Corn Variety CV466588 Breeding for Genetic Uniformity
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Solution Overview
Problem
Current corn breeding techniques face challenges in developing uniform corn hybrids with desirable traits such as high yield, disease resistance, and uniformity, as they often result in unpredictable performance due to genetic non-uniformity among hybrid plants.
Innovation Solution
The development of the corn variety CV466588, which includes a cytoplasmic or nuclear factor for male sterility and additional heritable traits like herbicide tolerance and disease resistance, along with a process for producing hybrid seeds by crossing inbred plants to ensure genetic uniformity and desirable characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional corn breeding techniques are used to develop hybrids, then various desirable traits can be combined, but genetic non-uniformity among hybrid plants results in unpredictable performance
Solution Approach 1:
The patent applies homogeneity by developing inbred lines that are genetically uniform and homozygous at all loci. These inbred lines serve as parents for hybrid production, ensuring that all hybrid plants receive identical genetic material from each parent, thereby achieving uniformity and predictable performance across the entire hybrid population while maintaining the combination of desirable traits.
2Reliability
If inbred plants are developed through self-pollination and selection, then uniform populations can be produced, but the breeding process becomes time-consuming and complex
Solution Approach 1:
The patent employs preliminary action by pre-developing and maintaining a library of homozygous inbred lines with known genetic characteristics before hybrid production is needed. These inbred lines are developed through multiple generations of self-pollination and selection in advance, allowing breeders to quickly assemble hybrid combinations with desired traits without repeating the time-consuming inbreeding process for each new hybrid.
3Adaptability or versatility
If cross-pollination is used to create hybrid plants, then genetic diversity can be achieved, but non-uniformity among plants results
Solution Approach 1:
The patent resolves this contradiction by using cross-pollination between homozygous inbred lines rather than within heterogeneous populations. Each inbred parent is genetically uniform, so their cross produces hybrids that are uniform among themselves (all receiving the same two parental genomes), while still achieving genetic diversity through the combination of different inbred line genomes. This approach ensures both hybrid vigor and population uniformity.
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV466588. The invention thus relates to the plants, seeds and tissue cultures of the variety CV466588, and to methods for producing a corn plant produced by crossing a corn plant of variety CV466588 with itself or with another corn plant, such as a plant of another variety. The invention further relates to corn seeds and plants produced by crossing plants of variety CV466588 with plants of another variety, such as another inbred line. The invention further relates to the inbred and hybrid genetic complements of plants of variety CV466588.