Soybean XB21Y13 Breeding via 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 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, XB21Y13, 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 process involving backcrossing and genetic marker-assisted breeding to introduce desired traits and achieve phenotypic stability.
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 (MAS) which provides feedback on the genetic composition of breeding lines at the DNA level. This allows breeders to track the inheritance of desirable traits (such as disease resistance genes and fatty acid profile markers) through generations, making informed selection decisions early in the breeding process rather than waiting for phenotypic expression, thereby significantly reducing the time required to develop stable varieties with multiple desired traits.
2Quantity of substance
If multiple desirable traits are combined into a single soybean variety, then the nutritional value and yield are improved, but the complexity of the breeding program increases
Solution Approach 1:
The patent divides the complex breeding objective into manageable segments by identifying and tracking specific molecular markers associated with individual traits (e.g., separate markers for disease resistance, fatty acid composition, and yield). This segmentation allows the breeding program to address each trait independently through marker-assisted selection while systematically combining them in the same genetic background, reducing overall program complexity compared to traditional phenotypic selection methods.
3Stability of the object's composition
If phenotypic stability is achieved through extensive breeding, then the variety shows uniformity in desirable traits, but the process requires numerous generations of selection
Solution Approach 1:
The patent applies preliminary action by using molecular markers to identify and select individuals carrying desired genetic traits early in the breeding process, before phenotypic expression occurs. This allows selection to begin at the seedling stage or even earlier, rather than waiting for mature plant phenotypes to be evaluated. By performing selection actions preliminarily based on genetic markers, the patent accelerates the achievement of phenotypic stability and reduces the number of generations required to develop uniform varieties.
Data Source
AI summary
A novel soybean variety, designated XB21Y13 is provided. Also provided are the seeds of soybean variety XB21Y13, cells from soybean variety XB21Y13, plants of soybean XB21Y13, and plant parts of soybean variety XB21Y13. Methods provided include producing a soybean plant by crossing soybean variety XB21Y13 with another soybean plant, methods for introgressing a transgenic trait, a mutant trait, and/or a native trait into soybean variety XB21Y13, methods for producing other soybean varieties or plant parts derived from soybean variety XB21Y13, and methods of characterizing soybean variety XB21Y13. Soybean seed, cells, plants, germplasm, breeding lines, varieties, and plant parts produced by these methods and/or derived from soybean variety XB21Y13 are further provided.