Hybrid Corn CH819344 Uniformity via Segmentation
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Solution Overview
Problem
Current 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, which affects performance predictability.
Innovation Solution
The development of the hybrid corn variety CH819344, which includes genetic loci for traits like male sterility, herbicide resistance, and disease resistance, using cytoplasmic-male sterility and transgenic methods to introduce desired traits, and tissue culture techniques to regenerate plants with specific 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 genetic non-uniformity in hybrid plants results in unpredictable performance
Solution Approach 1:
The breeding process is segmented into distinct phases: developing homozygous inbred parental lines through self-pollination, then crossing these standardized lines to produce uniform F1 hybrids. This segmentation ensures genetic uniformity within each phase while maintaining diversity across different hybrid varieties.
Solution Approach 2:
The patent changes the genetic uniformity parameter by using repeated self-pollination to achieve homozygosity in parental lines, then crossing them to produce heterozygous but uniform F1 hybrids. This parameter change transforms the genetic structure from diverse and variable to uniform and predictable.
2Reliability
If self-pollination is used to create uniform homozygous lines, then genetic uniformity is achieved, but genetic diversity is reduced
Solution Approach 1:
Homozygous inbred parental lines are developed in advance through multiple generations of self-pollination and selection. This preliminary action creates genetically uniform and stable parent lines that can then be crossed to produce uniform F1 hybrids with predictable performance.
Solution Approach 2:
The patent creates true-breeding copies of parental lines through self-pollination, where each generation is a genetic copy of the previous one. This copying process ensures that the parental lines remain genetically uniform and stable across multiple generations.
3Reliability
If multiple breeding generations are advanced to develop superior inbreds, then desirable traits are improved, but time to market is extended
Solution Approach 1:
The breeding program uses self-pollination of inbred lines, which automatically maintains genetic uniformity without requiring intensive manual intervention. This self-service mechanism reduces labor time and accelerates the breeding process while maintaining trait quality.
Solution Approach 2:
The patent implements continuous selection and advancement of inbred lines across multiple generations, maintaining uninterrupted progress toward desirable traits. This continuous action ensures that breeding objectives are achieved efficiently without unnecessary delays.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH819344. The invention thus relates to the plants, seeds and tissue cultures of the variety CH819344, and to methods for producing a corn plant produced by crossing a corn plant of variety CH819344 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 CH819344.