Corn Variety CV024085 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 due to genetic non-uniformity in cross-pollinated plants, which requires the development of stable inbred plants and precise control of pollination processes.

Innovation Solution

The development of the corn variety CV024085, which includes methods for producing inbred corn plants with specific traits like male sterility, herbicide tolerance, and disease resistance through cytoplasmic or nuclear factors, and the use of tissue cultures to regenerate plants with consistent physiological and morphological characteristics, along with processes for controlled cross-pollination to produce hybrid seeds.

Engineering Contradictions & Design Principles

VSEngineering 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 predictability deteriorate

Engineering Contradiction:

Improvegenetic diversityVSAvoidgenetic uniformity

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The breeding process is segmented into distinct phases: first developing homozygous inbred lines through self-pollination to achieve genetic uniformity, then crossing these stabilized lines to introduce genetic diversity. This segmentation allows each phase to optimize for its specific goal without compromising the other.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Inbred lines are developed and stabilized through multiple generations of self-pollination before the crossing stage. This preliminary action ensures genetic uniformity is established in the parental lines, which then enables predictable hybrid performance when crossed.

Inventive Principle:

Principle #10Preliminary action

2Stability of the object's composition

If self-pollination is used to develop inbred lines, then genetic uniformity is improved, but time to achieve stability and productivity deteriorates

Engineering Contradiction:

Improvegenetic uniformityVSAvoidtime to achieve stability

Core Design Contradiction:

Stability of the object's compositionVSLoss of time

Solution Approach 1:

Molecular markers are used to substitute for traditional phenotypic selection methods. This allows breeders to track and confirm homozygosity at specific gene loci more rapidly, reducing the number of generations needed to achieve genetic stability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

Once stable inbred lines are developed, they serve as reusable genetic copies that can be consistently crossed to produce uniform hybrid progeny. The standardized breeding protocol creates replicable outcomes across different breeding cycles.

Inventive Principle:

Principle #26Copying

3Stability of the object's composition

If multiple breeding generations are conducted to achieve homozygosity, then genetic stability is improved, but breeding complexity and resource requirements worsen

Engineering Contradiction:

Improvegenetic stabilityVSAvoidbreeding program complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

Molecular marker analysis provides feedback on the genetic composition of breeding populations, allowing breeders to monitor progress toward homozygosity and make informed decisions about when to advance to the next breeding stage or select specific plants for further development.

Inventive Principle:

Principle #23Feedback

4Manufacturing precision

If precise pollination control is implemented to produce uniform hybrids, then hybrid uniformity is improved, but operational complexity and cost worsen

Engineering Contradiction:

Improvehybrid uniformityVSAvoidpollination control difficulty

Core Design Contradiction:

Manufacturing precisionVSEase of operation

Solution Approach 1:

The male reproductive structures (tassels) are removed from female parent plants to eliminate the possibility of self-pollination. This extraction of the pollination control problem simplifies the breeding operation by ensuring that only controlled cross-pollination from the male parent can occur.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS7619153B1Plants and seeds of corn variety CV024085

Publication Date: 2009.11.17 MONSANTO TECHNOLOGY LLC

AI summary

According to the invention, there is provided seed and plants of the corn variety designated CV024085. The invention thus relates to the plants, seeds and tissue cultures of the variety CV024085, and to methods for producing a corn plant produced by crossing a corn plant of variety CV024085 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 CV024085 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 CV024085.