Hybrid Corn CH652359 Genetic Stability via Segmentation
Find Innovative SolutionsGenerate Solutions
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 CH652359, which incorporates a cytoplasmic or nuclear factor for male sterility and introduces genetic loci for traits like herbicide resistance, insect resistance, and disease resistance through backcrossing and genetic transformation, ensuring stable and uniform hybrid production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cross-pollination is used to develop hybrid corn varieties, then genetic diversity and desirable traits can be combined, but genetic non-uniformity occurs leading to unpredictable performance
Solution Approach 1:
The breeding process is segmented into distinct phases: first developing uniform homozygous inbred lines through self-pollination, then crossing these standardized lines to produce hybrids. This segmentation allows genetic diversity to be introduced only at the crossing stage while maintaining uniformity within each parental line, thus resolving the contradiction between genetic diversity and performance predictability.
Solution Approach 2:
The patent changes the genetic uniformity parameter by using multiple generations of self-pollination to achieve homozygosity in parental lines before crossing. This parameter change ensures that while the hybrids inherit genetic diversity from different parental lines, each parental contribution is genetically uniform, leading to predictable hybrid performance.
2Stability of the object's composition
If self-pollination is used to develop uniform inbred lines, then genetic uniformity and true breeding are achieved, but loss of genetic diversity limits trait combination
Solution Approach 1:
Uniform homozygous inbred lines are developed in advance through prolonged self-pollination before the hybridization step. This preliminary action creates genetically stable parental materials that can then be crossed to combine different traits, effectively separating the uniformity-building phase from the diversity-introduction phase.
Solution Approach 2:
The patent merges multiple uniform inbred lines with different desirable traits through controlled cross-pollination. By combining several genetically uniform but phenotypically different parental lines, the hybrid inherits a broad spectrum of traits while maintaining uniformity in its own genetic composition.
3Reliability
If multiple generations of selfing and selection are performed to develop superior inbreds, then desirable traits are concentrated, but breeding time and complexity increase
Solution Approach 1:
Once superior inbred lines are developed through multiple generations of selfing and selection, they serve as standardized genetic copies or templates that can be repeatedly used as parental lines. This copying approach allows the time-intensive development process to be performed only once, after which the proven inbred lines can be continuously crossed to produce hybrids without repeating the entire selection process.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH652359. The invention thus relates to the plants, seeds and tissue cultures of the variety CH652359, and to methods for producing a corn plant produced by crossing a corn plant of variety CH652359 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 CH652359.