Hybrid Corn CH348362 Uniform Performance via Segmented Breeding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current corn breeding techniques face challenges in developing uniform hybrid plants with desirable traits such as high yield, disease resistance, and uniformity, as they often result in non-uniform and unpredictable performance due to genetic differences between cross-pollinated plants.
Innovation Solution
The development of the hybrid corn variety CH348362, which includes a cytoplasmic or nuclear factor for male sterility to prevent self-pollination, along with specific genetic loci for traits like herbicide resistance, insect resistance, and disease resistance, introduced through backcrossing or genetic transformation, ensuring consistent performance and desirable characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional cross-pollination breeding methods are used, then genetic diversity is achieved, but uniformity and predictability of hybrid performance deteriorate
Solution Approach 1:
The breeding process is segmented into distinct phases: first developing homozygous inbred parental lines through self-pollination to ensure genetic uniformity, then crossing these standardized parents to produce hybrid offspring. This segmentation allows genetic diversity to be introduced only at the controlled crossing stage while maintaining uniformity within each parental line and their progeny.
Solution Approach 2:
The invention changes the genetic parameter state by forcing homozygosity in parental lines through repeated self-pollination and selection, then exploiting the heterozygous state in F1 hybrids. This parameter transformation from homozygous parents to heterozygous hybrids ensures both genetic diversity in the hybrid and uniformity of expression across the hybrid population.
2Manufacturing precision
If self-pollination is used to develop uniform inbred lines, then uniformity of parental plants is improved, but genetic diversity is reduced
Solution Approach 1:
Uniform inbred parental lines are developed in advance through prolonged self-pollination and selection before the hybridization step. This preliminary action creates genetically uniform starting materials that can then be crossed to generate diverse yet uniform hybrids, resolving the contradiction by preparing uniform components that will combine to produce the desired uniform hybrid performance.
3Manufacturing precision
If multiple breeding generations are conducted to achieve desired traits, then trait quality is improved, but breeding time is extended
Solution Approach 1:
Once superior inbred parental lines are developed with desired traits, their genetic characteristics are copied and fixed through homozygosity. This allows the same high-quality trait combination to be repeatedly produced in hybrid generations without requiring continuous multi-generational breeding, thus improving trait quality while reducing the time needed for subsequent breeding cycles.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH348362. The invention thus relates to the plants, seeds and tissue cultures of the variety CH348362, and to methods for producing a corn plant produced by crossing a corn plant of variety CH348362 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 CH348362.