Cotton Variety 15R517 Breeding via Marker-Assisted Selection

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Solution Overview

Problem

Cotton breeding programs face challenges in developing new, superior cotton varieties that combine desirable traits such as higher fiber yield, earlier maturity, disease resistance, and tolerance to drought and heat, due to the unpredictability of genetic combinations and the complexity of inheritance in traditional breeding methods.

Innovation Solution

The development of the cotton variety 15R517, which involves crossing and selection methods, including backcrossing and genetic transformation, to introduce desired traits and produce hybrid seeds and plants with specific morphological and physiological characteristics, while also utilizing tissue culture techniques for regeneration and transformation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional breeding methods are used to generate genetic combinations, then billions of different genetic combinations can be produced, but the unpredictability of genetic combinations and complexity of inheritance makes it difficult to achieve desired traits consistently

Engineering Contradiction:
Improvegenetic combination diversityVSAvoidtrait prediction accuracy
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent employs marker-assisted selection where DNA markers are used to track and select for desired traits during breeding. This feedback mechanism allows breeders to reliably identify plants with target genetic combinations without relying on unpredictable phenotypic expression, thus resolving the contradiction between genetic diversity generation and trait prediction reliability

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent replaces traditional mechanical/physical breeding methods (crossing, selection based on phenotype) with molecular biology methods (DNA marker analysis, genetic transformation). This substitution enables precise control over genetic outcomes while maintaining the ability to generate diverse genetic combinations, thereby improving reliability without sacrificing adaptability

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

2Adaptability or versatility

If multiple breeding steps including crossing and selection are performed to develop new varieties, then superior cotton varieties with multiple desirable traits can be developed, but the breeding process becomes complex and time-consuming

Engineering Contradiction:
Improvetrait combination capabilityVSAvoidbreeding process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent creates parental lines that are pre-characterized with specific desirable traits and verified through marker-assisted selection before crossing. This preliminary preparation ensures that subsequent breeding steps are more efficient and predictable, reducing overall process complexity while maintaining the ability to develop varieties with multiple desirable traits

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent divides the breeding process into distinct modular steps: creating inbred lines with specific traits, characterizing them with DNA markers, performing controlled crosses, and selecting progeny based on marker data. This segmentation makes the complex breeding process more manageable and systematic, reducing overall complexity while preserving trait combination capability

Inventive Principle:
Principle #1Segmentation

3Productivity

If conventional breeding procedures are used, then new cotton varieties can be developed, but the process lacks efficiency in introducing specific desirable traits such as disease resistance and yield improvement

Engineering Contradiction:
Improvebreeding efficiencyVSAvoiddesired trait introduction
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent replaces conventional phenotype-based selection with DNA marker-based selection and genetic transformation methods. This substitution dramatically improves both the efficiency of the breeding process and the reliability of introducing specific desirable traits, as markers provide direct genetic evidence of trait presence without requiring time-consuming phenotypic evaluation

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

Solution Approach 2:

The patent introduces DNA markers as intermediary tools that mediate between the breeder's intent and the actual genetic outcome. These markers serve as reliable indicators that accelerate the breeding process by enabling early selection of plants with desired traits, thereby improving both productivity and reliability simultaneously

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS9867350B2Cotton variety 15R517
Publication Date: 2018.01.16 MONSANTO TECHNOLOGY LLC

AI summary

The invention relates to the novel cotton variety designated 15R517. Provided by the invention are the seeds, plants, plant parts and derivatives of the cotton variety 15R517. Also provided by the invention are methods of using cotton variety 15R517 and products derived therefrom. Still further provided by the invention are methods for producing cotton plants by crossing the cotton variety 15R517 with itself or another cotton variety and plants and seeds produced by such methods.