Hybrid Corn CH011152 Cytoplasmic Male Sterility Breeding

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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 efficiency of breeding processes.

Innovation Solution

The development of the hybrid corn variety CH011152, which incorporates genetic modifications and cytoplasmic male sterility to prevent self-pollination, along with specific traits like herbicide resistance and disease resistance, achieved through genetic transformation and backcrossing techniques, allowing for controlled cross-pollination and stable inheritance of desirable characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional breeding methods are used to develop hybrid corn varieties, then genetic diversity and trait combination are improved, but self-pollination occurs which reduces breeding efficiency and genetic stability

Engineering Contradiction:
Improvetrait combinationVSAvoidbreeding efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent applies preliminary anti-action by introducing cytoplasmic male sterility (CMS) into the female parent before crossing. This prevents self-pollination in advance, ensuring that all pollen comes from the male parent and hybrid seeds are produced with high efficiency and genetic stability, directly resolving the contradiction between trait combination and breeding efficiency

Inventive Principle:
Principle #9Preliminary anti-action

2Productivity

If cytoplasmic male sterility is introduced to prevent self-pollination, then hybrid seed production efficiency is improved, but device complexity and breeding process complexity increase

Engineering Contradiction:
Improvehybrid seed production efficiencyVSAvoidbreeding process complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies self-service by utilizing the natural cytoplasmic male sterility mechanism of the female parent, which automatically prevents self-pollination without requiring external intervention or complex mechanical devices. The sterile female parent self-regulates to accept only cross-pollination, simplifying the overall breeding process while maintaining high hybrid seed production efficiency

Inventive Principle:
Principle #25Self-service

3Manufacturing precision

If genetic transformation techniques are used to introduce desirable traits, then trait precision and uniformity are improved, but manufacturing complexity and genetic stability risks increase

Engineering Contradiction:
Improvetrait introduction precisionVSAvoidgenetic modification complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent uses controlled cross-pollination as an intermediary mechanism to introduce desirable traits from the male parent to the female parent. This natural genetic transfer process achieves precise trait introduction and uniformity in the hybrid offspring without requiring complex genetic transformation procedures, thereby reducing manufacturing complexity while maintaining precision

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11439081B2Plants and seeds of hybrid corn variety CH011152
Publication Date: 2022.09.13 MONSANTO TECHNOLOGY LLC

AI summary

According to the invention, there is provided seed and plants of the hybrid corn variety designated CH011152. The invention thus relates to the plants, seeds and tissue cultures of the variety CH011152, and to methods for producing a corn plant produced by crossing a corn plant of variety CH011152 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 CH011152.