Soybean D4923560 Breeding Program for Trait Stability
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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.
Innovation Solution
The soybean variety D4923560 is developed through a specific breeding program that includes crossing and selection methods, such as backcrossing and genetic transformation, to introduce desired traits like herbicide resistance, disease resistance, and improved nutritional quality, while maintaining the elite genetic background for further breeding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional breeding procedures are used to develop new soybean varieties, then genetic diversity and trait combinations are achieved, but the process is unpredictable and time-consuming (8-12 years)
Solution Approach 1:
The patent applies preliminary action by pre-selecting parental lines with desired traits (herbicide resistance, disease resistance, yield characteristics) before crossing. The breeding program establishes clear selection criteria and evaluates parental performance in advance, allowing systematic combination of known desirable traits rather than relying on random genetic recombination. This preliminary preparation reduces the unpredictability and time required for variety development.
2Reliability
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 applies segmentation by dividing the breeding program into distinct phases: selecting parental lines with specific traits, performing controlled crosses, evaluating F1 hybrids for desired trait combinations, and advancing only superior lines to subsequent generations. This segmented approach allows systematic management of multiple traits without overwhelming complexity, as each phase focuses on specific selection criteria.
Solution Approach 2:
The patent applies local quality by evaluating different traits at different stages of the breeding program. Parental selection focuses on specific traits (e.g., herbicide resistance), F1 evaluation emphasizes yield and adaptability, and advanced generation testing concentrates on stability and performance under commercial conditions. This staged, trait-specific evaluation simplifies the overall program complexity while ensuring comprehensive trait combination.
3Measurement precision
If superior individual plants are identified through observation, then genetic superiority can be selected, but true genotypic value is masked by environmental factors and other plant traits
Solution Approach 1:
The patent applies feedback by implementing replicated evaluations of breeding lines across multiple environments and years. Performance data from each generation feeds into selection decisions for the next generation, with lines showing consistent superiority across different conditions being advanced. This feedback mechanism allows breeders to distinguish true genotypic value from environmental effects, as genetically superior lines will consistently outperform others regardless of specific environmental conditions.
Data Source
AI summary
The invention relates to the soybean variety designated D4923560. Provided by the invention are the seeds, plants and derivatives of the soybean variety D4923560. Also provided by the invention are tissue cultures of the soybean variety D4923560 and the plants regenerated therefrom. Still further provided by the invention are methods for producing soybean plants by crossing the soybean variety D4923560 with itself or another soybean variety and plants produced by such methods.