Soybean Variety 01068133 Trait Stacking via Segmentation
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Solution Overview
Problem
Current soybean breeding methods face challenges in developing stable, high-yielding varieties with improved traits such as disease resistance, drought tolerance, and herbicide resistance, which are difficult to combine effectively in a single variety.
Innovation Solution
The development of the soybean variety 01068133, which incorporates a single locus conversion, including transgenic genes for herbicide resistance, disease resistance, and improved nutritional quality, achieved through genetic transformation and breeding techniques like backcrossing and marker-assisted selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional breeding methods are used to combine multiple traits (disease resistance, drought tolerance, herbicide resistance), then the complexity of the breeding program increases, but the ability to effectively combine all desired traits in a single variety deteriorates
Solution Approach 1:
The breeding program is segmented into distinct phases: initial cross between parents with different traits, followed by backcrossing to the recurrent parent, and finally selection of progeny with desired traits. This segmentation allows systematic combination of multiple traits (herbicide resistance, disease resistance, yield) while managing program complexity through structured steps rather than attempting to combine all traits simultaneously
Solution Approach 2:
The recurrent parent is pre-selected to possess the desired baseline traits (high yield, good quality) before the breeding program begins. This preliminary action establishes a foundation that reduces the complexity of subsequent breeding steps, as only the introduction of new traits (herbicide resistance, disease resistance) needs to be achieved through crossing and selection
2Reliability
If multiple traits are introduced through genetic transformation and backcrossing, then the desired traits (herbicide resistance, disease resistance) are achieved, but the time required for variety development increases
Solution Approach 1:
The backcrossing process is continued for multiple generations (BC1, BC2, etc.) without interruption, continuously recovering the recurrent parent genome while maintaining the introduced traits. This continuous action ensures trait stability is achieved efficiently by systematically eliminating unwanted genetic material from the donor parent while preserving desired traits, reducing overall development time compared to discontinuous approaches
Solution Approach 2:
Molecular markers are used to provide feedback on the genetic composition of progeny at each backcrossing generation. This feedback allows breeders to select plants that have recovered the recurrent parent genome while retaining the introduced traits, accelerating the breeding process and reducing time by avoiding unnecessary generations of backcrossing
3Stability of the object's composition
If extensive backcrossing is performed to recover the recurrent parent genome, then the purity of the recurrent parent traits is improved, but the manufacturing complexity of the breeding process increases
Solution Approach 1:
Molecular marker technology replaces traditional phenotypic selection methods for monitoring genome recovery during backcrossing. Instead of relying on time-consuming phenotypic evaluation to assess genome purity, DNA-based markers provide rapid, accurate detection of genetic composition, simplifying the breeding process while maintaining high genome purity standards
Solution Approach 2:
The selection criteria are changed from phenotypic parameters (observable traits) to genotypic parameters (molecular marker profiles) during the backcrossing process. This parameter change allows for more precise and efficient monitoring of genome recovery, reducing the number of backcrossing generations needed to achieve desired purity levels and simplifying the overall breeding process
Data Source
AI summary
The invention relates to the soybean variety designated 01068133. Provided by the invention are the seeds, plants and derivatives of the soybean variety 01068133. Also provided by the invention are tissue cultures of the soybean variety 01068133 and the plants regenerated therefrom. Still further provided by the invention are methods for producing soybean plants by crossing the soybean variety 01068133 with itself or another soybean variety and plants produced by such methods.