6PMZM22B Wheat Variety Through Backcrossing and Locus Conversion

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Solution Overview

Problem

Existing wheat varieties lack a comprehensive combination of desirable traits such as higher seed yield, disease resistance, drought and heat tolerance, altered milling properties, and improved agronomic characteristics, limiting their adaptability and commercial utility.

Innovation Solution

Development of the wheat variety 6PMZM22B, which is homozygous and stable, incorporating genetic modifications and locus conversions to introduce traits like herbicide resistance, disease resistance, and altered nutritional quality, achieved through methods like genetic transformation and backcrossing, ensuring uniformity and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional wheat breeding methods are used, then variety development is straightforward, but the combination of desirable traits (yield, disease resistance, stress tolerance, milling properties) is insufficient

Engineering Contradiction:
Improvecombination of desirable traitsVSAvoidseed yield
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent combines multiple desirable traits from different parental lines into a single wheat variety 6PMZM22B, merging disease resistance, stress tolerance, and improved agronomic characteristics that were previously分散 in different varieties

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The wheat variety 6PMZM22B is developed to perform multiple functions simultaneously: it provides high yield, disease resistance, stress tolerance, and improved milling properties, making it a universal solution for multiple agricultural challenges

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

2Reliability

If genetic modifications are introduced to improve traits, then adaptability and resistance are enhanced, but variety complexity increases

Engineering Contradiction:
Improvedisease resistanceVSAvoidgenetic modification complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent uses backcrossing as an intermediary method to transfer specific desirable traits from donor parents to the recurrent parent 22B, allowing gradual introduction of resistance genes without complete genetic replacement

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The wheat variety 6PMZM22B introduces specific local improvements at targeted genetic loci for disease resistance and stress tolerance while maintaining the overall genetic background and agronomic characteristics of the parent variety

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12426562B2Wheat variety 6PMZM22B
Publication Date: 2025.09.30 PIONEER HI BREED INTERNATIONAL INC

AI summary

A wheat variety designated 6PMZM22B, the plants and seeds of wheat variety 6PMZM22B, methods for producing a wheat plant produced by crossing the variety 6PMZM22B with another wheat plant, and hybrid wheat seeds and plants produced by crossing the variety 6PMZM22B with another wheat line or plant, and the creation of variants by backcrossing, mutagenesis or transformation of variety 6PMZM22B are disclosed. Methods for producing other wheat varieties or breeding lines derived from wheat variety 6PMZM22B and to wheat varieties or breeding lines produced by those methods are also provided.