pollination without requiring human intervention for emasculation. The genetic mechanism of cytoplasmic male sterility self-regulates the pollination process, ensuring that only cross-pollination occurs while reducing manual labor and time requirements for the breeding process
3Productivity
If male sterile traits are introduced to prevent self-pollination, then hybrid seed production is improved, but device complexity increases due to genetic modification requirements
Solution Approach 1:
The patent uses cytoplasmic male sterility as an intermediary genetic mechanism that mediates between the need to prevent self-pollination and the requirement for simple breeding procedures. The CMS trait acts as a biological mediator that automatically controls pollination without requiring complex genetic engineering or multiple marker systems, thereby improving hybrid seed production efficiency while minimizing the increase in system complexity
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH011070. The invention thus relates to the plants, seeds and tissue cultures of the variety CH011070, and to methods for producing a corn plant produced by crossing a corn plant of variety CH011070 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 CH011070.