Hybrid Corn CH100388 Cytoplasmic Male Sterility
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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 CH100388, 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
1Reliability
If physical emasculation is used to prevent self-pollination, then hybrid seed production is achieved, but labor intensity and production cost increase
Solution Approach 1:
The patent replaces the mechanical system of physical emasculation with a biological system - cytoplasmic male sterility (CMS). The CMS trait genetically prevents pollen production in the female parent, eliminating the need for manual or mechanical removal of male organs. This substitution of mechanical emasculation with genetic control resolves the contradiction by maintaining reliable prevention of self-pollination while dramatically reducing labor intensity and production costs.
2Productivity
If cytoplasmic male sterility is introduced to prevent self-pollination, then breeding efficiency increases, but genetic complexity increases
Solution Approach 1:
The patent extracts the male fertility function from the cytoplasm by introducing cytoplasmic male sterility (CMS) into the female parent line. This extraction separates the male and female reproductive functions at the genetic level - the female parent contributes sterile cytoplasm that prevents self-pollination, while the male parent contributes only nuclear genes. This extraction resolves the contradiction by enabling efficient hybrid seed production through genetic control while managing genetic complexity through deliberate parental line design.
3Adaptability or versatility
If multiple desirable traits are combined in a single hybrid variety, then agronomic performance is improved, but breeding complexity increases
Solution Approach 1:
The patent merges multiple desirable traits into a single hybrid variety (CH100388) by combining specific inbred lines that each contribute different advantageous characteristics. The hybrid combines traits such as disease resistance, yield potential, and adaptability from its parental lines into one unified variety. This merging resolves the contradiction by achieving superior agronomic performance through genetic combination while managing breeding complexity through systematic selection and evaluation of parental lines and their progeny.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH100388. The invention thus relates to the plants, seeds and tissue cultures of the variety CH100388, and to methods for producing a corn plant produced by crossing a corn plant of variety CH100388 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 CH100388.