Soybean XR35AP14RX Breeding via Marker-Assisted Selection

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Solution Overview

Problem

Current soybean breeding methods face challenges in developing stable, high-yielding varieties with desirable traits such as disease resistance, drought tolerance, and improved nutritional quality, as they rely on conventional breeding techniques that are time-consuming and unpredictable, leading to significant research costs and variability in resulting soybean varieties.

Innovation Solution

The development of the soybean variety XR35AP14RX, which incorporates specific genetic traits through crossing and backcrossing techniques, including the use of transgenic genes for herbicide resistance and disease resistance, and employs molecular marker-assisted selection to enhance breeding efficiency and consistency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional breeding techniques are used to develop soybean varieties, then breeding programs can be established, but the process is time-consuming and unpredictable, resulting in significant research costs and variability in soybean varieties

Engineering Contradiction:
Improvebreeding predictabilityVSAvoidbreeding duration
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by using molecular marker-assisted selection to identify and select plants with desirable traits before completing the full breeding cycle. This allows breeders to make informed decisions early in the process, reducing the time needed for conventional phenotypic selection and increasing breeding predictability through genetic markers that indicate desired characteristics.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent replaces mechanical/phenotypic selection methods with molecular genetic tools. Instead of relying on physical observation and manual selection of traits, the invention uses DNA-based molecular markers to identify and select plants with desired characteristics, thereby reducing breeding time and increasing reliability while maintaining the ability to develop stable, high-yielding varieties.

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

2Manufacturing precision

If conventional breeding techniques are used, then breeding programs can progress, but the resulting soybean varieties show significant variability and require extensive research costs

Engineering Contradiction:
Improvevariety consistencyVSAvoidresearch resources
Core Design Contradiction:
Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The patent substitutes conventional phenotypic evaluation methods with molecular marker analysis. This allows for precise identification of plants with desired genetic traits, ensuring variety consistency while reducing the need for extensive resource-intensive field testing and multiple breeding cycles required by conventional methods.

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

Solution Approach 2:

The patent implements feedback through molecular marker analysis that provides immediate genetic information about plant traits. This feedback mechanism allows breeders to quickly identify and select plants with desired characteristics, reducing the number of breeding cycles needed and thereby decreasing overall research resource requirements while improving variety consistency.

Inventive Principle:
Principle #23Feedback

3Object-affected harmful factors

If transgenic genes are introduced for herbicide resistance and disease resistance, then plant protection is improved, but the complexity of the breeding program increases

Engineering Contradiction:
Improvedisease and herbicide resistanceVSAvoidbreeding program complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by introducing transgenic genes with desired resistance traits early in the breeding program. Molecular markers are used to track the inheritance of these transgenic genes, allowing breeders to select for resistance characteristics before the plants are fully grown, thereby simplifying the overall breeding process despite the added complexity of transgenic technology.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9675026B1Soybean variety XR35AP14RX
Publication Date: 2017.06.13 MONSANTO TECHNOLOGY LLC

AI summary

The invention relates to the soybean variety designated XR35AP14RX. Provided by the invention are the seeds, plants and derivatives of the soybean variety XR35AP14RX. Also provided by the invention are tissue cultures of the soybean variety XR35AP14RX and the plants regenerated therefrom. Still further provided by the invention are methods for producing soybean plants by crossing the soybean variety XR35AP14RX with itself or another soybean variety and plants produced by such methods.