Soybean XB81H09 Breeding Using 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 XB81H09, which is a result of careful breeding and selection, combining traits such as glyphosate resistance, high yield potential, and tolerance to various diseases and abiotic stresses, utilizing advanced breeding techniques and genetic marker profiles for precise trait introduction and stabilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional soybean breeding processes are used to combine multiple desirable traits, then the variety achieves stability and high yield potential, but the breeding process becomes time-consuming and resource-intensive

Engineering Contradiction:
Improvevariety stabilityVSAvoidbreeding process time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by using molecular marker technology to pre-identify and select parent plants carrying specific desirable traits (disease resistance, yield potential, stress tolerance) before crossing. This allows breeders to predict offspring characteristics in advance, significantly reducing the time required for trait combination and variety stabilization while maintaining reliability.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If multiple desirable traits are combined in a single variety, then the agronomic performance is improved, but the breeding complexity increases

Engineering Contradiction:
Improveagronomic performanceVSAvoidbreeding process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by breaking down the complex breeding process into distinct, manageable stages: (1) identifying parent plants with specific traits using molecular markers, (2) performing targeted crosses between selected parents, (3) screening offspring for desired trait combinations, and (4) stabilizing the variety. This systematic segmentation reduces breeding complexity while achieving superior agronomic performance through controlled trait combination.

Inventive Principle:
Principle #1Segmentation

3Manufacturing precision

If molecular marker-assisted breeding is used for precise trait introduction, then the manufacturing precision of trait combination is improved, but the ease of manufacture decreases

Engineering Contradiction:
Improvetrait combination precisionVSAvoidbreeding operation ease
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent uses molecular markers as intermediaries to bridge the gap between simple breeding operations and precise trait combination. The markers serve as detectable indicators that allow breeders to screen and select offspring with desired traits without complex genetic analysis, thereby maintaining ease of manufacture while achieving high manufacturing precision in trait combination.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS7910810B1Soybean variety XB81H09
Publication Date: 2011.03.22 PIONEER HI BREED INTERNATIONAL INC

AI summary

According to the invention, there is provided a novel soybean variety designated XB81H09. This invention thus relates to the seeds of soybean variety XB81H09, to the plants of soybean XB81H09 to plant parts of soybean variety XB81H09 and to methods for producing a soybean plant produced by crossing plants of the soybean variety XB81H09 with another soybean plant, using XB81H09 as either the male or the female parent.