Corn Variety CV864954: Homozygous Inbreds for Uniform Hybrids
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Solution Overview
Problem
Existing corn breeding techniques struggle to develop uniform hybrids with desirable traits such as higher yield, disease resistance, and improved agronomic qualities due to genetic non-uniformity in cross-pollinated plants.
Innovation Solution
The development of the corn variety CV864954, which is homozygous and self-pollinating, with the option for cytoplasmic male sterility or genetic modifications to introduce traits like herbicide tolerance, insect resistance, and disease resistance, along with methods for controlled cross-pollination to ensure uniformity and desired characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cross-pollination is used to develop corn hybrids, then genetic diversity and adaptability are improved, but genetic uniformity and predictability of performance deteriorate
Solution Approach 1:
The breeding program segments the development process into distinct phases: first developing homozygous inbred lines through self-pollination to ensure genetic uniformity, then crossing these standardized inbreds to create hybrids with controlled genetic diversity. This segmentation allows each phase to optimize for its specific goal without compromising the other.
Solution Approach 2:
The patent applies preliminary action by first establishing homozygous inbred parental lines with desired traits through multiple generations of self-pollination and selection before performing the cross-pollination to create hybrids. This preliminary standardization of parental genetics ensures that the resulting hybrids will have uniform and predictable performance.
2Stability of the object's composition
If self-pollination is used to develop homozygous inbred plants, then genetic uniformity and true breeding are improved, but genetic diversity and adaptability deteriorate
Solution Approach 1:
Self-pollination is used as a preliminary action to create homozygous inbred lines with uniform genetics and desired traits. Once these standardized inbreds are established, they serve as parental sources for cross-pollination, which then reintroduces genetic diversity in a controlled manner to produce adaptive hybrids.
Solution Approach 2:
The breeding process segments the use of self-pollination and cross-pollination into distinct functional phases: self-pollination for creating uniform inbred parental lines, followed by cross-pollination for generating diverse yet predictable hybrids. This segmentation allows each pollination method to serve its optimal purpose without negative consequences.
3Reliability
If extensive breeding programs are implemented to develop superior inbred plants, then desirable traits such as yield and resistance are improved, but time and resource investment increase
Solution Approach 1:
The patent applies preliminary action by pre-developing and characterizing homozygous inbred lines with known desirable traits before hybrid creation. This preliminary work, though time-consuming, establishes a standardized genetic foundation that accelerates subsequent hybrid development and ensures reliable trait expression without requiring extensive re-breeding for each new hybrid.
Solution Approach 2:
The breeding program utilizes parameter changes by selecting for specific homozygous genotypes and genetic markers in the inbred lines that are known to confer desirable traits. This targeted selection based on genetic parameters allows for more efficient breeding compared to traditional phenotypic selection alone, reducing the time to develop superior inbreds.
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV864954. The invention thus relates to the plants, seeds and tissue cultures of the variety CV864954, and to methods for producing a corn plant produced by crossing a corn plant of variety CV864954 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 CV864954 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 CV864954.