Hybrid Corn CH872467 Breeding Segmentation
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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 and unpredictability in cross-pollination, requiring the development of stable inbred plants and specific breeding methods.
Innovation Solution
The development of the hybrid corn variety CH872467, which includes genetic loci for traits like male sterility, herbicide resistance, and disease resistance, using cytoplasmic-male sterility and transgenic approaches, along with tissue culture techniques to regenerate 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 standardized lines to introduce controlled genetic diversity. This segmentation allows each phase to optimize for its specific goal without compromising the other.
Solution Approach 2:
Inbred parental lines are developed and standardized through multiple generations of self-pollination before the actual hybrid crossing. This preliminary action ensures that the parental lines have stable, uniform genetics, which then enables predictable and uniform hybrid performance when crossed.
2Stability of the object's composition
If self-pollination is used to develop inbred lines, then genetic uniformity is improved, but genetic diversity deteriorates
Solution Approach 1:
Self-pollination is used as a preliminary action to develop standardized inbred parental lines with uniform genetics. These pre-developed inbreds serve as the foundation for subsequent hybrid crosses, ensuring that diversity is introduced in a controlled manner rather than through direct cross-pollination of heterogeneous populations.
Solution Approach 2:
Homozygous inbred lines serve as intermediaries between the breeding population and the final hybrid variety. They mediate the transition from genetically diverse breeding material to uniform commercial hybrids by providing standardized, uniform parental genomes that can be consistently crossed to produce predictable offspring.
3Adaptability or versatility
If multiple breeding methods are used to combine desirable traits, then trait diversity is improved, but breeding complexity deteriorates
Solution Approach 1:
The breeding program is segmented into specialized teams or programs, each focused on developing inbred lines with specific desirable traits (e.g., disease resistance, yield components, stress tolerance). This segmentation allows complex trait combination goals to be divided into manageable, focused breeding efforts that can be integrated in later crosses.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH872467. The invention thus relates to the plants, seeds and tissue cultures of the variety CH872467, and to methods for producing a corn plant produced by crossing a corn plant of variety CH872467 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 CH872467.