Maize Hybrid X08P415 Trait Segmentation

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Solution Overview

Problem

Traditional plant breeding methods face challenges in simultaneously achieving desirable traits such as disease resistance, drought tolerance, and uniformity in crop characteristics for field crops like maize, which are essential for mechanical harvesting and high yield.

Innovation Solution

The development of a novel maize hybrid variety X08P415, produced by crossing two inbred maize varieties, incorporating genetic loci for traits like male sterility, herbicide tolerance, and disease resistance through locus conversion, backcrossing, and transformation, ensuring uniform physiological and morphological characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional plant breeding methods are used to combine multiple desirable traits, then the complexity of the breeding process increases, but the ability to simultaneously achieve disease resistance, drought tolerance, and uniformity decreases

Engineering Contradiction:
Improveability to combine multiple desirable traitsVSAvoidcomplexity of breeding process
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the complex breeding process into distinct generations (P1, P2, F1, F2, F3) with specific objectives for each generation. This segmentation allows systematic introduction and stabilization of multiple traits through controlled crossing and selection at each stage, making the overall complex process manageable and repeatable

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent performs preliminary actions by pre-selecting parent lines with specific desired traits before initiating the hybrid development program. The P1 and P2 generations are specifically designed and selected to carry particular disease resistance, drought tolerance, or uniformity traits, allowing these traits to be systematically combined in subsequent generations

Inventive Principle:
Principle #10Preliminary action

2Reliability

If multiple traits are introduced through backcrossing and transformation, then the desired traits are achieved, but the time required for variety development increases

Engineering Contradiction:
Improvetrait stability and uniformityVSAvoidtime for variety development
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent employs periodic action through structured generational cycles (P1→P2→F1→F2→F3) with repeated backcrossing and selection steps. This periodic repetition of crossing, selection, and stabilization processes ensures reliable trait incorporation while systematically reducing the time required through efficient progression through defined generations

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent implements feedback mechanisms through continuous evaluation and selection at each generation. Desired traits are assessed in F1, F2, and F3 generations, and selection decisions are made based on this feedback to retain only plants exhibiting the target traits, ensuring trait stability while accelerating development by eliminating non-conforming lines early

Inventive Principle:
Principle #23Feedback

3Manufacturing precision

If uniformity of plant characteristics is emphasized for mechanical harvesting, then harvestability improves, but the genetic diversity needed for multiple desirable traits decreases

Engineering Contradiction:
Improveuniformity of plant characteristicsVSAvoidgenetic diversity for desirable traits
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The patent applies local quality by maintaining genetic diversity at the trait level while achieving uniformity at the morphological level. Different parent lines contribute specific desirable traits (disease resistance, drought tolerance) that are maintained through selective breeding, while simultaneous selection for uniform plant height, ear position, and maturity ensures mechanical harvestability

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent creates a composite genetic structure by combining multiple parent lines (P1 and P2) with different desirable traits into a single hybrid variety. This composite approach allows the hybrid to exhibit uniformity in critical morphological characteristics for mechanical harvesting while simultaneously expressing multiple desirable traits from the diverse parental genomes

Inventive Principle:
Principle #40Composite materials

Data Source

PatentUS11553664B1Maize hybrid X08P415
Publication Date: 2023.01.17 PIONEER HI BREED INTERNATIONAL INC

AI summary

A novel maize variety designated X08P415 and seed, plants and plant parts thereof are produced by crossing inbred maize varieties. Methods for producing a maize plant by crossing hybrid maize variety X08P415 with another maize plant are disclosed. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X08P415 through backcrossing or genetic transformation, and to the maize seed, plant and plant part produced thereby are described. Maize variety X08P415, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X08P415 are provided. Methods for producing maize varieties derived from maize variety X08P415 and methods of using maize variety X08P415 are disclosed.