Wheat Variety W02016C1 Breeding Using Molecular Markers

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Solution Overview

Problem

Current wheat breeding methods face challenges in developing stable, high-yielding wheat varieties with good grain quality and resistance to diseases and environmental stresses, as they often require extensive generations of self-pollination and selection, which can be time-consuming and resource-intensive.

Innovation Solution

The development of the wheat variety W020016C1 through a modified pedigree selection method, involving careful selection and backcrossing of homozygous lines to combine desirable traits such as disease resistance, drought tolerance, and improved grain quality, along with the use of molecular markers for genetic stability and trait introgression.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If traditional self-pollination and selection methods are used to develop stable wheat varieties, then genetic stability and uniformity are improved, but breeding time and resource requirements increase significantly

Engineering Contradiction:
Improvegenetic stabilityVSAvoidbreeding time
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The patent applies preliminary action by using molecular markers to pre-identify and select plants carrying desired genetic traits before traditional multi-generation self-pollination is completed. This allows breeders to predict genetic outcomes early in the breeding process, eliminating the need to wait through multiple generations to observe trait expression, thereby significantly reducing breeding time while maintaining genetic stability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent replaces the mechanical/time-intensive process of visual phenotypic selection and multi-generation self-pollination with molecular marker-based genetic analysis. This substitution allows for direct detection of genetic composition without requiring the plant to express traits physically, accelerating the breeding process while ensuring genetic stability through precise marker-assisted selection.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If multiple generations of selection are performed to combine desirable traits, then trait combination completeness is improved, but resource consumption and process complexity increase

Engineering Contradiction:
Improvetrait combination completenessVSAvoidbreeding process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements feedback by using molecular markers to continuously monitor and track the presence of desired genetic traits throughout the breeding process. This real-time genetic feedback allows breeders to make informed decisions at each selection stage, ensuring that all desirable traits are successfully combined in the final variety without requiring excessive generations of selection, thereby reducing process complexity while achieving complete trait combination.

Inventive Principle:
Principle #23Feedback

3Stability of the object's composition

If extensive self-pollination is used to achieve homozygosity, then genetic uniformity is improved, but productivity and yield per unit time decrease

Engineering Contradiction:
Improvegenetic uniformityVSAvoidyield per unit time
Core Design Contradiction:
Stability of the object's compositionVSProductivity

Solution Approach 1:

The patent applies preliminary action by using molecular markers to pre-identify homozygous individuals or those close to homozygosity for desired traits, eliminating the need to perform extensive multi-generation self-pollination to achieve genetic uniformity. This allows breeders to advance selected lines more quickly, significantly improving productivity and yield per unit time while maintaining the genetic uniformity that would otherwise require many generations to achieve.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9137964B1Wheat variety W020016C1
Publication Date: 2015.09.22 PIONEER HI BREED INTERNATIONAL INC

AI summary

A wheat variety designated W020016C1, the plants and seeds of wheat variety W020016C1, methods for producing a wheat plant produced by crossing the variety W020016C1 with another wheat plant, and hybrid wheat seeds and plants produced by crossing the variety W020016C1 with another wheat line or plant, and the creation of variants by mutagenesis or transformation of variety W020016C1. This invention also relates to methods for producing other wheat varieties or breeding lines derived from wheat variety W020016C1 and to wheat varieties or breeding lines produced by those methods.