Hybrid Maize X09T080 for Stable Multi-Trait Crop Performance

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Solution Overview

Problem

Existing hybrid maize development methods struggle to combine desirable traits such as disease resistance, heat and drought tolerance, and improved yield while maintaining uniformity and stability in commercial crops, especially under varying environmental conditions.

Innovation Solution

The development of a novel maize hybrid variety X09T080, produced by crossing specific inbred varieties and incorporating genetic loci for traits like male sterility, disease resistance, and altered metabolism through backcrossing and transformation, along with cytoplasmic inheritance of traits like CMS, to enhance genetic diversity and stability.

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 program increases, but the uniformity and stability of the hybrid may be compromised

Engineering Contradiction:
Improvecombination of desirable traitsVSAvoiduniformity and stability of hybrid
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The breeding program is divided into distinct phases: developing inbred lines with specific traits, testing them in controlled crosses, and progressively combining traits through multiple generations of backcrossing and selection. This segmentation allows complex trait combinations to be achieved while maintaining control over uniformity at each stage.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Inbred lines are developed and characterized in advance before being used in hybrid combinations. This preliminary development ensures that each parent line has stable, uniform genetics for the desired traits, which then translates to uniformity in the resulting hybrids when properly crossed.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If multiple traits are combined in a single hybrid through traditional breeding, then the breeding time and resources increase, but the productivity of the development program may decrease

Engineering Contradiction:
Improvenumber of traits combinedVSAvoidbreeding program efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

Multiple inbred lines, each developed with specific desirable traits, are merged through controlled crossing to create a single hybrid that expresses all desired traits simultaneously. This combining approach allows efficient accumulation of traits across multiple parent lines without requiring sequential breeding of each trait separately.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The inbred line development system creates universal parental lines that can be used across multiple hybrid combinations. A single inbred line with stabilized traits can serve as a parent in different cross combinations, allowing the same genetic improvements to be deployed across multiple hybrid varieties, thereby increasing overall program productivity.

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

3Stability of the object's composition

If inbred lines are developed through multiple generations of selfing to ensure uniformity, then the time required for line development increases, but the reliability of the hybrid performance decreases without sufficient inbreeding

Engineering Contradiction:
Improvegenetic uniformity of inbred linesVSAvoidhybrid performance consistency
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

Inbred lines are developed through multiple generations of selfing in advance of hybrid production to ensure complete genetic uniformity and stability. This preliminary inbreeding establishes homozygous lines with consistent trait expression, which then reliably produce uniform hybrid performance when crossed, eliminating variability from parental genetic heterogeneity.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12478015B1Maize hybrid X09T080
Publication Date: 2025.11.25 PIONEER HI BREED INTERNATIONAL INC
  • US12478015B1 patent drawing

AI summary

A novel maize variety designated X09T080 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 X09T080 with another maize plant are disclosed. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X09T080 through backcrossing or genetic transformation, and to the maize seed, plant and plant part produced thereby are described. Maize variety X09T080, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X09T080 are provided. Methods for producing maize varieties derived from maize variety X09T080 and methods of using maize variety X09T080 are disclosed.