Wheat Variety 6PZNF07B Trait Integration

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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 milling properties into a single wheat variety, while maintaining uniformity and stability across generations.

Innovation Solution

The development of the wheat variety 6PZNF07B, 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, along with traditional breeding methods to ensure uniformity and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional breeding methods are used to combine multiple desirable traits, then the complexity of the breeding process increases, but the uniformity and stability of trait expression across generations deteriorates

Engineering Contradiction:
Improvecombination of desirable traitsVSAvoiduniformity and stability 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 techniques to directly alter the genetic composition of wheat plants, introducing specific traits through transgenic approaches and locus conversions. This changes the fundamental parameter of genetic inheritance, allowing precise control over trait expression and ensuring uniformity across generations while combining multiple desirable characteristics such as disease resistance, yield improvement, and nutritional quality.

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If genetic modification techniques are used to introduce desirable traits, then the precision of trait introduction improves, but the complexity of the development process increases

Engineering Contradiction:
Improveprecision of trait introductionVSAvoidcomplexity of development process
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the complex genetic modification process into distinct stages: transgenic gene introduction, locus conversion through backcrossing, and trait stabilization. This segmentation allows each step to be optimized and controlled separately, improving precision in trait introduction while making the overall complex process more manageable through systematic breakdown into controllable phases.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent uses intermediary approaches by employing backcrossing as a mediator between transgenic modification and stable variety development. The locus conversion process acts as an intermediary step that transfers desired traits from transgenic lines to elite wheat backgrounds, reducing complexity by using established breeding techniques as bridges between genetic modification and variety stabilization.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If multiple breeding interventions are applied to combine desirable traits, then the improvement in agronomic characteristics increases, but the number of steps and time required increases

Engineering Contradiction:
Improveimprovement in agronomic characteristicsVSAvoidtime required for breeding steps
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-selecting and pre-characterizing parental lines with specific desirable traits before initiating the breeding program. Elite parental germ plasm is pre-evaluated for disease resistance, yield potential, and nutritional quality, allowing the breeding process to proceed more efficiently by avoiding later-generation selection and reducing the overall time required to develop improved wheat varieties with multiple desirable characteristics.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11252888B2Wheat variety 6PZNF07B
Publication Date: 2022.02.22 PIONEER HI BREED INTERNATIONAL INC

AI summary

A wheat variety designated 6PZNF07B, the plants and seeds of wheat variety 6PZNF07B, methods for producing a wheat plant produced by crossing the variety 6PZNF07B with another wheat plant, and hybrid wheat seeds and plants produced by crossing the variety 6PZNF07B with another wheat line or plant, and the creation of variants by backcrossing, mutagenesis or transformation of variety 6PZNF07B are disclosed. Methods for producing other wheat varieties or breeding lines derived from wheat variety 6PZNF07B and to wheat varieties or breeding lines produced by those methods are also provided.