Inbred Maize PHEMP Segmentation for Disease Resistance

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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 yield improvement.

Innovation Solution

Development of a novel inbred maize variety, PHEMP, which can be used to create hybrid maize plants with improved traits through crossing and introgression processes, allowing for the introduction of specific genetic material to enhance resistance to diseases and environmental stresses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional plant breeding methods are used to combine desirable traits, then disease resistance and drought tolerance can be improved, but the time required to develop new varieties and the complexity of the breeding process increase significantly

Engineering Contradiction:
Improvedisease resistanceVSAvoidtime to develop new varieties
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent segments the breeding process by creating a specialized inbred variety (PHEMP) with specific desirable traits already fixed, which can then be used as a standardized component in multiple hybrid combinations. This segmentation allows disease resistance and other traits to be developed once in the inbred line and then propagated across many hybrids, significantly reducing the time required for variety development while maintaining reliable disease resistance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies preliminary action by developing the PHEMP inbred variety in advance with predetermined desirable traits including disease resistance, uniformity, and adaptability. This pre-developed inbred line serves as a ready-to-use genetic foundation that can be immediately crossed with other lines to produce hybrids, eliminating the need to develop these traits separately for each new variety and thus reducing development time while ensuring consistent trait expression.

Inventive Principle:
Principle #10Preliminary action

2Stability of the object's composition

If traditional breeding methods are used to achieve uniformity in plant characteristics, then germination uniformity and stand establishment can be improved, but the manufacturing precision and breeding complexity increase

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

Solution Approach 1:

The patent achieves homogeneity by developing PHEMP as a highly inbred variety with fixed and uniform genetic composition. This inbred line exhibits consistent germination, stand establishment, growth rate, and other characteristics across all plants. By using this homogeneous inbred variety as a parent in hybrid production, the desired uniformity is transferred to the hybrid offspring, reducing breeding complexity while maintaining stable plant characteristics.

Inventive Principle:
Principle #33Homogeneity

3Productivity

If inbred variety PHEMP is used to produce hybrid maize, then yield and adaptability are improved, but the requirement for controlled crossing and hybrid seed production increases process complexity

Engineering Contradiction:
ImproveyieldVSAvoidhybrid seed production complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing PHEMP as a general-purpose inbred variety that can be crossed with multiple different maize lines to produce various hybrid combinations. This single inbred variety serves multiple functions: it provides yield enhancement, adaptability, and consistent performance across different crossing partners. This multi-functionality reduces the need to develop separate specialized inbreds for different hybrid programs, thereby simplifying overall hybrid seed production while maintaining high yield and adaptability.

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

Data Source

PatentUS7563962B1Inbred maize variety PHEMP
Publication Date: 2009.07.21 PIONEER HI BREED INTERNATIONAL INC
  • US7563962B1 patent drawing

AI summary

A novel inbred maize variety designated PHEMP and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing inbred maize variety PHEMP with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PHEMP 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 inbred variety PHEMP or a trait conversion of PHEMP with another maize variety. Inbred maize varieties derived from inbred maize variety PHEMP, methods for producing other inbred maize varieties derived from inbred maize variety PHEMP and the inbred maize varieties and their parts derived by the use of those methods.