Hybrid Corn CH338635 Uniformity via Segmentation

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Solution Overview

Problem

Current corn breeding techniques face challenges in developing uniform hybrid plants with desirable traits such as high yield, disease resistance, and uniformity, as they often result in non-uniform and unpredictable performance due to genetic differences between cross-pollinated plants.

Innovation Solution

The development of the hybrid corn variety CH338635, which incorporates cytoplasmic or nuclear factors for male sterility and desired traits like herbicide resistance, insect resistance, and disease resistance, using techniques such as backcrossing and genetic transformation to introduce specific genetic loci, ensuring consistent performance and stability.

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 uniformity and predictability of performance deteriorate

Engineering Contradiction:

Improvegenetic diversityVSAvoiduniformity

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The breeding process is segmented into distinct phases: first developing homozygous inbred parental lines through self-pollination to ensure uniformity, then crossing these standardized parents to produce hybrid offspring that exhibit both genetic diversity and uniform performance characteristics

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Homozygous inbred parental lines are developed and standardized before the hybrid crossing stage. This preliminary development of uniform parents ensures that the resulting hybrids will exhibit consistent and predictable performance while still benefiting from genetic diversity through cross-pollination

Inventive Principle:

Principle #10Preliminary action

2Manufacturing precision

If self-pollination is used to develop homozygous inbred plants, then uniformity and stability are improved, but genetic diversity and adaptability deteriorate

Engineering Contradiction:

ImproveuniformityVSAvoidgenetic diversity

Core Design Contradiction:

Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The breeding program is divided into separate stages: self-pollination is used in the inbred line development stage to achieve uniformity, while cross-pollination is used in the hybrid production stage to restore genetic diversity and produce uniform hybrids with heterotic advantages

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Homozygous inbred lines are developed through preliminary self-pollination and selection to establish uniform parental stocks. These standardized inbreds then serve as parents for hybrid crosses that will exhibit both uniformity and genetic diversity

Inventive Principle:

Principle #10Preliminary action

3Productivity

If multiple breeding methods are combined to develop superior hybrids, then desirable traits and yield are improved, but breeding program complexity increases

Engineering Contradiction:

ImproveyieldVSAvoidbreeding program complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The breeding program is organized into distinct modular components: inbred line development through self-pollination, hybrid crossing to combine desirable traits, and evaluation phases. This segmentation allows systematic development of superior hybrids while managing program complexity through structured procedures

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS9210863B2Plants and seeds of hybrid corn variety CH338635

Publication Date: 2015.12.15 MONSANTO TECHNOLOGY LLC

AI summary

According to the invention, there is provided seed and plants of the hybrid corn variety designated CH338635. The invention thus relates to the plants, seeds and tissue cultures of the variety CH338635, and to methods for producing a corn plant produced by crossing a corn plant of variety CH338635 with itself or with another corn plant, such as a plant of another variety. The invention further relates to genetic complements of plants of variety CH338635.