Soybean XB14N12 Breeding via Marker-Assisted Selection

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Solution Overview

Problem

Current soybean breeding processes are time-consuming and resource-intensive, aiming to develop stable, high-yielding varieties with desirable traits like disease resistance, drought tolerance, and improved fatty acid profiles, but face challenges in efficiently combining these traits in a single variety.

Innovation Solution

The development of the soybean variety XB14N12, which is the result of careful breeding and selection, combining traits such as resistance to aerial web blight, aphid antibiosis, and improved fatty acid profiles, through a process involving backcrossing and genetic marker-assisted breeding to ensure homozygosity and phenotypic stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional soybean breeding processes are used to develop new varieties with multiple desirable traits, then the variety can achieve comprehensive trait improvement, but the process becomes time-consuming and resource-intensive

Engineering Contradiction:
Improvecomprehensive trait improvementVSAvoidbreeding cycle duration
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-establishing a set of genetic markers associated with desirable traits (disease resistance, drought tolerance, improved fatty acid profiles) before the actual breeding process. This allows breeders to identify and select plants with desired traits more efficiently, reducing the overall breeding cycle time while maintaining comprehensive trait improvement.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent replaces traditional mechanical breeding methods (relying solely on phenotypic selection and manual crossing) with a molecular biology-based approach using genetic markers. This substitution enables more precise and rapid selection of plants with desired traits, significantly reducing the time and resources required for breeding while achieving the same comprehensive trait improvement.

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

2Adaptability or versatility

If traditional soybean breeding processes are used to develop new varieties with multiple desirable traits, then the variety can achieve comprehensive trait improvement, but the process becomes resource-intensive

Engineering Contradiction:
Improvecomprehensive trait improvementVSAvoidbreeding resources required
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent replaces resource-intensive traditional breeding methods with a molecular biology-based approach. By using genetic markers to identify plants with desirable traits, the process reduces the need for large-scale field testing, manual crossing operations, and extensive phenotypic evaluation, thereby reducing the quantity of resources required while maintaining comprehensive trait improvement.

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

Solution Approach 2:

The patent uses genetic markers as molecular copies or proxies for the actual desirable traits. Instead of directly observing and selecting for each trait individually (which requires extensive resources), the markers serve as indicators that can be detected more efficiently, reducing the resources needed for breeding while achieving the same comprehensive trait improvement.

Inventive Principle:
Principle #26Copying

3Adaptability or versatility

If soybean breeding aims to combine multiple desirable traits in a single variety, then the variety achieves superior performance, but the breeding process becomes complex

Engineering Contradiction:
Improvetrait combinationVSAvoidbreeding process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the complex breeding process into manageable components: identifying individual genetic markers for each desirable trait, selecting plants based on marker presence, and combining these selections in a systematic manner. This segmentation simplifies the overall process of combining multiple traits by breaking it down into discrete, controllable steps.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent replaces complex mechanical breeding operations with a molecular biology-based system using genetic markers. This substitution simplifies the process of combining multiple traits by using molecular detection and selection methods that are more straightforward and controllable than traditional phenotypic selection and manual crossing operations.

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

Data Source

PatentUS8563821B2Soybean variety XB14N12
Publication Date: 2013.10.22 PIONEER HI BREED INTERNATIONAL INC

AI summary

A novel soybean variety, designated XB14N12 is provided. Also provided are the seeds of soybean variety XB14N12, cells from soybean variety XB14N12, plants of soybean XB14N12, and plant parts of soybean variety XB14N12. Methods provided include producing a soybean plant by crossing soybean variety XB14N12 with another soybean plant, methods for introgressing a transgenic trait, a mutant trait, and/or a native trait into soybean variety XB14N12, methods for producing other soybean varieties or plant parts derived from soybean variety XB14N12, and methods of characterizing soybean variety XB14N12. Soybean seed, cells, plants, germplasm, breeding lines, varieties, and plant parts produced by these methods and/or derived from soybean variety XB14N12 are further provided.