Soybean Variety A1026729 Breeding via Segmented Backcrossing
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Solution Overview
Problem
Current soybean breeding methods face challenges in developing stable, high-yielding varieties that combine desirable traits such as disease resistance, drought tolerance, and improved nutritional quality, with existing techniques being time-consuming and unpredictable, and lacking control over genetic combinations.
Innovation Solution
The development of the soybean variety A1026729, which includes specific breeding methods like backcrossing and genetic transformation to introduce desired traits like herbicide resistance, disease resistance, and improved nutritional quality, while maintaining the variety's morphological and physiological characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional soybean breeding methods are used, then the breeding process is simple and maintains existing variety characteristics, but the development of stable, high-yielding varieties with multiple desirable traits is time-consuming and unpredictable
Solution Approach 1:
The patent applies preliminary action by using pre-developed inbred lines with known desirable traits (disease resistance, drought tolerance, high yield) as starting materials. The breeding program begins with selected inbred lines rather than from scratch, significantly reducing the time required to develop new varieties while maintaining predictability through controlled backcrossing to specific inbred lines.
Solution Approach 2:
The patent utilizes parameter changes by systematically varying breeding parameters such as selecting specific inbred lines with particular trait combinations, controlling the number of backcrossing generations, and adjusting selection criteria at each stage. This controlled variation in breeding parameters enables efficient development of varieties with multiple desirable traits while managing the breeding cycle duration.
2Reliability
If conventional breeding techniques are used, then the breeding process is straightforward, but control over genetic combinations and combination of multiple desirable traits is limited
Solution Approach 1:
The patent applies segmentation by dividing the breeding program into distinct phases: selection of inbred lines, backcrossing to specific inbred lines, self-pollination for homozygosity, and field testing. Each phase has specific objectives and criteria, making the overall complex process of combining multiple traits manageable and predictable through systematic segmentation.
Solution Approach 2:
The patent uses inbred lines as intermediary elements that bridge the gap between parental varieties and the desired final variety. These inbred lines serve as controlled intermediaries with known genetic compositions, enabling predictable combination of desirable traits while managing the complexity of multi-trait breeding through standardized intermediate steps.
3Adaptability or versatility
If traditional breeding methods are used, then the process is simple and maintains existing variety characteristics, but development of varieties with improved agronomic traits and nutritional quality is insufficient
Solution Approach 1:
The patent applies preliminary action by pre-selecting and pre-characterizing inbred lines with desirable traits before the main breeding program begins. This preliminary selection of inbred lines with known trait profiles enables rapid combination of multiple traits (disease resistance, drought tolerance, nutritional quality) in the final variety without time-consuming trial-and-error processes.
Solution Approach 2:
The patent utilizes composite materials by combining multiple desirable traits from different inbred lines into a single variety through controlled backcrossing. The final variety integrates composite characteristics including disease resistance, drought tolerance, high yield, and improved nutritional quality, achieving trait diversity while managing development time through systematic combination of pre-selected components.
Data Source
AI summary
The invention relates to the soybean variety designated A1026729. Provided by the invention are the seeds, plants and derivatives of the soybean variety A1026729. Also provided by the invention are tissue cultures of the soybean variety A1026729 and the plants regenerated therefrom. Still further provided by the invention are methods for producing soybean plants by crossing the soybean variety A1026729 with itself or another soybean variety and plants produced by such methods.