Petunia-Calibrachoa Breeding Line for Accurate Trait Selection

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Solution Overview

Problem

Existing petunia-calibrachoa breeding methods face challenges in identifying genetically superior plants due to masking by confounding traits and environmental factors, and there is a need for efficient methods to develop new varieties with desired traits.

Innovation Solution

The development of petunia-calibrachoa variety SAKPXC036, which is uniform and stable, and can be used in breeding programs, combined with techniques like pedigree breeding, backcrossing, recurrent selection, mutation breeding, gene editing using CRISPR/Cas9, TALENs, and protoplast fusion to introduce desired traits and resistances.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional breeding methods are used to identify genetically superior plants, then breeding programs can proceed with available techniques, but the identification is masked by confounding traits and environmental factors reducing accuracy

Engineering Contradiction:
Improveidentification accuracyVSAvoidbreeding program complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

Molecular markers serve as intermediary tools that directly detect genetic traits of interest without being influenced by environmental factors or confounding visual traits. These markers act as mediators between the breeder and the plant's genetic makeup, providing accurate identification of superior plants based on their molecular signature rather than phenotypic appearance.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces traditional mechanical/visual selection methods with molecular-based detection systems. Instead of manually evaluating plant traits in the field, breeders use DNA extraction, PCR amplification, and marker analysis in the laboratory to identify genetically superior plants, substituting physical observation with biochemical analysis.

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

2Productivity

If advanced genetic modification tools like CRISPR/Cas9 and TALENs are implemented, then targeted traits and resistances can be introduced efficiently, but the complexity of the breeding program increases

Engineering Contradiction:
Improvevariety development efficiencyVSAvoidbreeding program complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent employs preliminary action by using molecular markers to pre-identify plants carrying desirable genetic traits or resistance genes before implementing genetic modification. This preliminary screening ensures that only plants with the correct genetic background undergo complex procedures like CRISPR/Cas9 or TALEN editing, thereby increasing overall productivity while managing complexity through staged intervention.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The breeding program incorporates feedback loops where molecular marker analysis results from each generation inform subsequent breeding decisions and genetic modification strategies. This continuous feedback allows breeders to track the introduction and inheritance of targeted traits, adjust editing approaches accordingly, and verify successful integration of desired characteristics.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If molecular markers and advanced breeding techniques are used, then genetically superior plants can be identified accurately, but the complexity and cost of the breeding program increases

Engineering Contradiction:
Improvegenetic trait detection accuracyVSAvoidbreeding program complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The breeding program is segmented into distinct stages: initial molecular marker screening to identify plants with desirable genetic potential, followed by controlled breeding operations, and finally verification through additional marker analysis. This segmentation allows accurate genetic detection to be applied selectively at critical decision points rather than continuously, reducing overall program complexity while maintaining high measurement precision where most needed.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20260026454A1Petunia-Calibrachoa Variety SAKPXC036
Publication Date: 2026.01.29 SAKATA SEED CORP

AI summary

A petunia-calibrachoa plant designated SAKPXC036 is disclosed. Embodiments include the seeds of petunia-calibrachoa SAKPXC036, the plants of petunia-calibrachoa SAKPXC036, to plant parts of petunia-calibrachoa SAKPXC036, and methods for producing a plant produced by crossing petunia-calibrachoa SAKPXC036 with itself or with another variety. Embodiments include methods for producing a plant containing in its genetic material one or more genes or transgenes and the transgenic plants and plant parts produced by those methods. Embodiments also relate to varieties, breeding varieties, plant parts, and cells derived from petunia-calibrachoa SAKPXC036, methods for producing other lines or plant parts derived from petunia-calibrachoa SAKPXC036, and the plants, varieties, and their parts derived from use of those methods. Embodiments further include hybrid seeds, plants, and plant parts produced by crossing petunia-calibrachoa SAKPXC036 with another variety.