Hybrid Corn CH011034 Cytoplasmic Male Sterility Breeding
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 CH011034, 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
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 extracts and removes the self-pollination capability from the corn plant by introducing cytoplasmic male sterility genes, which eliminate pollen production in the female parent. This allows the female parent to exclusively receive pollen from the male parent, ensuring cross-pollination while maintaining genetic uniformity through controlled hybridization.
Solution Approach 2:
The patent uses cytoplasmic male sterility as an intermediary mechanism to control pollination. The sterile cytoplasm acts as a mediator that prevents self-pollination in the female parent, while the restorer gene in the male parent restores fertility in the hybrid offspring, enabling efficient hybrid seed production.
2Productivity
If physical emasculation is used to prevent self-pollination, then cross-pollination can be achieved, but breeding complexity and labor requirements increase
Solution Approach 1:
The patent implements self-service by enabling the plant system to automatically prevent self-pollination through cytoplasmic male sterility. The female parent's sterile cytoplasm autonomously eliminates its own pollen production capability, eliminating the need for external physical emasculation operations and reducing breeding complexity.
Solution Approach 2:
The patent replaces the mechanical system of physical emasculation with a biological system based on cytoplasmic male sterility. Instead of manually removing anthers or preventing pollen discharge through mechanical means, the system uses genetic control at the cellular level to prevent pollen formation entirely, simplifying the breeding process.
3Adaptability or versatility
If multiple desirable traits are combined in hybrid corn, then agronomic quality improves, but maintaining genetic stability becomes more difficult
Solution Approach 1:
The patent segments the genetic material into distinct parental lines, each contributing specific desirable traits. The female parent contributes cytoplasmic male sterility and certain agronomic traits, while the male parent contributes restorer genes and other desirable characteristics. This segmentation allows controlled combination of traits in the hybrid while maintaining stability through defined inheritance patterns.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH011034. The invention thus relates to the plants, seeds and tissue cultures of the variety CH011034, and to methods for producing a corn plant produced by crossing a corn plant of variety CH011034 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 CH011034.