Maize Inbred PH1C4F Marker-Assisted Breeding

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

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, PH1C4F, which is an inbred line with specific traits introgressed through backcross conversion and transformation, combining resistance to various stresses, diseases, and improved agronomic qualities, along with processes for producing hybrid seeds and plants with enhanced characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional plant breeding methods are used to combine desirable traits, then the breeding process can proceed with conventional techniques, 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 traitsVSAvoidbreeding process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent uses molecular markers as intermediary tools to track and select for multiple desirable traits simultaneously during the breeding process. These markers serve as mediators between the breeder and the genetic traits, enabling precise selection of plants carrying disease resistance, drought tolerance, and uniformity traits without complex phenotypic evaluation for each trait

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If multiple desirable traits are combined in a single variety, then the crop performance and resilience are improved, but the complexity of achieving and maintaining this combination through breeding increases

Engineering Contradiction:
Improvecrop performance and resilienceVSAvoidbreeding process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements feedback mechanisms through molecular marker analysis at multiple stages of the breeding process. By continuously monitoring the presence and combination of desired traits using DNA markers, breeders can make informed decisions about which plants to advance, cross, or discard, creating a feedback loop that ensures reliable combination of multiple traits while managing breeding complexity through data-driven selection

Inventive Principle:
Principle #23Feedback

3Productivity

If uniformity of plant characteristics is improved for mechanical harvesting, then harvest efficiency increases, but the genetic uniformity required may reduce genetic diversity and resilience

Engineering Contradiction:
Improveharvest efficiencyVSAvoidgenetic diversity and resilience
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent applies local quality by achieving uniformity in specific traits important for mechanical harvesting (such as plant height, ear position, and maturity timing) while maintaining genetic diversity in other traits through marker-assisted selection. This allows different regions of the genome to have different levels of homozygosity - high uniformity in harvest-critical traits, preserved diversity in resilience-related traits

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS9258965B1Maize inbred PH1C4F
Publication Date: 2016.02.16 PIONEER HI BREED INTERNATIONAL INC
  • US9258965B1 patent drawing

AI summary

A novel maize variety designated PH1C4F and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH1C4F with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH1C4F 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 PH1C4F or a locus conversion of PH1C4F with another maize variety.