Hybrid Corn Variety CH010441 Using CMS for Stable Trait Uniformity
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Solution Overview
Problem
Existing corn breeding methods struggle to develop hybrids with uniformity and desirable traits such as yield, disease resistance, and drought tolerance, while maintaining stability and commercial viability.
Innovation Solution
The development of the hybrid corn variety CH010441, which incorporates genetic modifications and cytoplasmic traits like male sterility, along with specific breeding techniques like backcrossing and genetic transformation, to enhance traits like herbicide resistance, disease resistance, and nutritional quality, while ensuring uniformity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional breeding methods are used to develop corn hybrids, then breeding processes can be maintained with conventional techniques, but the resulting hybrids lack sufficient uniformity and desirable traits such as yield, disease resistance, and drought tolerance
Solution Approach 1:
The patent applies parameter changes by introducing cytoplasmic male sterility (CMS) as a genetic parameter to control pollination. This changes the breeding parameter from conventional cross-pollination to controlled hybridization through CMS lines, ensuring uniformity in hybrid production while maintaining high yield and desirable traits through systematic breeding programs
2Productivity
If hybrid corn varieties with enhanced traits are developed, then yield, disease resistance, and nutritional value are improved, but the complexity of breeding programs and genetic modification processes increases
Solution Approach 1:
The patent segments the breeding program into distinct components: CMS lines for controlled hybridization, maintainer lines for propagating sterile lines, and restorer lines for producing fertile hybrids. This segmentation allows complex trait incorporation through modular breeding steps, managing program complexity while achieving enhanced yield and disease resistance
Solution Approach 2:
The patent uses cytoplasmic male sterility as an intermediary mechanism to facilitate controlled cross-breeding. The CMS cytoplasm acts as a mediator that prevents self-pollination and ensures cross-pollination between specific parental lines, simplifying the breeding process despite the complexity of incorporating multiple desirable traits
3Manufacturing precision
If cytoplasmic male sterility is introduced to prevent self-pollination and ensure hybrid uniformity, then hybrid production control is improved, but the genetic modification process becomes more complex
Solution Approach 1:
The patent employs self-service through cytoplasmic male sterility where the plant's own cytoplasm genetically prevents self-pollination. The CMS lines automatically ensure cross-pollination without requiring external emasculation or manual intervention, achieving precise hybrid production control while the breeding program manages the genetic complexity
Data Source
AI summary
According to the disclosure, there is provided seed and plants of the hybrid corn variety designated CH010441. The disclosure thus relates to the plants, seeds, and tissue cultures of the variety CH010441, and to methods for producing a corn plant produced by crossing a corn plant of variety CH010441 with itself or with another corn plant, such as a plant of another variety. The disclosure further relates to genetic complements of plants of variety CH010441.