Wheat Variety W090185D1 Breeding for Trait Stability

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Solution Overview

Problem

Current wheat breeding methods face challenges in combining desirable traits such as high seed yield, disease resistance, drought tolerance, and improved agronomic characteristics into a single, stable wheat variety, while also ensuring genetic uniformity and phenotypic stability.

Innovation Solution

The development of the wheat variety W090185D1, which involves genetic modification and locus conversion techniques, including transgenic approaches and backcrossing, to introduce traits like herbicide resistance, disease resistance, and improved nutritional quality, while maintaining homozygosity and phenotypic stability through rigorous selection and breeding methods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple desirable traits are combined into a single wheat variety through breeding, then the variety shows improved agronomic characteristics, but achieving genetic uniformity and phenotypic stability becomes more difficult

Engineering Contradiction:
Improvecombination of desirable traitsVSAvoidgenetic uniformity and phenotypic stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The breeding process is segmented into distinct stages: initial cross-breeding to combine traits, followed by separate selection phases for disease resistance, yield, and other characteristics. This allows systematic integration of multiple traits while maintaining control over genetic uniformity at each stage.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Once a wheat variety with desired trait combinations and stability is developed, it is replicated through controlled propagation to maintain genetic uniformity. The stable phenotypic characteristics are copied across generations through selective breeding and tissue culture methods.

Inventive Principle:
Principle #26Copying

2Adaptability or versatility

If genetic modification techniques are used to introduce new traits, then the variety shows improved characteristics, but the complexity of the breeding process increases

Engineering Contradiction:
Improveintroduction of new traitsVSAvoidbreeding process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Marker-assisted selection acts as an intermediary tool that simplifies the breeding process. Molecular markers serve as indicators that guide the selection of plants with desired traits, reducing the complexity of traditional phenotypic screening and enabling more efficient trait integration.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Stability of the object's composition

If rigorous selection methods are applied to maintain homozygosity, then phenotypic stability is improved, but the time and resources required for breeding increase

Engineering Contradiction:
Improvephenotypic stabilityVSAvoidbreeding time and resources
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

Molecular marker analysis is performed preliminarily during the breeding process to identify plants with desired homozygous genotypes before phenotypic expression is fully evaluated. This preliminary genetic screening reduces the time required for subsequent phenotypic verification and accelerates the development of stable varieties.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11160232B2Wheat variety W090185D1
Publication Date: 2021.11.02 PIONEER HI BREED INTERNATIONAL INC

AI summary

A wheat variety designated W090185D1, the plants and seeds of wheat variety W090185D1, methods for producing a wheat plant produced by crossing the variety W090185D1 with another wheat plant, and hybrid wheat seeds and plants produced by crossing the variety W090185D1 with another wheat line or plant, and the creation of variants by backcrossing, mutagenesis or transformation of variety W090185D1 are disclosed. Methods for producing other wheat varieties or breeding lines derived from wheat variety W090185D1 and to wheat varieties or breeding lines produced by those methods are also provided.