Hybrid Corn CH100087 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 CH100087, which incorporates genetic modifications and cytoplasmic male sterility traits to prevent self-pollination, along with specific genetic loci conferring herbicide resistance, insect 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 uniformity can be maintained, but hybrid seed production efficiency is limited due to self-pollination
Solution Approach 1:
The patent converts the harmful effect of self-pollination (which reduces hybrid seed production efficiency) into a beneficial feature by introducing cytoplasmic male sterility. This genetic mechanism automatically prevents self-pollination, ensuring that hybrid seeds are produced through cross-pollination only, thereby resolving the contradiction between maintaining genetic uniformity and improving hybrid seed production efficiency.
Solution Approach 2:
The patent changes the pollination parameter by introducing male sterility traits that prevent self-pollination. This parameter change ensures that only cross-pollination occurs, thereby improving hybrid seed production efficiency while maintaining the genetic uniformity of the hybrid variety through controlled crossing of specific parental lines.
2Reliability
If multiple desirable traits are combined in hybrid varieties, then yield and resistance improve, but genetic stability becomes more difficult to maintain
Solution Approach 1:
The patent segments the genetic material into distinct parental lines, each carrying specific desirable traits such as disease resistance, insect resistance, and yield characteristics. By maintaining separate parental lines with defined genetic compositions and using controlled cross-pollination, the patent achieves both trait combination and genetic stability in the hybrid variety.
Solution Approach 2:
The patent uses cytoplasmic male sterility as an intermediary mechanism to control pollination. This intermediary trait ensures that cross-pollination between specific parental lines occurs reliably, thereby maintaining genetic stability while combining multiple desirable traits from different parents in the hybrid generation.
3Productivity
If cytoplasmic male sterility is introduced to prevent self-pollination, then hybrid seed production efficiency improves, but device complexity increases due to genetic modification requirements
Solution Approach 1:
The patent employs cytoplasmic male sterility, which is a self-service genetic mechanism that automatically prevents self-pollination without requiring external intervention or complex management systems. The sterile cytoplasm inherently blocks self-fertilization, allowing hybrid seed production to proceed efficiently through simple cross-pollination protocols, thereby improving productivity without proportionally increasing breeding program complexity.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH100087. The invention thus relates to the plants, seeds and tissue cultures of the variety CH100087, and to methods for producing a corn plant produced by crossing a corn plant of variety CH100087 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 CH100087.