Corn Variety CV795122 Uniform Hybrid Breeding
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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 CV795122, which is a stable inbred line with specific traits like male sterility, herbicide tolerance, and disease resistance, achieved through backcrossing and genetic transformation techniques, ensuring uniformity and desirable characteristics in progeny plants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional breeding methods (pedigree breeding and recurrent selection) are used to develop corn hybrids, then various desirable traits can be combined in a single variety, but the resulting hybrid plants exhibit genetic non-uniformity leading to unpredictable performance
Solution Approach 1:
The breeding process is segmented into distinct stages: developing homozygous inbred parental lines through self-pollination and selection, then crossing these standardized inbreds to produce uniform F1 hybrids. This segmentation ensures genetic uniformity within each stage while combining diverse traits across stages.
Solution Approach 2:
The patent changes the genetic uniformity parameter by enforcing homozygosity in parental inbred lines through multi-generation self-pollination and selection. This parameter change ensures that all plants in the F1 hybrid generation are genetically uniform, making performance predictable while still combining multiple desirable traits from different inbred parents.
2Manufacturing precision
If self-pollination is used to develop homozygous inbred plants over many generations, then uniform true-breeding progeny are produced, but the breeding process requires extensive time and generations of selection
Solution Approach 1:
Homozygous inbred parental lines are developed in advance through extended self-pollination and selection before the hybridization stage. This preliminary action ensures genetic uniformity is established beforehand, allowing the actual hybrid breeding process to proceed efficiently without repeated generations of selection.
Solution Approach 2:
Once homozygous inbred lines are established, they serve as standardized genetic copies that can be repeatedly crossed with other inbreds. These inbred lines act as stable genetic templates that can be propagated and used multiple times, reducing the need to repeat lengthy selection processes.
3Adaptability or versatility
If cross-pollination is used to produce hybrid plants from heterozygous parents, then genetic diversity is increased, but the resulting population is non-uniform with unpredictable performance
Solution Approach 1:
Instead of crossing heterozygous plants to generate diversity, the patent inverts the approach by crossing homozygous inbred plants. This inversion ensures that the F1 hybrid generation receives uniform heterozygous genotypes from standardized parents, achieving both genetic diversity (through cross-breeding different inbreds) and population uniformity (through the consistency of homozygous parental lines).
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV795122. The invention thus relates to the plants, seeds and tissue cultures of the variety CV795122, and to methods for producing a corn plant produced by crossing a corn plant of variety CV795122 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 CV795122 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 CV795122.