1PGZW72 Maize Inbred for Disease, Drought, and Yield Traits

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Solution Overview

Problem

The development of new maize varieties is a time-consuming process that requires years to combine desirable traits such as disease resistance, drought tolerance, and high yield, posing challenges in efficiently producing stable and agronomically sound maize varieties.

Innovation Solution

The development of a novel maize variety, 1PGZW72, which incorporates genetic modifications and cytoplasmic traits for male sterility, along with processes for crossing and introgression of desired traits, allowing for the creation of hybrid maize seeds with improved characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional maize breeding methods are used to combine desirable traits, then disease resistance, drought tolerance, and yield can be improved, but the development process takes 6-12 years which is excessively time-consuming

Engineering Contradiction:
Improvetrait stabilityVSAvoidbreeding cycle duration
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-establishing inbred lines with specific desirable traits (disease resistance, drought tolerance, yield potential) before the actual hybridization process. The inbred lines are developed and characterized in advance, allowing the hybridization step to focus on combining these pre-validated traits rather than discovering them during the breeding process, thus reducing the overall time while maintaining trait stability

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The breeding process is segmented into distinct phases: developing individual inbred lines with specific traits, validating their characteristics, and then combining them through controlled hybridization. This segmentation allows parallel development of multiple inbred lines with different traits, reducing the sequential time required while ensuring each trait is properly established before combination

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If multiple desirable traits are combined in a single maize variety, then agronomic performance and yield are improved, but the complexity of the breeding program increases

Engineering Contradiction:
Improveagronomic performanceVSAvoidbreeding program complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent creates inbred lines that serve multiple functions: they are both the foundation for hybrid development and the source of specific desirable traits (disease resistance, drought tolerance, yield). Each inbred line is developed to be universally applicable as a parent in hybrid combinations, reducing the need for separate specialized breeding programs for each trait combination

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

Solution Approach 2:

Different inbred lines are developed with specialized local qualities - some excel in disease resistance, others in drought tolerance, others in yield potential. This allows the breeding program to combine lines with complementary local qualities rather than attempting to develop all traits simultaneously in a single line, simplifying the overall program complexity while achieving comprehensive agronomic performance

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12446531B1Maize inbred 1PGZW72
Publication Date: 2025.10.21 PIONEER HI BREED INTERNATIONAL INC
  • US12446531B1 patent drawing

AI summary

A novel maize variety designated 1PGZW72 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety 1PGZW72 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 1PGZW72 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby are provided. Hybrid maize seed, plants or plant parts are produced by crossing the variety 1PGZW72 or a locus conversion of 1PGZW72 with another maize variety.