Corn Variety CV851273 Breeding for Uniform Hybrid Performance
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Solution Overview
Problem
The challenge in corn breeding is to develop uniform corn hybrids with desirable traits such as high yield, disease resistance, and uniform germination, while maintaining genetic stability and avoiding unpredictable performance due to genetic non-uniformity.
Innovation Solution
The development of the corn variety CV851273, which is a stable inbred line that can be used to produce uniform hybrid plants. This variety can be crossed with other inbred lines to create hybrid seeds, and it may also include traits such as male sterility, herbicide tolerance, or insect resistance through genetic modifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If corn plants are bred by cross-pollination between heterozygous plants, then genetic diversity is increased, but uniformity and predictability of performance deteriorate
Solution Approach 1:
The breeding process is segmented into distinct phases: first developing homozygous inbred lines through self-pollination to ensure uniformity, then crossing these standardized inbreds to produce predictable F1 hybrids. This segmentation allows genetic diversity to be introduced only at the crossing stage while maintaining uniformity within each parental line.
Solution Approach 2:
The patent changes the genetic uniformity parameter by transitioning from heterozygous to homozygous states through multi-generation self-pollination. This parameter change ensures that parental inbred lines are genetically uniform, which in turn makes the performance of their hybrid offspring predictable and reliable.
2Reliability
If self-pollination is used to develop uniform inbred lines, then uniformity is improved, but genetic diversity is reduced
Solution Approach 1:
Self-pollination is performed as a preliminary action over multiple generations to establish homozygous inbred lines with uniform genetics. This preliminary uniformity is essential before the subsequent crossing step, ensuring that the genetic diversity introduced later will produce predictable hybrid performance rather than variable outcomes.
Solution Approach 2:
Homozygous inbred lines serve as intermediaries between the goals of uniformity and genetic diversity. These inbreds are uniformly genetically due to self-pollination, yet when crossed with other inbreds, they introduce controlled genetic variation to produce diverse but predictable F1 hybrids.
3Reliability
If multiple generations of selfing and selection are performed to develop inbred plants, then uniformity is improved, but breeding time is extended
Solution Approach 1:
Self-pollination and selection are performed in periodic cycles over multiple generations. Each generation involves selfing, phenotypic selection for desired traits, and advancement to the next generation. This periodic repetition gradually increases homozygosity and uniformity while managing the time investment through systematic progression.
Data Source
AI summary
According to the disclosure, there is provided seed and plants of the corn variety designated CV851273. The disclosure thus relates to the plants, seeds, and tissue cultures of the variety CV851273, and to methods for producing a corn plant produced by crossing a corn plant of variety CV851273 with itself or with another corn plant, such as a plant of another variety. The disclosure further relates to corn seeds and plants produced by crossing plants of variety CV851273 with plants of another variety, such as another inbred line. The disclosure further relates to the inbred and hybrid genetic complements of plants of variety CV851273.