Corn Variety CV951892 for Uniform and Stable Hybrid Breeding
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Solution Overview
Problem
Existing corn breeding methods struggle to develop uniform hybrids with desirable traits such as higher yield, disease resistance, and drought tolerance, often resulting in unpredictable performance due to genetic non-uniformity from heterozygous crosses.
Innovation Solution
The development of the corn variety CV951892, which is homozygous and includes genetic modifications for traits like herbicide tolerance, insect resistance, and cytoplasmic male sterility, achieved through backcrossing and genetic transformation, ensuring uniformity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cross-pollination is used to combine desirable traits from different plants, 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 inbreds to combine desirable traits. 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 are genetically uniform and stable, which then enables predictable hybrid performance when crossed.
2Stability of the object's composition
If self-pollination is used to develop uniform inbred plants, then genetic uniformity and true breeding are improved, but genetic diversity and trait combination are worsened
Solution Approach 1:
The method merges two previously separate breeding approaches (self-pollination for uniformity and cross-pollination for diversity) into a unified three-step process. By combining homozygous inbred development through selfing with subsequent controlled crosses, the system achieves both genetic uniformity within lines and trait combination between lines.
3Stability of the object's composition
If homozygous inbred plants are developed through multiple generations of selfing, then uniformity and true breeding are improved, but time and breeding complexity are worsened
Solution Approach 1:
The breeding process utilizes the plant's natural self-pollination mechanism to achieve homozygosity without requiring complex external intervention. By allowing plants to self-pollinate naturally over multiple generations and simply selecting for desired phenotypes, the system achieves genetic uniformity through self-service rather than complex artificial processes.
4Stability of the object's composition
If homozygous inbred plants are developed through multiple generations of selfing, then uniformity and true breeding are improved, but breeding complexity and evaluation requirements are worsened
Solution Approach 1:
The system uses the plant's natural self-pollination and phenotypic expression to automatically indicate genetic uniformity. True breeding is self-verified when inbred plants produce uniform progeny without requiring complex molecular or genetic analysis, simplifying the breeding process while maintaining genetic uniformity.
Data Source
AI summary
According to the disclosure, there is provided seed and plants of the corn variety designated CV951892. The disclosure thus relates to the plants, seeds, and tissue cultures of the variety CV951892, and to methods for producing a corn plant produced by crossing a corn plant of variety CV951892 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 CV951892 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 CV951892.