Soybean Cultivar Breeding With Marker-Guided Multi-Trait Selection
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Solution Overview
Problem
Existing soybean cultivars lack improved traits such as higher seed yield, disease resistance, drought tolerance, and altered fatty acid profiles, which are essential for enhancing agricultural productivity and nutritional value.
Innovation Solution
Development of a new soybean cultivar (20230934) with integrated traits like disease resistance, herbicide tolerance, and modified fatty acid composition, achieved through traditional breeding and genetic modification techniques, including introgression of transgenic traits and use of specific promoters and signal sequences for targeted gene expression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional breeding methods are used to develop new soybean cultivars, then genetic diversity and trait integration are improved, but the breeding process becomes time-consuming and resource-intensive
Solution Approach 1:
The patent applies preliminary action by pre-characterizing parental lines for specific traits (disease resistance, seed yield, fatty acid composition) before crossing. This allows breeders to select parents with desired traits in advance, reducing the time needed for multiple generations of selection and evaluation in the breeding process.
Solution Approach 2:
The patent uses molecular markers to copy or track specific genetic traits through generations during breeding. This allows for precise tracking of desired traits without requiring extensive phenotypic evaluation in each generation, thereby reducing time and resource requirements while maintaining trait integration accuracy.
2Productivity
If multiple desirable traits are combined in a single cultivar, then agricultural productivity and nutritional value are improved, but the complexity of breeding program management increases
Solution Approach 1:
The patent segments the breeding program into distinct modules: selecting parental lines with specific traits, performing controlled crosses, evaluating F1 hybrids for target traits, and advancing selected lines through defined generations. This segmentation allows complex multi-trait cultivar development to be managed as separate, manageable steps rather than a monolithic process.
Solution Approach 2:
The patent employs universal evaluation criteria and standardized protocols that can assess multiple traits (yield, disease resistance, fatty acid composition) using the same breeding infrastructure and data collection systems. This multi-functional approach allows a single breeding program to simultaneously develop cultivars with different trait combinations without requiring separate specialized programs for each trait.
3Manufacturing precision
If precise selection of parental germplasm is performed, then the quality of resulting cultivar traits is improved, but the difficulty of identifying suitable parents increases
Solution Approach 1:
The patent replaces traditional mechanical/visual selection methods with molecular marker-based selection. Instead of manually evaluating plant phenotypes for disease resistance or other traits, the system uses DNA markers to detect and select for desired genetic characteristics, dramatically reducing the difficulty of identifying suitable parental lines while improving selection precision.
Solution Approach 2:
The patent introduces molecular markers as intermediaries between the parental germplasm and the desired traits. These markers serve as detectable proxies for complex traits like disease resistance or fatty acid composition, making it easier to identify and select parents with the desired genetic makeup without directly measuring the complex traits themselves.
Data Source
AI summary
A soybean cultivar designated 20230934 is disclosed. The invention relates to the seeds of soybean cultivar 20230934, to the plants of soybean cultivar 20230934, to the plant parts of soybean cultivar 20230934, and to methods for producing progeny of soybean cultivar 20230934. 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 20230934. The invention also relates to methods for producing other soybean cultivars, lines, or plant parts derived from soybean cultivar 20230934, 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 20230934 with another soybean cultivar.