Soybean Variety 4785923 Breeding via Marker-Assisted Selection
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Solution Overview
Problem
The development of new soybean varieties is a time-consuming and unpredictable process due to the complexity of combining desirable traits like disease resistance, yield, and environmental adaptability, making it challenging for breeders to consistently produce superior varieties using conventional breeding methods.
Innovation Solution
The soybean variety 4785923 is developed through specific breeding methods, including crossing and selection techniques, which allows for the introduction of desirable traits such as herbicide resistance, disease resistance, and improved nutritional quality, and can be used to produce hybrid seeds and inbred plants with consistent physiological and morphological characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional breeding methods are used to combine desirable traits, then disease resistance and yield improvement can be achieved, but the breeding process becomes extremely time-consuming and unpredictable
Solution Approach 1:
The patent applies preliminary action by pre-screening parental lines for specific desirable traits (disease resistance, yield components, adaptability) before crossing. This advance selection and preparation of parental germplasm with known superior characteristics allows the breeding program to start with optimized parents, reducing the time needed for subsequent selection and evaluation steps while ensuring reliable trait inheritance.
2Productivity
If multiple desirable traits are combined in a single variety, then agronomic quality and productivity improve, but the complexity of the breeding program increases
Solution Approach 1:
The patent applies segmentation by dividing the breeding program into distinct phases: parental line selection, crossing, F1 evaluation, and advanced generation testing. Each phase focuses on specific traits (e.g., parental selection for disease resistance, F1 evaluation for yield potential). This segmented approach allows systematic improvement of multiple traits without overwhelming complexity, as each segment handles a subset of the total breeding objectives.
Solution Approach 2:
The patent applies local quality by selecting parental lines that excel in specific local conditions or for specific traits. Different parents are chosen for different strengths (one for disease resistance, another for yield), and their combinations are evaluated for complementary trait expression. This allows the final variety to inherit superior local adaptations and trait-specific excellence from each parent without requiring all parents to be perfect in all aspects.
3Stability of the object's composition
If repeated selfing and selection are performed to develop pureline varieties, then genetic uniformity improves, but the number of generations required increases the time to market
Solution Approach 1:
The patent applies mechanics substitution by replacing the traditional mechanical approach of repeated manual selfing and phenotypic selection with molecular marker-assisted selection. DNA-based markers allow identification and selection of desired genetic combinations at the molecular level, enabling breeders to track inheritance of multiple traits simultaneously across generations. This substitution accelerates the achievement of genetic uniformity by allowing selection based on genotype rather than requiring multiple generations of phenotypic expression and re-selection.
Data Source
AI summary
The invention relates to the soybean variety designated 4785923. Provided by the invention are the seeds, plants and derivatives of the soybean variety 4785923. Also provided by the invention are tissue cultures of the soybean variety 4785923 and the plants regenerated therefrom. Still further provided by the invention are methods for producing soybean plants by crossing the soybean variety 4785923 with itself or another soybean variety and plants produced by such methods.