CV751695 Corn Variety Genetic Uniformity Breeding
Find Innovative SolutionsGenerate Solutions
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 CV751695, 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 stability and uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional corn breeding techniques are used to develop hybrids, then various desirable traits can be combined in a single variety, but genetic non-uniformity among hybrid plants results in unpredictable performance
Solution Approach 1:
The breeding process is segmented into distinct phases: developing homozygous inbred lines through self-pollination, then crossing these standardized lines to produce hybrids. This segmentation ensures each phase contributes to uniformity, with inbred lines providing genetic stability and crosses introducing desired trait combinations while maintaining predictability.
Solution Approach 2:
The patent changes the genetic uniformity parameter by using homozygous inbred plants as parents. These inbreds have fixed, uniform genotypes, and their crosses produce hybrids with consistent heterozygous genotypes. This parameter change from variable breeding populations to fixed inbred lines resolves the performance predictability issue while still allowing combination of desirable traits through selective crossing.
2Stability of the object's composition
If self-pollination is used to develop uniform inbred plants, then genetic uniformity is achieved, but the process requires extensive generations and time
Solution Approach 1:
The patent applies preliminary action by developing and maintaining a collection of pre-established homozygous inbred lines with known, stable genotypes. These inbreds are developed in advance through self-pollination and selection, then stored as a breeding resource. When hybrids are needed, breeders can immediately cross appropriate pre-developed inbreds rather than starting the lengthy selfing process anew, significantly reducing the time required while maintaining genetic uniformity.
3Adaptability or versatility
If cross-pollination is used to produce hybrid plants with desirable traits, then trait combination is achieved, but genetic non-uniformity makes performance unpredictable
Solution Approach 1:
The patent applies local quality by making the parent inbred lines genetically uniform and homozygous at specific loci while allowing heterozygosity at other loci contributing to desirable traits. The cross-pollination process is controlled to ensure uniform hybrid production, creating local genetic uniformity in the hybrid generation where it is most needed for performance predictability, while still achieving trait combination through selective parental selection.
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV751695. The invention thus relates to the plants, seeds and tissue cultures of the variety CV751695, and to methods for producing a corn plant produced by crossing a corn plant of variety CV751695 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 CV751695 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 CV751695.