Wheat Variety XW15C Genetic Modification for Multi-Trait Stability

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Solution Overview

Problem

Current wheat breeding methods face challenges in developing varieties that combine desirable traits such as high seed yield, disease resistance, drought tolerance, and improved agronomic characteristics in a single variety, while maintaining uniformity and stability across generations.

Innovation Solution

The development of the wheat variety XW15C, which involves genetic modification and locus conversion through transgenic techniques, including the introduction of specific genes for traits like herbicide resistance, disease resistance, and abiotic stress tolerance, combined with traditional breeding methods like backcrossing and selection, to create a stable and uniform germplasm.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional breeding methods are used to combine multiple desirable traits, then the variety can achieve high seed yield, disease resistance, and drought tolerance, but it requires numerous steps involving significant intervention and takes considerable time to develop

Engineering Contradiction:
Improvedisease resistanceVSAvoidbreeding development time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-introducing multiple desirable traits (disease resistance, drought tolerance, yield improvement) through genetic modification and locus conversion before traditional breeding steps. This allows the breeder to start with germplasm that already contains the desired traits, significantly reducing the time required for trait combination compared to traditional sequential breeding approaches.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses genetic modification techniques and locus conversion as intermediary methods to facilitate the combination of desirable traits. These intermediary approaches enable direct introduction and precise manipulation of specific genes, acting as a bridge between traditional breeding and the final multi-trait variety, thereby accelerating the breeding process while maintaining reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If multiple desirable traits are combined from parental germplasm, then the variety achieves improved agronomic characteristics, but maintaining uniformity and stability across generations becomes challenging

Engineering Contradiction:
Improveagronomic characteristicsVSAvoiduniformity across generations
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent applies parameter changes by using genetic modification and locus conversion to precisely control the genetic parameters of the wheat variety. This allows for stable inheritance of multiple traits by ensuring proper genetic fixation and homozygosity, thereby maintaining uniformity across generations while achieving diverse agronomic characteristics.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent achieves multi-functionality by combining multiple desirable traits (disease resistance, drought tolerance, yield improvement) into a single wheat variety. This universal approach allows the variety to perform multiple functions simultaneously, and through proper breeding techniques, ensures stable transmission of all these functions to subsequent generations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If genetic modification and transgenic techniques are used to introduce specific genes, then traits like herbicide resistance and abiotic stress tolerance are improved, but the complexity of the breeding process increases

Engineering Contradiction:
Improveabiotic stress toleranceVSAvoidbreeding process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces traditional mechanical breeding methods with genetic modification and transgenic techniques. This substitution allows for direct introduction of specific genes conferring abiotic stress tolerance and herbicide resistance, achieving reliable trait improvement while the complexity is managed through standardized molecular biology protocols and selective breeding strategies.

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

Data Source

PatentUS9924680B1Wheat variety XW15C
Publication Date: 2018.03.27 PIONEER HI BREED INTERNATIONAL INC

AI summary

A wheat variety designated XW15C, the plants and seeds of wheat variety XW15C, methods for producing a wheat plant produced by crossing the variety XW15C with another wheat plant, and hybrid wheat seeds and plants produced by crossing the variety XW15C with another wheat line or plant, and the creation of variants by backcrossing, mutagenesis or transformation of variety XW15C are disclosed. Methods for producing other wheat varieties or breeding lines derived from wheat variety XW15C and to wheat varieties or breeding lines produced by those methods are also provided.