Hybrid Corn CH011089 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 CH011089, which incorporates genetic modifications and cytoplasmic male sterility to prevent self-pollination, along with tissue culture methods for regenerating plants with specific traits like herbicide resistance and improved agronomic characteristics, enables efficient hybrid seed production and genetic stability.
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 inability to prevent self-pollination
Solution Approach 1:
The patent removes the male reproductive capability from the female parent plant through cytoplasmic male sterility (CMS), extracting the pollen-producing function from the system. This prevents self-pollination in the female parent while maintaining genetic stability, thereby improving hybrid seed production efficiency
Solution Approach 2:
The patent introduces a male sterility restorer gene as an intermediary element that mediates between the sterile female parent and the male parent. This restorer gene enables controlled pollination by restoring male fertility only when needed, allowing efficient hybrid seed production while maintaining genetic control
2Reliability
If multiple desirable traits are combined in hybrid varieties, then yield and resistance improve, but maintaining genetic stability becomes more difficult
Solution Approach 1:
The patent combines multiple desirable traits including high yield, disease resistance, and herbicide tolerance into a single hybrid variety through controlled crossing. By using CMS to ensure pure hybridization, all traits are stably inherited together, maintaining genetic stability while improving reliability
Solution Approach 2:
The patent changes the cytoplasmic parameter to induce male sterility, which fundamentally alters the inheritance pattern. This parameter change ensures that only the desired hybrid combination is produced, maintaining genetic stability across generations while expressing multiple improved traits
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH011089. The invention thus relates to the plants, seeds and tissue cultures of the variety CH011089, and to methods for producing a corn plant produced by crossing a corn plant of variety CH011089 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 CH011089.