Maize Inbred PH48Y7 Trait Integration for Breeding Time Reduction

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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, 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

The introduction of the novel maize variety PH48Y7, which involves crossing and genetic manipulation to incorporate traits like male sterility, disease resistance, and improved agronomic characteristics, using backcross conversion and transformation techniques to introduce desired genes, and the use of cytoplasmic or nuclear factors to enhance genetic stability and hybrid production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

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

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

Solution Approach 1:

The patent creates an inbred maize line (PH48Y7) with pre-established desirable traits including disease resistance, drought tolerance, and high yield potential. This preliminary development of a genetically optimized base line allows for faster hybrid development compared to traditional breeding, reducing the time required while maintaining stability through the inbred line's homozygous genetics

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The inbred maize line PH48Y7 serves as an intermediary between traditional breeding and modern hybrid development. It combines the stability of inbred lines with pre-introgressed desirable traits, acting as a reliable parent line that can be crossed with other inbreds to produce hybrids with predictable performance and reduced development time

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If multiple desirable traits are combined in a single variety, then the variety achieves high yield and environmental stress tolerance, but the process becomes increasingly complex

Engineering Contradiction:
Improvetrait combinationVSAvoidbreeding process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple desirable traits including disease resistance, drought tolerance, and high yield potential into a single inbred maize line (PH48Y7). This consolidation of traits in one genetically stable inbred line simplifies subsequent hybrid development, as breeders can cross this pre-combined line with other inbreds to efficiently produce hybrids with multiple desirable characteristics without managing increasingly complex multi-generational breeding programs

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS11439105B1Maize inbred PH48Y7
Publication Date: 2022.09.13 PIONEER HI BREED INTERNATIONAL INC

AI summary

A novel maize variety designated PH48Y7 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH48Y7 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH48Y7 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 PH48Y7 or a locus conversion of PH48Y7 with another maize variety.