Hybrid Corn CH011114 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 trait introduction and hybrid seed production.
Innovation Solution
The development of the hybrid corn variety CH011114, which incorporates genetic modifications and cytoplasmic male sterility to prevent self-pollination, along with tissue culture methods for regenerating plants with specific traits, enables the introduction of traits like herbicide resistance, disease resistance, and improved agronomic characteristics, and allows for controlled cross-pollination to produce hybrid seeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional self-pollination breeding methods are used, then genetic uniformity can be maintained, but self-pollination limits the introduction of new traits and reduces hybrid seed production efficiency
Solution Approach 1:
The patent extracts and removes the self-pollination capability from the corn plant by introducing cytoplasmic male sterility factors that prevent pollen formation or function. This extraction of the harmful self-pollination function allows for controlled cross-pollination while maintaining genetic uniformity through the sterile cytoplasm.
Solution Approach 2:
The patent uses cytoplasmic male sterility factors as intermediaries to control pollination. These factors act as mediators that prevent self-pollination while allowing controlled cross-pollination between specific parental lines, thereby enabling hybrid seed production without direct mechanical intervention.
2Ease of operation
If mechanical emasculation is used to prevent self-pollination, then cross-pollination can be controlled, but the process complexity and labor requirements increase
Solution Approach 1:
The patent employs cytoplasmic male sterility factors that enable the plant to self-regulate and prevent self-pollination automatically. The sterile cytoplasm inherently prevents pollen formation or function, eliminating the need for external mechanical emasculation operations and reducing labor requirements.
3Reliability
If multiple breeding generations are advanced to combine desirable traits, then genetic stability improves, but the time required for variety development increases
Solution Approach 1:
The patent uses cytoplasmic male sterility factors to preliminarily establish controlled pollination systems before advancing breeding generations. By pre-configuring the sterility mechanism, the breeding process can systematically combine desirable traits across generations without time-consuming manual emasculation, accelerating variety development while maintaining genetic stability.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH011114. The invention thus relates to the plants, seeds and tissue cultures of the variety CH011114, and to methods for producing a corn plant produced by crossing a corn plant of variety CH011114 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 CH011114.