Soybean 5PPRS22 Segmented Breeding for Yield Stability
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Solution Overview
Problem
The development of new soybean varieties is a time-consuming process that requires precise planning and efficient resource use, aiming to combine desirable traits such as high yield, disease resistance, and environmental tolerance, while existing methods are inefficient and directionally unstable, taking six to twelve years from the first cross to delivering finished seed.
Innovation Solution
The introduction of soybean variety 5PPRS22, which is stable and high-yielding, with methods for crossing, introgressing transgenic or mutant traits, and characterizing the variety to produce plants and plant parts with improved agronomic characteristics, including disease resistance and environmental tolerance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional soybean variety development methods are used, then multiple desirable traits can be combined in a single variety, but the development process takes six to twelve years and requires extensive resources
Solution Approach 1:
The patent segments the soybean breeding process by developing inbred lines with specific desirable traits separately, then systematically combining them through controlled crosses. This segmentation allows parallel development of multiple trait combinations, reducing overall development time while maintaining the ability to combine multiple desirable traits in single varieties.
Solution Approach 2:
The patent applies preliminary action by developing and stabilizing inbred lines with specific traits before combining them. The inbred lines are pre-characterized for disease resistance, yield potential, and other desirable traits, allowing breeders to make informed crossing decisions and accelerate the variety development process without sacrificing trait combination quality.
2Reliability
If traditional breeding methods are used to develop stable, high-yielding varieties, then agronomic soundness is achieved, but the process is time-consuming and resource-intensive
Solution Approach 1:
The breeding program segments the development process into distinct inbred line generations (e.g., S1, S2, S3) with specific selection criteria for each generation. This segmentation allows systematic evaluation and stabilization of agronomic traits like disease resistance and yield potential before final variety release, ensuring reliability while improving efficiency through structured progression.
Solution Approach 2:
The patent incorporates feedback mechanisms through multi-environment testing and performance evaluation of inbred lines at each breeding stage. Data from field trials feed back into selection decisions, allowing breeders to identify and eliminate inferior lines early, thereby improving breeding efficiency while maintaining high agronomic standards through evidence-based selection.
3Adaptability or versatility
If extensive crossing and selection is performed to combine desirable traits, then trait combination is achieved, but resource efficiency decreases
Solution Approach 1:
The patent segments the trait combination process by assigning specific desirable traits to specific inbred lines based on their strengths. This segmentation reduces the need for extensive crossing and selection, as pre-developed inbred lines already possess stabilized trait combinations, thereby improving resource efficiency while maintaining adaptability.
Solution Approach 2:
The patent creates universal inbred lines that can serve multiple breeding purposes due to their stabilized and characterized traits. These inbred lines function as reusable genetic resources that can be crossed with different partners to produce varieties with various trait combinations, reducing the need for repeated extensive breeding programs and improving overall resource efficiency.
Data Source
AI summary
A novel soybean variety, designated 5PPRS22 is provided. Also provided are the seeds of soybean variety 5PPRS22, cells from soybean variety 5PPRS22, plants of soybean 5PPRS22, and plant parts of soybean variety 5PPRS22. Methods provided include producing a soybean plant by crossing soybean variety 5PPRS22 with another soybean plant, methods for introgressing a transgenic trait, a mutant trait, and/or a native trait into soybean variety 5PPRS22, methods for producing other soybean varieties or plant parts derived from soybean variety 5PPRS22, and methods of characterizing soybean variety 5PPRS22. Soybean seed, cells, plants, germplasm, breeding lines, varieties, and plant parts produced by these methods and/or derived from soybean variety 5PPRS22 are further provided.