Corn Variety CV119314 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 uniform germination, as they often result in unpredictable performance due to genetic non-uniformity among hybrid plants.
Innovation Solution
The development of the corn variety CV119314, which is an inbred corn plant with specific physiological and morphological characteristics, including cytoplasmic male sterility and heritable traits like herbicide tolerance and disease resistance, achieved through backcrossing and genetic transformation techniques, ensuring stability and uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cross-pollination is used to develop corn hybrids, then genetic diversity and trait combination are improved, but genetic uniformity and performance predictability deteriorate
Solution Approach 1:
The breeding process is segmented into distinct phases: first developing homozygous inbred lines through self-pollination to ensure genetic uniformity, then crossing these standardized lines to introduce controlled genetic diversity. This segmentation allows each phase to optimize for its specific goal without compromising the other.
Solution Approach 2:
Inbred lines are developed and standardized through multiple generations of self-pollination before the crossing step. This preliminary action ensures that parental lines have stable, uniform genetics, which then enables predictable hybrid performance when crossed, rather than attempting to achieve uniformity after cross-pollination.
2Stability of the object's composition
If self-pollination is used to develop inbred lines, then genetic uniformity is improved, but genetic diversity and adaptability deteriorate
Solution Approach 1:
Self-pollination is used as a preliminary action to establish genetically uniform inbred lines before the diversity-introducing crossing step. This preliminary uniformity is necessary to ensure that subsequent hybrids have predictable performance, as crossing standardized parental lines produces consistent F1 offspring.
Solution Approach 2:
The breeding program segments the population into standardized inbred lines first, then combines them through crossing. This segmentation allows self-pollination to achieve uniformity within lines while the crossing step introduces diversity between lines, resolving the contradiction between uniformity and diversity.
3Adaptability or versatility
If traditional breeding methods are used to combine desirable traits, then trait variety is improved, but performance predictability and uniformity deteriorate
Solution Approach 1:
The method uses homozygous inbred lines as parental material, ensuring genetic homogeneity within each parent. This homogeneity is maintained through multiple generations of self-pollination and selection, ensuring that all plants within a parental line are genetically identical and will produce uniform hybrids.
Solution Approach 2:
Desirable traits are consolidated into standardized inbred lines through preliminary breeding and selection work. Once parental lines are established with desired traits and genetic uniformity, crossing these lines produces predictable hybrid performance, rather than attempting to combine traits in heterogeneous populations.
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV119314. The invention thus relates to the plants, seeds and tissue cultures of the variety CV119314, and to methods for producing a corn plant produced by crossing a corn plant of variety CV119314 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 CV119314 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 CV119314.