Soybean Variety 97R21 Marker-Assisted Breeding for Trait Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current soybean breeding processes are time-consuming and resource-intensive, aiming to develop stable, high-yielding varieties with desirable traits such as disease resistance, drought tolerance, and improved fatty acid profiles, while existing methods face challenges in efficiently combining these traits in a single variety.
Innovation Solution
Development of the soybean variety 97R21, which is the result of careful breeding and selection, combining traits like resistance to aerial web blight, aphid antibiosis, and improved fatty acid profiles, through a comprehensive breeding program that includes backcrossing and genetic marker-assisted breeding to introduce desired traits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional soybean breeding methods are used to combine multiple desirable traits, then the variety achieves disease resistance and improved fatty acid profiles, but the breeding process becomes time-consuming and resource-intensive
Solution Approach 1:
The patent employs molecular marker-assisted selection that provides feedback on the presence of desired traits at the DNA level, allowing breeders to track inheritance of disease resistance genes and fatty acid profile characteristics through generations without waiting for phenotypic expression, thereby accelerating the breeding process while maintaining trait reliability
Solution Approach 2:
The patent replaces traditional mechanical/phenotypic selection methods with molecular marker-based detection systems. Instead of visually assessing disease resistance or fatty acid composition in the field, the invention uses DNA markers to identify and select plants carrying desired traits, substituting biochemical analysis for conventional breeding evaluation
2Adaptability or versatility
If multiple traits are combined in a single variety through comprehensive breeding, then the variety achieves superior agronomic characteristics, but the breeding program complexity increases
Solution Approach 1:
The patent segments the breeding program into distinct molecular marker-assisted selection steps for different trait categories (disease resistance, fatty acid profile, agronomic characteristics). Each trait group is tracked using specific molecular markers, allowing complex multi-trait combination to be managed through systematic, modular selection procedures rather than unmanageable whole-program complexity
Solution Approach 2:
The patent develops a universal molecular marker-assisted selection platform that can simultaneously track multiple different traits using the same basic methodology and infrastructure. The system uses PCR-based marker detection that can identify various disease resistance genes, fatty acid profile markers, and agronomic trait markers through a unified process, reducing the need for separate breeding programs for each trait
Data Source
AI summary
A novel soybean variety, designated 97R21 is provided. Also provided are the seeds of soybean variety 97R21, cells from soybean variety 97R21, plants of soybean 97R21, and plant parts of soybean variety 97R21. Methods provided include producing a soybean plant by crossing soybean variety 97R21 with another soybean plant, methods for introgressing a transgenic trait, a mutant trait, and/or a native trait into soybean variety 97R21, methods for producing other soybean varieties or plant parts derived from soybean variety 97R21, and methods of characterizing soybean variety 97R21. Soybean seed, cells, plants, germplasm, breeding lines, varieties, and plant parts produced by these methods and/or derived from soybean variety 97R21 are further provided.