Soybean XB28N08 Multi-Trait Breeding via Segmentation and Preliminary Action

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Solution Overview

Problem

Soybean breeders face challenges in developing stable, high-yielding varieties that are resistant to diseases and abiotic stresses, with existing breeding processes being time-consuming and resource-intensive, and current soybean varieties often lack desirable traits such as multi-race Phytophthora resistance and herbicide tolerance.

Innovation Solution

The development of the soybean variety XB28N08, which exhibits resistance to Roundup branded herbicides, multi-race Phytophthora resistance, excellent harvest standability, and shattering resistance, achieved through careful breeding and selection, allowing for improved agronomic qualities and adaptability to various environments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional breeding processes are used to develop new soybean varieties, then genetic diversity and trait combination are improved, but the development time and resource consumption increase significantly

Engineering Contradiction:
Improvetrait combinationVSAvoiddevelopment time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-screening parental lines for specific desirable traits (herbicide tolerance, disease resistance, yield characteristics) before initiating the breeding program. This advance preparation of parental germplasm with known trait profiles accelerates the overall breeding process while maintaining genetic diversity and trait combination goals.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If extensive breeding and selection is performed to achieve multiple desirable traits, then variety stability and productivity are improved, but the complexity and cost of the breeding program increase

Engineering Contradiction:
Improvevariety stabilityVSAvoidbreeding program complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The breeding program is segmented into distinct phases: parental selection, controlled crossing, progeny evaluation, and variety registration. Each phase focuses on specific objectives (e.g., XB28N08's herbicide tolerance in one phase, yield stability in another), reducing overall program complexity while achieving multi-trait variety stability through systematic, modular breeding steps.

Inventive Principle:
Principle #1Segmentation

3Productivity

If selection for high yield potential is prioritized, then grain production is improved, but resistance to diseases and abiotic stresses may be compromised

Engineering Contradiction:
Improvegrain productionVSAvoiddisease resistance
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent merges multiple trait selection criteria into a single integrated breeding program for XB28N08. Desirable traits including herbicide tolerance, Phytophthora resistance, and high yield potential are combined in one variety through controlled crossing and selection, achieving both high grain production and reliable disease resistance simultaneously rather than prioritizing one over the other.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS7605307B1Soybean variety XB28N08
Publication Date: 2009.10.20 PIONEER HI BREED INTERNATIONAL INC

AI summary

According to the invention, there is provided a novel soybean variety designated XB28N08. This invention thus relates to the seeds of soybean variety XB28N08, to the plants of soybean XB28N08 to plant parts of soybean variety XB28N08 and to methods for producing a soybean plant produced by crossing plants of the soybean variety XB28N08 with another soybean plant, using XB28N08 as either the male or the female parent.