Hybrid Corn Variety CH010362 With Cytoplasmic Male Sterility
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Solution Overview
Problem
Existing corn breeding techniques struggle to develop hybrids with uniformity and stability, incorporating desirable traits such as yield, disease resistance, and drought tolerance, while maintaining genetic purity and preventing self-pollination.
Innovation Solution
The development of the hybrid corn variety CH010362, which includes genetic modifications for traits like male sterility, herbicide resistance, and disease resistance, achieved through cytoplasmic and nuclear factors, and utilizes methods like backcrossing and genetic transformation to introduce specific genetic loci, ensuring uniformity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional breeding methods are used to develop corn hybrids, then genetic diversity can be maintained, but uniformity and stability of desirable traits are difficult to achieve
Solution Approach 1:
The patent extracts and utilizes cytoplasmic male sterility (CMS) from specific corn inbred lines to prevent self-pollination. By isolating the cytoplasmic factor responsible for male sterility and incorporating it into the hybrid breeding system, the invention achieves uniformity and stability of desirable traits while simplifying the breeding process through controlled cross-pollination
Solution Approach 2:
The patent employs cytoplasmic male sterility as an intermediary mechanism to prevent self-pollination and ensure controlled cross-pollination. This intermediary system (CMS) acts as a biological mediator that guarantees genetic uniformity and stability by preventing unwanted self-fertilization while maintaining the desired genetic composition
2Reliability
If self-pollination is allowed in corn breeding, then genetic purity can be maintained in homozygous lines, but hybrid uniformity and genetic purity are compromised
Solution Approach 1:
The patent applies preliminary anti-action by inducing male sterility in the female parent through cytoplasmic factors before pollination occurs. This pre-established sterility prevents self-pollination and ensures that only controlled cross-pollination takes place, thereby maintaining both genetic purity and hybrid uniformity
Solution Approach 2:
The patent extracts the male fertility function from the female parent by utilizing cytoplasmic male sterility. This separation allows the female parent to receive pollen only from designated male parents, ensuring genetic purity while maintaining hybrid uniformity through controlled cross-pollination
3Adaptability or versatility
If multiple desirable traits are incorporated into a single hybrid, then agronomic quality and adaptability improve, but breeding complexity and difficulty increase
Solution Approach 1:
The patent develops inbred lines that serve multiple functions: they provide cytoplasmic male sterility, contribute desirable agronomic traits, and serve as parental lines for hybrid production. This multi-functionality reduces breeding complexity by consolidating multiple roles into single parental lines while maintaining high agronomic quality and adaptability
Solution Approach 2:
The patent merges multiple desirable traits from different inbred lines into a single hybrid combination. By combining traits for disease resistance, yield, and adaptability from specifically selected parental lines, the invention achieves high agronomic quality and versatility while managing breeding complexity through systematic trait integration
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH010362. The invention thus relates to the plants, seeds and tissue cultures of the variety CH010362, and to methods for producing a corn plant produced by crossing a corn plant of variety CH010362 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 CH010362.