Maize Variety PH48YG Breeding Acceleration

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Solution Overview

Problem

The development of new maize varieties and hybrids is a time-consuming process, taking six to twelve years from the first cross to delivering finished seed to farmers, and existing technologies face challenges in combining desirable traits such as disease resistance, drought tolerance, and high yield in a stable and agronomically sound manner.

Innovation Solution

A novel maize variety, PH48YG, is developed through careful breeding and selection, incorporating traits like male sterility, disease resistance, and drought tolerance via backcross conversion and genetic transformation, allowing for the creation of hybrid seeds with enhanced agronomic characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional breeding methods are used to combine desirable traits, then stable and agronomically sound varieties are achieved, but the development process takes six to twelve years

Engineering Contradiction:
Improvestability of varietyVSAvoidbreeding development time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by using male sterility systems to pre-establish controlled pollination conditions before the actual breeding cross. This allows breeders to ensure precise parental contribution and trait combination from the outset, reducing the need for repeated selection cycles and accelerating the breeding process while maintaining variety stability.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If multiple desirable traits are combined in a single variety, then agronomic performance is improved, but the breeding process becomes more complex

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

Solution Approach 1:

The patent applies segmentation by dividing the breeding process into distinct stages using male sterility systems. Different trait combinations can be developed in separate parental lines, then systematically combined through controlled crosses. This modular approach simplifies the management of complex multi-trait breeding programs by breaking them into manageable segments that can be developed and evaluated independently before final combination.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS10757894B1Maize inbred PH48YG
Publication Date: 2020.09.01 PIONEER HI BREED INTERNATIONAL INC

AI summary

A novel maize variety designated PH48YG and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH48YG with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH48YG 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 PH48YG or a locus conversion of PH48YG with another maize variety.