Soybean XB31R13 Marker-Assisted Breeding for Trait Combination
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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 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
The development of a novel soybean variety, XB31R13, 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
1Adaptability or versatility
If traditional soybean breeding methods are used to combine multiple desirable traits, then trait combination is achieved, but the breeding process becomes time-consuming and resource-intensive
Solution Approach 1:
The patent employs molecular marker-assisted selection where DNA markers are used to track and select for multiple desirable traits simultaneously during the breeding process. This feedback mechanism allows breeders to identify plants carrying desired traits at the molecular level rather than waiting for phenotypic expression, significantly reducing the time required to develop varieties with multiple combined traits while maintaining precision in trait selection
Solution Approach 2:
The patent utilizes pre-existing molecular markers that have been developed and characterized beforehand to predict and select for multiple traits including disease resistance, yield components, and quality characteristics. By having these markers ready in advance, the breeding process can immediately screen and select for trait combinations without time-consuming phenotypic testing at each generation, thus reducing overall breeding duration while achieving comprehensive trait combination
2Productivity
If extensive breeding programs are implemented to develop stable, high-yielding varieties, then variety improvement is achieved, but resource consumption increases
Solution Approach 1:
The patent replaces traditional mechanical and phenotypic selection methods with molecular marker-based genetic analysis. Instead of manually evaluating numerous plants over multiple growing seasons for traits like disease resistance and yield, the system uses DNA markers to identify and select plants with desired genetic profiles in the laboratory, dramatically reducing the time, land, and labor resources required while maintaining or improving the quality of variety development
Solution Approach 2:
The patent shifts the selection parameter from phenotypic characteristics (which require field testing over multiple seasons) to genotypic characteristics detectable through molecular markers. This parameter change allows for early-generation selection, reducing the number of plants and growing seasons needed, thereby conserving resources while achieving the same or better variety improvement outcomes
3Adaptability or versatility
If multiple traits are combined in a single variety through conventional breeding, then trait diversity is achieved, but breeding complexity increases
Solution Approach 1:
The patent divides the complex task of selecting for multiple traits into separate, manageable components by using specific molecular markers for each trait of interest (e.g., separate markers for disease resistance, yield, and quality traits). This segmentation allows breeders to independently track and select for each trait through simple DNA tests rather than managing complex phenotypic evaluations, reducing breeding program complexity while achieving diverse trait combinations
Data Source
AI summary
A novel soybean variety, designated XB31R13 is provided. Also provided are the seeds of soybean variety XB31R13, cells from soybean variety XB31R13, plants of soybean XB31R13, and plant parts of soybean variety XB31R13. Methods provided include producing a soybean plant by crossing soybean variety XB31R13 with another soybean plant, methods for introgressing a transgenic trait, a mutant trait, and/or a native trait into soybean variety XB31R13, methods for producing other soybean varieties or plant parts derived from soybean variety XB31R13, and methods of characterizing soybean variety XB31R13. Soybean seed, cells, plants, germplasm, breeding lines, varieties, and plant parts produced by these methods and/or derived from soybean variety XB31R13 are further provided.