Wheat Variety W030189G1 Breeding Segmentation

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Solution Overview

Problem

Current wheat breeding methods face challenges in developing stable, high-yielding wheat varieties with desirable traits such as disease resistance, drought tolerance, and improved grain quality, which are essential for commercial production and adaptation to various environmental conditions.

Innovation Solution

The development of a new wheat variety, W030189G1, through a modified pedigree selection method, combining homozygous lines to achieve uniformity and stability, along with the use of molecular markers for genetic analysis and potential transformation techniques to introduce desirable traits like disease resistance and improved grain quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional wheat breeding methods are used, then existing varieties can be maintained, but stable high-yielding varieties with multiple desirable traits (disease resistance, drought tolerance, improved grain quality) cannot be developed

Engineering Contradiction:
Improvestability of wheat varietyVSAvoidyield potential
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The breeding program segments the development process into distinct phases: selecting parent lines with specific traits, crossing them to create F1 hybrids, selfing to produce F2 populations, and selecting through multiple generations (F3-F6) to achieve homozygosity and stability. This segmentation allows systematic accumulation of desirable traits while maintaining reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent merges multiple desirable traits into a single variety by crossing parent lines that possess different traits (e.g., disease resistance, drought tolerance, grain quality) and combining them through controlled selfing and selection. The resulting variety integrates all these traits simultaneously, achieving both high productivity and reliability.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If multiple desirable traits are combined in a single variety, then productivity and reliability improve, but the breeding process becomes more complex and time-consuming

Engineering Contradiction:
Improveadaptation to environmental conditionsVSAvoidbreeding program complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The program performs preliminary actions by first selecting and characterizing parent lines with specific desirable traits before crossing them. This preliminary selection and characterization phase ensures that the parents possess the required traits, simplifying the subsequent crossing and selection processes while maintaining adaptability to various environmental conditions.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The breeding program incorporates feedback mechanisms through evaluation of plant performance across multiple generations and environments. Observations from field trials and laboratory analyses feed back into the selection process, allowing breeders to adjust their choices to achieve the desired combination of traits while managing program complexity.

Inventive Principle:
Principle #23Feedback

3Stability of the object's composition

If self-pollination is used to achieve homozygosity, then genetic uniformity is improved, but the process requires many generations and intervention for pollination control

Engineering Contradiction:
Improvehomozygosity of plantVSAvoidbreeding cycle duration
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The program uses preliminary action by creating F1 hybrids from cross-pollinated parent lines before initiating the selfing process. This F1 generation establishes the genetic foundation, and subsequent selfing (F2-F6) then efficiently achieves homozygosity, reducing the total time required compared to selfing alone from the beginning.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The breeding strategy employs dynamics by switching from cross-pollination in the F1 generation to self-pollination in subsequent generations. This dynamic approach allows controlled pollination intervention initially, then transitions to natural self-pollination to achieve homozygosity, optimizing both time and genetic stability.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS9066491B1Wheat variety W030189G1
Publication Date: 2015.06.30 PIONEER HI BREED INTERNATIONAL INC

AI summary

A wheat variety designated W030189G1, the plants and seeds of wheat variety W030189G1, methods for producing a wheat plant produced by crossing the variety W030189G1 with another wheat plant, and hybrid wheat seeds and plants produced by crossing the variety W030189G1 with another wheat line or plant, and the creation of variants by mutagenesis or transformation of variety W030189G1. This invention also relates to methods for producing other wheat varieties or breeding lines derived from wheat variety W030189G1 and to wheat varieties or breeding lines produced by those methods.