Soybean Cultivar CL1920086 Transgenic Trait Integration
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Solution Overview
Problem
Soybean breeding is complex due to self-pollination, requiring intervention by breeders to develop new germplasm with desired traits like herbicide resistance, disease resistance, and altered oil profiles, which is unpredictable and time-consuming, involving extensive research and multiple breeding methods.
Innovation Solution
The development of soybean cultivar CL1920086, which includes a single locus conversion with transgenic genes for herbicide resistance, disease resistance, and modified fatty acid metabolism, allowing for the introduction of desired traits through genetic transformation and breeding techniques like backcrossing and marker-assisted selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional breeding methods are used to develop new soybean germplasm, then genetic diversity is maintained through sexual reproduction, but the process is highly unpredictable and requires intensive research and development over multiple generations
Solution Approach 1:
The patent applies preliminary action by pre-introducing desired traits through genetic transformation before breeding operations. Transgenic soybean plants with specific traits (herbicide resistance, disease resistance, modified oil profiles) are created in advance, eliminating the need for time-consuming traditional breeding to introduce these traits. The transgenic events are then incorporated into breeding programs, significantly reducing the time required to develop new germplasm with desired characteristics.
2Adaptability or versatility
If breeders intervene in pollination to develop new soybean varieties with desired traits, then specific traits like herbicide resistance and disease resistance can be introduced, but the process becomes complex and requires multiple breeding methods including backcrossing and marker-assisted selection
Solution Approach 1:
The patent applies the extraction principle by isolating and utilizing specific transgenic events with desired traits from complex breeding procedures. Instead of using multiple breeding methods to introduce multiple traits simultaneously, the patent extracts individual transgenic events (each providing a specific trait) and incorporates them separately into soybean germplasm. This simplifies the breeding process by replacing complex multi-trait breeding with sequential introduction of pre-characterized transgenic events.
Solution Approach 2:
The patent uses marker-assisted selection as an intermediary tool to facilitate the incorporation of transgenic events into soybean germplasm. Molecular markers serve as mediators that enable precise tracking and selection of desired genetic traits during backcrossing operations, reducing the complexity of phenotypic selection and accelerating the breeding process.
3Reliability
If self-pollination is allowed in soybeans, then the plant maintains its natural reproductive cycle, but new germplasm development requires breeder intervention into pollination which is contrary to the plant's natural behavior
Solution Approach 1:
The patent applies self-service by utilizing the soybean plant's natural self-pollination capability to propagate and stabilize transgenic traits once they are introduced. After transgenic events are introduced through controlled pollination, the plants naturally self-pollinate to produce homogeneous progeny, eliminating the need for continuous breeder intervention. This maintains reproductive stability while reducing operational complexity in later breeding stages.
Data Source
AI summary
The present invention is directed in part to soybean variety CL1920086 breeding and development. The present invention particularly relates to soybean variety CL1920086 and its seed, cells, germplasm, plant parts, and progeny, and methods of using CL1920086, e.g., in a breeding program.