Soybean D4120384 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, with conventional breeding methods lacking control over genetic combinations and requiring extensive resources.
Innovation Solution
The soybean variety D4120384 is developed through specific breeding methods, including backcrossing and genetic transformation, to introduce desired traits such as herbicide resistance, disease resistance, and improved nutritional quality, while maintaining the elite genetic background for further variety development.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional breeding methods are used to combine desirable traits, then genetic diversity and adaptability are improved, but the breeding process becomes time-consuming and unpredictable
Solution Approach 1:
The patent applies preliminary action by pre-selecting parental lines with known desirable traits and using molecular markers to identify and track specific genes of interest throughout the breeding process. This allows breeders to plan and execute crosses more efficiently, reducing the time required to develop new varieties while maintaining genetic diversity.
Solution Approach 2:
The patent implements feedback through molecular marker-assisted selection, where DNA markers are used to continuously monitor and verify the presence of desired traits in breeding populations. This feedback mechanism allows for precise selection decisions, accelerating the breeding process while ensuring the incorporation of diverse genetic traits.
2Measurement precision
If extensive phenotypic evaluation and replicated observations are conducted to identify superior plants, then selection accuracy is improved, but resource expenditure and time requirements increase
Solution Approach 1:
The patent replaces mechanical/phenotypic evaluation systems with molecular marker-based genetic analysis. Instead of conducting extensive field observations and replicated phenotypic measurements, the invention uses DNA markers to directly assess genetic merit, dramatically reducing resource requirements while maintaining or improving selection accuracy.
Solution Approach 2:
The patent uses molecular markers as copies or proxies for complex phenotypic traits. Rather than measuring the actual expression of complex traits through extensive observation, the invention analyzes DNA marker patterns that correlate with desired traits, providing a more efficient and resource-saving method for accurate selection.
3Manufacturing precision
If multiple breeding cycles and generations are advanced through repeated selfing and selection, then trait combination precision is improved, but the breeding program duration and complexity increase
Solution Approach 1:
The patent uses molecular marker feedback to monitor trait combination progress in real-time, allowing breeders to make informed decisions about which lines to advance or discard. This feedback system increases precision in achieving desired trait combinations while simplifying program management by providing clear genetic information.
Solution Approach 2:
The patent applies preliminary action by pre-characterizing parental lines with molecular markers and planning crossing strategies based on marker data. This preliminary genetic analysis allows for more precise trait combination outcomes with fewer breeding cycles, reducing overall program complexity.
Data Source
AI summary
The invention relates to the soybean variety designated D4120384. Provided by the invention are the seeds, plants and derivatives of the soybean variety D4120384. Also provided by the invention are tissue cultures of the soybean variety D4120384 and the plants regenerated therefrom. Still further provided by the invention are methods for producing soybean plants by crossing the soybean variety D4120384 with itself or another soybean variety and plants produced by such methods.