Soybean Cultivar S170121 Breeding for Trait Stability
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Solution Overview
Problem
The development of new soybean cultivars is a time-consuming process that requires precise planning and efficient resource use, aiming to combine desirable traits such as higher seed yield, disease resistance, drought tolerance, and improved fatty acid profile, while existing methods are limited in efficiently introducing these traits into soybean plants.
Innovation Solution
The introduction of soybean cultivar S170121, which includes methods for crossing, mutagenesis, and transformation to introduce transgenic or mutant traits, such as herbicide resistance and disease resistance, into soybean plants, utilizing regenerable cells in tissue culture to produce plants with specific characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional breeding methods are used to combine desirable traits in soybean cultivars, then the cultivar stability and agronomic quality are improved, but the breeding process becomes time-consuming and resource-intensive
Solution Approach 1:
The patent applies preliminary action by pre-selecting parental lines with specific desirable traits (herbicide tolerance, disease resistance, yield characteristics) before crossing. The breeding program is carefully planned and structured in advance with defined objectives, allowing systematic combination of traits rather than random breeding, thus reducing the time required while maintaining cultivar stability.
Solution Approach 2:
The patent uses an intermediary approach by employing specific parental lines as mediators to transfer desired traits. For example, parental line P0401 containing herbicide tolerance genes is used as an intermediary to introduce this trait into the soybean cultivar through controlled crossing, enabling efficient trait transfer without lengthy breeding processes.
2Adaptability or versatility
If multiple desirable traits are combined in a single cultivar through traditional breeding, then the agronomic quality and yield are improved, but the complexity of the breeding program increases
Solution Approach 1:
The patent applies segmentation by dividing the breeding program into distinct phases and targeting specific traits through separate parental lines. Each parental line contributes specific segmented traits (e.g., P0401 for herbicide tolerance, P0209 for disease resistance), allowing systematic combination of multiple traits without overwhelming program complexity.
Solution Approach 2:
The patent employs universality by selecting parental lines that serve multiple functions. For instance, parental lines are chosen that simultaneously provide yield improvement, stress tolerance, and quality traits, allowing a single crossing program to achieve multiple breeding objectives and reduce overall program complexity.
3Productivity
If new traits such as herbicide resistance and disease resistance are introduced into soybean plants, then the productivity and ease of operation are improved, but the manufacturing precision and trait stability may be compromised
Solution Approach 1:
The patent uses disposable transgenic parental lines containing specific resistance traits (herbicide tolerance, disease resistance) that are used for crossing purposes and then discarded. These parental lines serve as temporary vehicles to introduce desired traits into the breeding population, allowing efficient trait introduction while maintaining stability in the resulting cultivars through controlled backcrossing and selection.
Data Source
AI summary
A soybean cultivar designated S170121 is disclosed. The invention relates to the seeds of soybean cultivar S170121, to the plants of soybean cultivar S170121, to the plant parts of soybean cultivar S170121, and to methods for producing progeny of soybean cultivar S170121. The invention also relates to methods for producing a soybean plant containing in its genetic material one or more transgenes and to the transgenic soybean plants and plant parts produced by those methods. The invention also relates to soybean cultivars or breeding cultivars, and plant parts derived from soybean cultivar S170121. The invention also relates to methods for producing other soybean cultivars, lines, or plant parts derived from soybean cultivar S170121, and to the soybean plants, varieties, and their parts derived from use of those methods. The invention further relates to hybrid soybean seeds, plants, and plant parts produced by crossing cultivar S170121 with another soybean cultivar.