Corn Variety CV092363 Breeding for Genetic Uniformity
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Solution Overview
Problem
Corn breeding aims to combine desirable traits like yield, disease resistance, and uniformity, but existing methods struggle to produce stable, uniform hybrids due to genetic non-uniformity in cross-pollinated plants, leading to unpredictable performance.
Innovation Solution
The development of the corn variety CV092363, which includes a cytoplasmic or nuclear factor for male sterility and specific genetic loci for traits like herbicide tolerance and disease resistance, along with tissue culture methods for regenerating plants with consistent physiological and morphological characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cross-pollination is used to combine genetic traits, 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:
Homozygous inbred plants are developed in advance through multiple generations of self-pollination and selection before the crossing step. This preliminary action ensures that the parental lines have stable, uniform genetics, which then enables predictable hybrid performance when crossed.
2Stability of the object's composition
If self-pollination is used to develop uniform inbred lines, then genetic uniformity is improved, but genetic diversity and adaptability deteriorate
Solution Approach 1:
Self-pollination and selection are performed as a preliminary action to develop homozygous inbred lines with uniform genetics. Once these standardized parental lines are established, they are then crossed to introduce the necessary genetic diversity for adaptability and trait combination.
Solution Approach 2:
The inbred parental lines serve as intermediaries that bridge the need for genetic uniformity (achieved through selfing) and genetic diversity (needed for adaptability). These standardized inbreds are crossed to produce hybrids that combine traits from diverse genetic backgrounds while maintaining uniform performance.
3Adaptability or versatility
If traditional breeding methods are used to develop hybrids, then trait combination is improved, but performance predictability deteriorates due to non-uniform hybrid populations
Solution Approach 1:
The patent applies different breeding strategies to different parts of the breeding program: self-pollination and strict selection are applied to parental line development to ensure uniformity, while controlled cross-pollination is applied to hybrid production to combine traits. This localized application of different methods optimizes both trait combination and performance predictability.
Solution Approach 2:
The breeding approach changes key parameters: parental lines are maintained as homozygous (fixed allele frequencies) for uniformity, while hybrids are produced as heterozygous combinations for trait diversity. This parameter change from homozygosity in parents to heterozygosity in hybrids enables both trait combination and performance predictability.
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV092363. The invention thus relates to the plants, seeds and tissue cultures of the variety CV092363, and to methods for producing a corn plant produced by crossing a corn plant of variety CV092363 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 CV092363 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 CV092363.