Maize Inbred PH1TRH Breeding via Molecular Markers

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Solution Overview

Problem

Current maize breeding techniques face challenges in combining desirable traits such as disease resistance, drought tolerance, and uniformity, which are essential for efficient crop production and mechanical harvesting.

Innovation Solution

Development of a novel maize variety, PH1TRH, with specific breeding processes and genetic modifications that enhance resistance to various stresses, diseases, and improve agronomic qualities like yield and maturity, achieved through backcross conversion and transformation techniques.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional plant breeding techniques are used to combine desirable traits, then the breeding process can be performed with conventional methods, but the ability to effectively combine multiple desirable traits such as disease resistance, drought tolerance, and uniformity is limited

Engineering Contradiction:
Improveability to combine desirable traitsVSAvoideffectiveness of trait combination
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent employs molecular markers as intermediary tools to mediate the selection process. These markers serve as genetic signposts that indirectly indicate the presence of desirable traits, enabling breeders to select plants with multiple desired traits more effectively than traditional phenotypic selection alone

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If traditional breeding methods are used, then the process is simpler and more conventional, but the uniformity of plant characteristics such as germination, stand establishment, growth rate, maturity, plant height and ear height is insufficient

Engineering Contradiction:
Improveuniformity of plant characteristicsVSAvoidbreeding process complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent replaces traditional mechanical/phenotypic selection methods with molecular marker-based selection. Instead of visually assessing and selecting plants based on physical characteristics, the invention uses DNA marker analysis to identify and select plants with desired genetic compositions, thereby achieving greater uniformity through a more sophisticated selection mechanism

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If more sophisticated breeding techniques are employed to improve trait combination and uniformity, then the effectiveness and uniformity of plant characteristics improve, but the breeding process becomes more complex

Engineering Contradiction:
Improveeffectiveness of trait combinationVSAvoidbreeding process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent performs preliminary action by developing and utilizing molecular marker profiles before the actual breeding selection process. By pre-identifying marker associations with desirable traits and establishing marker-based selection protocols in advance, the complex task of combining multiple traits is simplified during the actual breeding operation

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9204607B1Maize inbred PH1TRH
Publication Date: 2015.12.08 PIONEER HI BREED INTERNATIONAL INC

AI summary

A novel maize variety designated PH1TRH and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH1TRH with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH1TRH through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. Hybrid maize seed, plant or plant part produced by crossing the variety PH1TRH or a locus conversion of PH1TRH with another maize variety.