Hybrid Corn CH357331 Breeding via Segmentation and Preliminary Action
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Corn breeding techniques face challenges in developing uniform hybrid varieties with desirable traits such as high yield, disease resistance, and uniform germination due to genetic non-uniformity in cross-pollinated plants, requiring the development of stable inbred plants and specific breeding methods.
Innovation Solution
The development of the hybrid corn variety CH357331, which includes genetic loci for traits like male sterility, herbicide resistance, and disease resistance, using cytoplasmic-male sterility and genetic transformation techniques to introduce desired traits, and tissue culture methods for regenerating plants with consistent physiological and morphological characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cross-pollination is used to develop corn hybrids, then genetic diversity and trait combination are improved, but genetic uniformity and predictability deteriorate
Solution Approach 1:
The breeding process is segmented into distinct phases: first developing homozygous inbred lines through self-pollination to ensure genetic uniformity, then crossing these stabilized lines to introduce genetic diversity. This segmentation allows each phase to optimize for its specific goal without compromising the other.
Solution Approach 2:
Homozygous inbred plants are developed and stabilized through multiple generations of self-pollination before the actual hybrid cross. This preliminary stabilization of parental lines ensures that when crossing occurs, the resulting hybrids exhibit predictable and uniform performance.
2Stability of the object's composition
If self-pollination is used to develop inbred lines, then genetic uniformity is improved, but genetic diversity and adaptability deteriorate
Solution Approach 1:
Self-pollination is used as a preliminary step to stabilize parental lines and achieve homozygosity, but not as the final breeding strategy. The inbred lines developed through self-pollination serve as uniform parental stocks that are then crossed to restore genetic diversity in the hybrid generation.
Solution Approach 2:
Homozygous inbred lines act as intermediaries that temporarily concentrate genetic uniformity to facilitate controlled crossing. These inbred lines serve as stable parental sources that, when crossed, produce hybrids with both uniformity and genetic diversity.
3Adaptability or versatility
If traditional breeding methods are used to combine desirable traits, then trait combination is improved, but breeding time and complexity increase
Solution Approach 1:
Multiple desirable traits are incorporated into parental inbred lines through preliminary breeding efforts before the final hybrid cross. This allows the actual hybridization event to combine pre-packaged trait combinations, significantly reducing the time required compared to developing multi-trait hybrids through repeated crossing and selection.
Solution Approach 2:
The heterosis effect allows the F1 hybrid generation to automatically express superior performance and combine parental traits without requiring additional selection or intervention in the first generation. The hybrid itself 'services' the breeding goal by naturally exhibiting the desired trait combination and uniformity.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH357331. The invention thus relates to the plants, seeds and tissue cultures of the variety CH357331, and to methods for producing a corn plant produced by crossing a corn plant of variety CH357331 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 CH357331.