Corn Variety CV969822 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 drought tolerance, as they often result in unpredictable performance due to genetic non-uniformity among hybrid plants.
Innovation Solution
The development of the corn variety CV969822, which includes a cytoplasmic or nuclear factor for male sterility and additional heritable traits like herbicide tolerance and disease resistance, achieved through backcrossing and genetic transformation, ensuring a stable and uniform genetic makeup.
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 results in unpredictable performance
Solution Approach 1:
The patent applies homogeneity by developing inbred lines that are genetically uniform through repeated self-pollination and selection. This ensures that all plants in a hybrid population have identical genetic backgrounds, eliminating the non-uniformity that causes unpredictable performance while still allowing combination of desirable traits from different inbred lines.
Solution Approach 2:
The patent segments the breeding process into distinct phases: developing pure inbred lines through self-pollination, selecting specific parental lines with desired traits, and then crossing them to produce uniform hybrids. This segmentation allows systematic combination of traits while maintaining genetic uniformity within each hybrid population.
2Manufacturing precision
If self-pollination is used to develop uniform inbred plants, then genetic uniformity is achieved, but time and generations required for breeding increase
Solution Approach 1:
The patent applies preliminary action by pre-developing and characterizing multiple inbred lines with specific desirable traits before combining them into hybrids. This advance preparation of uniform parental lines with known characteristics accelerates the overall breeding process by eliminating the need for extensive field testing of non-uniform F2 populations.
3Adaptability or versatility
If cross-pollination is used to produce hybrid plants, then genetic diversity is introduced, but non-uniformity makes performance unpredictable
Solution Approach 1:
The patent resolves this contradiction by ensuring that both parental lines used in cross-pollination are highly uniform inbreds. This allows the introduction of genetic diversity through crossing while maintaining population uniformity, because all F1 hybrids receive identical genetic contributions from each parent, resulting in uniform heterozygous offspring with predictable performance.
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV969822. The invention thus relates to the plants, seeds and tissue cultures of the variety CV969822, and to methods for producing a corn plant produced by crossing a corn plant of variety CV969822 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 CV969822 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 CV969822.