Corn Variety CV479969 Genetic Uniformity and Trait Stability
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 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 CV479969, which includes specific morphological and physiological characteristics, such as male sterility and herbicide resistance, achieved through genetic locus modifications and cytoplasmic traits, ensuring uniformity and desirable agronomic traits.
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 (9 or more generations of self-pollination) to achieve genetic uniformity. This ensures that all plants in the breeding population have identical genotypes, eliminating the genetic non-uniformity that causes unpredictable performance while maintaining the ability to combine desirable traits through controlled crosses.
2Stability of the object's composition
If self-pollination is used to develop homozygous inbred plants, then uniform population is achieved, but time to develop stable lines increases
Solution Approach 1:
The patent employs preliminary action by maintaining large populations of highly inbred lines and pre-evaluating them for desirable traits before crossing. This allows breeders to select the best parental combinations in advance, reducing the overall breeding cycle time while maintaining genetic uniformity through extended self-pollination periods.
3Adaptability or versatility
If cross-pollination is used to produce hybrid plants, then genetic diversity is increased, but uniformity of the hybrid population decreases
Solution Approach 1:
The patent resolves this contradiction by crossing two highly homozygous inbred lines, where each parent is genetically uniform. The resulting F1 hybrid population is uniformly heterozygous, expressing consistent traits while benefiting from hybrid vigor. This approach maintains population uniformity while incorporating genetic diversity from two distinct parental lines.
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV479969. The invention thus relates to the plants, seeds and tissue cultures of the variety CV479969, and to methods for producing a corn plant produced by crossing a corn plant of variety CV479969 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 CV479969 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 CV479969.