Hybrid Corn CH011235 Male Sterility and Trait Integration

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Solution Overview

Problem

Current corn breeding techniques face challenges in developing hybrid varieties that combine desirable traits such as high yield, disease resistance, and uniformity, while maintaining genetic stability and avoiding self-pollination, which limits the introduction of new genetic modifications and traits.

Innovation Solution

The development of the hybrid corn variety CH011235, which incorporates a cytoplasmic or nuclear factor for male sterility and genetic modifications conferring traits like herbicide resistance, disease resistance, and altered metabolism, using techniques like genome editing and transgenic integration, along with tissue culture methods for regenerating plants with specific characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional corn breeding techniques are used, then hybrid varieties can be developed with desirable traits, but self-pollination occurs which limits genetic modification and trait introduction

Engineering Contradiction:
Improveintroduction of new genetic modificationsVSAvoidprevention of self-pollination
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent removes the capability for self-pollination by introducing male-sterile traits through genetic modification. This extraction of the self-pollination function allows complete control over pollination, enabling reliable introduction of new genetic traits without contamination from self-fertilization.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses male-sterile plants as an intermediary mechanism to control pollination. These plants cannot self-pollinate but can be controlled to cross-pollinate with specific selected parents, serving as a mediator that ensures genetic purity and enables precise trait introduction.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If male sterility factors are introduced to prevent self-pollination, then cross-pollination control is improved, but genetic stability may be compromised

Engineering Contradiction:
Improvecontrol of cross-pollinationVSAvoidgenetic stability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent applies male sterility locally to specific plants in the breeding program rather than universally. By selectively modifying only the female parent plants to be male-sterile while keeping male parent plants fertile, the system maintains genetic stability in the overall population while achieving precise cross-pollination control where needed.

Inventive Principle:
Principle #3Local quality

3Object-affected harmful factors

If genetic modifications are introduced for herbicide resistance and disease resistance, then crop protection is enhanced, but complexity of breeding program increases

Engineering Contradiction:
Improveresistance to herbicides and diseasesVSAvoidcomplexity of breeding program
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent combines multiple desirable traits including male sterility, herbicide resistance, and disease resistance into single integrated plant lines. By merging these traits through coordinated breeding programs, the system achieves enhanced crop protection and pollination control simultaneously, rather than developing separate programs for each trait.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12016298B2Plants and seeds of hybrid corn variety CH011235
Publication Date: 2024.06.25 MONSANTO TECHNOLOGY LLC

AI summary

According to the invention, there is provided seed and plants of the hybrid corn variety designated CH011235. The invention thus relates to the plants, seeds and tissue cultures of the variety CH011235, and to methods for producing a corn plant produced by crossing a corn plant of variety CH011235 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 CH011235.