Corn Variety CV397329 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 pest tolerance, as they often result in unpredictable performance due to genetic non-uniformity among hybrid plants.
Innovation Solution
The development of the corn variety CV397329, which includes specific morphological and physiological characteristics, such as male sterility and herbicide resistance, achieved through genetic modifications and breeding methods like backcrossing and genetic transformation, ensuring uniformity and desirable traits in offspring.
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 highly inbred corn lines through extended self-pollination (6-10 generations) to achieve near-complete homozygosity. This creates uniform genetic backgrounds that, when crossed, produce hybrids with consistent and predictable performance. The inbreeding process eliminates genetic variation within each parental line, ensuring that all plants in a hybrid population inherit the same combination of desirable traits from highly uniform parents.
2Stability of the object's composition
If self-pollination is used to develop homozygous inbred plants, then uniform population is achieved, but loss of genetic diversity occurs
Solution Approach 1:
The patent segments the breeding process into distinct phases: first, multiple independent inbreeding lines are developed through self-pollination to achieve homozygosity. Each line captures different combinations of genetic variants. Then, these segmented lines are crossed to combine their unique genetic backgrounds. This segmentation allows genetic diversity to be preserved across multiple lines while each individual line maintains the genetic uniformity needed for predictable hybrid performance.
3Reliability
If extensive breeding programs are implemented to develop superior inbreds, then desirable characteristics can be achieved, but time and resource consumption increases
Solution Approach 1:
The patent applies preliminary action by pre-developing and maintaining a library of highly inbred lines with known genetic characteristics and desirable traits. When a breeding program is initiated, these pre-characterized inbreds can be immediately crossed without requiring time-consuming development of new lines. The preliminary work of creating and characterizing inbred lines is done in advance, so that hybrid development can proceed rapidly by selecting and crossing appropriate pre-existing lines.
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV397329. The invention thus relates to the plants, seeds and tissue cultures of the variety CV397329, and to methods for producing a corn plant produced by crossing a corn plant of variety CV397329 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 CV397329 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 CV397329.