Soybean Variety 01046904 Breeding via Marker-Assisted Selection
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Solution Overview
Problem
Current soybean breeding methods face challenges in developing stable, high-yielding varieties with desirable traits such as disease resistance, drought tolerance, and improved nutritional quality, as they rely on conventional breeding techniques that are time-consuming and unpredictable, leading to significant research costs and variability in resulting soybean varieties.
Innovation Solution
The development of the soybean variety 01046904, which incorporates specific genetic traits through a combination of traditional breeding and genetic transformation, including the introduction of a transgenic gene (MON89788) for glyphosate tolerance, and utilizes advanced breeding methods like backcrossing and marker-assisted selection to combine desirable characteristics such as herbicide resistance, disease resistance, and improved agronomic traits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional breeding techniques are used to develop soybean varieties, then genetic diversity and trait combination are achieved, but the process is time-consuming and unpredictable
Solution Approach 1:
The patent applies preliminary action by using marker-assisted selection to pre-identify plants carrying desired genetic traits before actual breeding crosses are made. Molecular markers are used to screen parental lines and predict offspring traits in advance, allowing breeders to select the most promising combinations before committing resources to multi-generation field trials. This preliminary genetic screening accelerates the breeding process by eliminating time-consuming phenotypic evaluation of intermediate generations.
Solution Approach 2:
The patent replaces mechanical/phenotypic breeding methods with molecular/biochemical analysis. Instead of relying on traditional visual assessment of plant traits across multiple generations, the invention uses DNA-based molecular markers to directly detect and track specific genetic loci associated with desired traits. This substitution of mechanical breeding observation with molecular detection dramatically reduces the time required to achieve reliable trait combination while maintaining genetic diversity.
2Reliability
If conventional breeding techniques are used to develop soybean varieties, then natural genetic variation is maintained, but the process is costly and unpredictable
Solution Approach 1:
The patent implements feedback through marker-assisted selection, where molecular markers provide continuous information about the presence and combination of desired traits during the breeding process. This feedback allows breeders to make informed decisions at each generation, selecting only those plants that carry the target genetic combinations. The iterative use of marker data across breeding generations ensures reliable trait stability while reducing the number of plants and field trials needed, thereby lowering research costs.
Solution Approach 2:
The patent replaces costly and time-consuming phenotypic evaluation and multi-generation field testing with efficient molecular marker analysis. By substituting expensive environmental trials and manual trait assessment with DNA-based detection, the invention achieves more reliable variety stability at lower research costs. The molecular markers provide direct genetic evidence of trait inheritance, eliminating the need for extensive environmental testing and reducing overall breeding program expenses.
3Productivity
If transgenic genes are introduced to improve specific traits, then targeted trait enhancement is achieved, but genetic uniformity may be reduced
Solution Approach 1:
The patent applies local quality by introducing specific transgenic traits at targeted genetic loci while maintaining the rest of the genome's natural variation. Marker-assisted selection allows precise tracking and selection of plants that carry the desired transgenic modifications at specific locations without affecting other genetic regions. This localized genetic enhancement preserves overall genetic uniformity for important agronomic traits while achieving targeted productivity improvements through the introduced genes.
Data Source
AI summary
The invention relates to the soybean variety designated 01046904. Provided by the invention are the seeds, plants and derivatives of the soybean variety 01046904. Also provided by the invention are tissue cultures of the soybean variety 01046904 and the plants regenerated therefrom. Still further provided by the invention are methods for producing soybean plants by crossing the soybean variety 01046904 with itself or another soybean variety and plants produced by such methods.