Soybean XB21T12 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 the soybean variety XB21T12, 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 loci, ensuring stability and uniformity.
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 yield, but the breeding process becomes time-consuming and resource-intensive
Solution Approach 1:
The patent applies preliminary action by using genetic marker-assisted selection to identify and select plants with desired traits early in the breeding process, rather than waiting for phenotypic expression. This allows breeders to make informed selection decisions at the seedling stage, significantly reducing the time required to develop new varieties with multiple desirable traits including disease resistance
Solution Approach 2:
The patent implements feedback through the use of molecular markers that provide direct information about the presence of desired genetic traits. This feedback mechanism allows breeders to track the inheritance of multiple traits simultaneously and make precise selection decisions, accelerating the breeding process while maintaining reliability of trait expression
2Productivity
If multiple traits are combined in a single variety through breeding, then the variety achieves superior agronomic performance, but the complexity of the breeding program increases
Solution Approach 1:
The patent applies segmentation by breaking down the complex task of combining multiple traits into manageable segments using molecular markers. Each marker targets specific genetic loci associated with particular traits, allowing breeders to independently track and select for each trait component. This segmented approach simplifies the overall breeding program complexity while achieving superior grain yield through combination of multiple traits
3Stability of the object's composition
If extensive breeding and selection processes are used to stabilize traits, then the variety achieves uniformity and stability, but the resource requirements and time investment increase significantly
Solution Approach 1:
The patent uses molecular marker feedback to directly monitor the genetic composition of breeding populations, enabling precise selection of plants with the desired genetic makeup. This feedback mechanism reduces the need for extensive multi-generation breeding and phenotypic selection, thereby stabilizing traits with fewer resources and less time investment while maintaining high uniformity
Data Source
AI summary
A novel soybean variety, designated XB21T12 is provided. Also provided are the seeds of soybean variety XB21T12, cells from soybean variety XB21T12, plants of soybean XB21T12, and plant parts of soybean variety XB21T12. Methods provided include producing a soybean plant by crossing soybean variety XB21T12 with another soybean plant, methods for introgressing a transgenic trait, a mutant trait, and/or a native trait into soybean variety XB21T12, methods for producing other soybean varieties or plant parts derived from soybean variety XB21T12, and methods of characterizing soybean variety XB21T12. Soybean seed, cells, plants, germplasm, breeding lines, varieties, and plant parts produced by these methods and/or derived from soybean variety XB21T12 are further provided.