Hybrid Corn CH011037 Cytoplasmic Male Sterility Breeding
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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 CH011037, 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
1Productivity
If traditional self-pollination breeding methods are used, then genetic stability is maintained, but trait introduction efficiency and hybrid seed production are limited
Solution Approach 1:
The patent extracts the self-pollination capability from the corn plant by inducing male sterility through cytoplasmic factors or genetic modifications. This removal of the self-pollination function forces cross-pollination, thereby improving trait introduction efficiency and hybrid seed production while maintaining genetic stability through controlled breeding programs that preserve desired genetic characteristics.
Solution Approach 2:
The patent changes the pollination parameter from self-pollination to cross-pollination by modifying the plant's reproductive status through male sterility induction. This parameter change enables efficient trait introduction and hybrid seed production while breeding programs maintain genetic stability by carefully managing the cross-pollination process and selecting for desired traits.
2Productivity
If self-pollination is allowed, then genetic uniformity is maintained, but hybrid seed production efficiency decreases
Solution Approach 1:
The patent employs self-service mechanisms where the male sterile plant automatically prevents self-pollination through its inherent sterility. This eliminates the need for manual emasculation or other complex operations to prevent self-pollination, thereby improving hybrid seed production efficiency while maintaining genetic uniformity through controlled cross-pollination.
Solution Approach 2:
The patent performs preliminary action by inducing male sterility before pollination occurs. This advance preparation ensures that self-pollination cannot occur, forcing cross-pollination and improving hybrid seed production efficiency. The sterility is established through cytoplasmic factors or genetic modifications that are present before the pollination event.
3Productivity
If male sterility is induced to prevent self-pollination, then hybrid seed production improves, but plant complexity increases
Solution Approach 1:
The patent employs universal cytoplasmic male sterility factors that can be applied across different corn varieties to induce male sterility. This multi-functional approach allows the same cytoplasmic factor to prevent self-pollination in multiple genetic backgrounds, improving hybrid seed production without requiring variety-specific genetic modifications, thereby reducing overall complexity.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH011037. The invention thus relates to the plants, seeds and tissue cultures of the variety CH011037, and to methods for producing a corn plant produced by crossing a corn plant of variety CH011037 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 CH011037.