Hybrid Corn Variety CH010513 for Genetic Purity and Trait Stability
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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 CH010513, which includes genetic modifications for traits like male sterility, herbicide resistance, and disease resistance, achieved through methods like backcrossing and genetic transformation, ensuring uniformity and stability by preventing self-pollination and incorporating desirable genetic loci.
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 isolates specific desirable genetic loci (such as disease resistance genes, yield-related genes) from complex parental genomes through molecular marker-assisted selection. This allows breeders to selectively transfer only the desired traits rather than managing entire complex parental lines, thereby achieving uniformity and stability of specific traits while simplifying the breeding process management.
Solution Approach 2:
The patent applies local quality by focusing breeding efforts on specific chromosomal regions containing desirable genes rather than attempting to manage the entire genome uniformly. Through marker-assisted backcrossing, specific genomic segments with desirable traits are selectively retained and refined across generations, achieving local optimization of trait uniformity while maintaining overall genetic manageability.
2Ease of manufacture
If self-pollination is allowed in hybrid corn production, then seed production is simplified, but genetic purity and hybrid uniformity are compromised
Solution Approach 1:
The patent introduces male sterility genes (such as CMS - cytoplasmic male sterility or nuclear male sterility genes) as intermediary mechanisms to prevent self-pollination. These genetic intermediaries automatically ensure cross-pollination without requiring manual detasseling or other mechanical interventions, thereby maintaining genetic purity and hybrid uniformity while simplifying the seed production process through automatic biological control.
3Adaptability or versatility
If multiple desirable traits are incorporated into a single hybrid, then overall crop performance is improved, but breeding complexity and time requirements increase
Solution Approach 1:
The patent employs preliminary action by pre-characterizing parental lines for multiple desirable traits using molecular marker screening before initiating the breeding program. Parents are selected and prepared in advance with known genetic compositions for disease resistance, yield, and other traits. This preliminary genetic characterization allows for efficient marker-assisted backcrossing and selection, significantly reducing the time required to develop multi-trait hybrids compared to traditional phenotypic selection methods.
Solution Approach 2:
The patent applies parameter changes by shifting from traditional phenotypic selection parameters to molecular marker-based genetic parameters. Instead of waiting for plants to express traits phenotypically (which takes multiple growing seasons), breeders directly select and track specific DNA markers associated with desirable traits throughout the breeding process. This parameter transformation accelerates the breeding timeline while maintaining accuracy in selecting multi-trait hybrids.
Data Source
AI summary
According to the disclosure, there is provided seed and plants of the hybrid corn variety designated CH010513. The disclosure thus relates to the plants, seeds, and tissue cultures of the variety CH010513, and to methods for producing a corn plant produced by crossing a corn plant of variety CH010513 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 CH010513.