Hybrid Corn CH149728 Genetic Stability and Uniformity

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Corn breeding aims to combine desirable traits like higher yield, disease resistance, and uniformity, but existing methods struggle to develop stable inbred plants with predictable performance due to genetic non-uniformity in hybrid plants.

Innovation Solution

The development of the hybrid corn variety CH149728, which incorporates cytoplasmic or nuclear factors for male sterility and desired traits like herbicide resistance, insect resistance, and disease resistance, using genetic transformation techniques and backcrossing methods to introduce specific genetic loci and cytoplasmically-inherited traits, ensuring consistent performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If cross-pollination is used to create hybrid plants, then genetic diversity and desirable traits are combined, but genetic non-uniformity results making performance unpredictable

Engineering Contradiction:

Improvegenetic diversityVSAvoidperformance predictability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The breeding process is segmented into distinct stages: developing uniform inbred parent lines through self-pollination, then crossing them to produce hybrid seeds. This segmentation allows genetic diversity to be captured in the hybrid while maintaining uniformity within each parent line, resolving the contradiction between diversity and predictability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Inbred parent lines are developed to be genetically homogeneous through multiple generations of self-pollination and selection. This homogeneity in the parents ensures that all hybrid offspring receive identical genetic combinations, making performance predictable despite the cross-pollination mechanism

Inventive Principle:

Principle #33Homogeneity

2Stability of the object's composition

If self-pollination is used to develop inbred plants, then genetic uniformity is achieved, but time and generations required for breeding increase

Engineering Contradiction:

Improvegenetic uniformityVSAvoidbreeding time

Core Design Contradiction:

Stability of the object's compositionVSLoss of time

Solution Approach 1:

Inbred parent lines are developed in advance through self-pollination and selection before the hybrid breeding program begins. This preliminary action creates ready-to-use uniform parents that can be crossed immediately, reducing the overall breeding time while maintaining genetic uniformity

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Once uniform inbred lines are established, they serve as reusable genetic copies that can be crossed repeatedly to produce hybrid seeds. This copying approach eliminates the need to重新 develop uniform lines for each hybrid batch, significantly reducing breeding time while preserving genetic uniformity

Inventive Principle:

Principle #26Copying

Data Source

PatentUS8912410B2Plants and seeds of hybrid corn variety CH149728

Publication Date: 2014.12.16 MONSANTO TECHNOLOGY LLC

AI summary

According to the invention, there is provided seed and plants of the hybrid corn variety designated CH149728. The invention thus relates to the plants, seeds and tissue cultures of the variety CH149728, and to methods for producing a corn plant produced by crossing a corn plant of variety CH149728 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 CH149728.