Soybean XB12B11 Breeding via Marker-Assisted Selection
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Solution Overview
Problem
The development of stable, high-yielding soybean varieties that are resistant to diseases and abiotic stresses is a time-consuming process, requiring precise planning and efficient resource use, with existing soybean breeding methods struggling to combine desirable traits such as disease resistance, drought tolerance, and improved fatty acid profiles effectively.
Innovation Solution
The soybean variety XB12B11 is developed through careful breeding and selection, combining traits like resistance to aerial web blight, aphid antibiosis, and improved fatty acid profiles, with methods for introgressing transgenic or mutant traits to enhance its characteristics, and using genetic marker profiles for identification and breeding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional soybean breeding methods are used to combine desirable traits, then disease resistance and drought tolerance can be achieved, but the breeding process becomes extremely time-consuming and resource-intensive
Solution Approach 1:
The patent employs marker-assisted selection where DNA markers are used to track and select for desirable traits (disease resistance, drought tolerance) across generations. This feedback mechanism allows breeders to identify plants with desired genetic characteristics early in the breeding process, significantly reducing the time required compared to traditional phenotypic selection methods.
Solution Approach 2:
The patent replaces traditional mechanical/phenotypic breeding methods with molecular biology techniques. Instead of relying on visual observation and manual selection of plant traits, the invention uses DNA marker analysis and molecular breeding approaches to identify and combine desirable genetic traits, thereby accelerating the breeding process while maintaining reliability.
2Productivity
If multiple desirable traits are combined in a single variety, then agronomic performance is improved, but the complexity of the breeding program increases
Solution Approach 1:
The patent divides the breeding program into distinct segments or modules, each targeting specific traits (disease resistance, drought tolerance, yield components). By using independent marker-assisted selection pathways for each trait segment, the program can systematically combine multiple desirable traits without overwhelming complexity, as each trait can be tracked and selected for separately through standardized molecular markers.
Solution Approach 2:
The patent develops a universal marker-assisted selection platform that can be applied across multiple breeding objectives and trait combinations. This multi-functional approach allows the same molecular breeding infrastructure and marker systems to be used for combining various desirable traits (disease resistance, abiotic stress tolerance, yield improvement), thereby managing complexity through standardization rather than requiring separate programs for each trait combination.
3Ease of manufacture
If conventional breeding methods are used, then variety development can proceed, but resource efficiency is poor and changes in breeding direction are difficult to implement
Solution Approach 1:
The patent performs preliminary genetic analysis and marker identification before initiating full-scale breeding programs. By pre-characterizing parental lines for desirable traits using DNA markers and establishing marker-trait associations in advance, the breeding program can efficiently proceed with targeted selection, avoiding wasted resources on plants that lack desired genetic characteristics. This preliminary molecular screening prevents unnecessary investment in developing lines that would not achieve breeding goals.
Data Source
AI summary
A novel soybean variety, designated XB12B11 is provided. Also provided are the seeds of soybean variety XB12B11, cells from soybean variety XB12B11, plants of soybean XB12B11, and plant parts of soybean variety XB12B11. Methods provided include producing a soybean plant by crossing soybean variety XB12B11 with another soybean plant, methods for introgressing a transgenic trait, a mutant trait, and/or a native trait into soybean variety XB12B11, methods for producing other soybean varieties or plant parts derived from soybean variety XB12B11, and methods of characterizing soybean variety XB12B11. Soybean seed, cells, plants, germplasm, breeding lines, varieties, and plant parts produced by these methods and/or derived from soybean variety XB12B11 are further provided.