Soybean Variety 612860668 Marker-Assisted Breeding
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Solution Overview
Problem
Soybean breeding faces challenges in predicting phenotypic expression due to genetic complexity and environmental factors, making it difficult to reproduce stable, high-yielding varieties consistently.
Innovation Solution
Development of the soybean variety 61286068, which includes a transgene conferring herbicide resistance and specific agronomic traits, along with methods for crossing, selfing, backcrosses, and transformation to produce hybrid seeds and plants with superior characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional breeding methods are used to develop soybean varieties, then variety diversity can be achieved, but phenotypic expression cannot be predicted due to genetic complexity and environmental factors
Solution Approach 1:
The patent replaces traditional phenotype-based selection with molecular marker-assisted selection. Specific molecular markers (e.g., SSR markers like EXSATT001, EXSATT002) are used to directly detect and select for desired genetic traits, eliminating the need to predict phenotypic expression from complex genetic and environmental interactions. This substitution of mechanical/observational methods with molecular detection methods resolves the contradiction by providing precise genetic measurement independent of environmental variability.
2Productivity
If multiple breeding methods (crossing, selfing, backcrosses) are applied to produce hybrid seeds, then superior characteristics can be achieved, but the breeding process complexity increases
Solution Approach 1:
The patent implements feedback through molecular marker analysis at multiple stages of the breeding process. By continuously monitoring the presence and combination of specific molecular markers in parent lines, F1 hybrids, and subsequent generations, breeders can make informed decisions about which plants to advance or cross. This feedback mechanism streamlines the complex breeding process by eliminating trial-and-error approaches and enabling targeted selection based on known genetic composition rather than phenotypic observation.
Solution Approach 2:
The patent applies preliminary action by pre-characterizing parent lines using molecular markers before initiating crossing programs. Parents are selected and validated based on their molecular marker profiles to ensure they possess the desired genetic traits. This preliminary genetic characterization prevents the need for extensive phenotypic screening later in the breeding process, reducing overall complexity while maintaining high productivity in hybrid seed production.
Data Source
AI summary
The soybean variety 61286068 is disclosed. The invention relates to seeds, plants, plant cells, plant tissue, harvested products and soybean lint as well as to hybrid soybean plants and seeds obtained by repeatedly crossing plants of variety 61286068 with other plants. The invention also relates to plants and varieties produced by the method of essential derivation from plants of 61286068 and to plants of 61286068 reproduced by vegetative methods, including but not limited to tissue culture of regenerable cells or tissue from 61286068.