Soybean XB17Q12 Breeding via Marker-Assisted Selection
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Solution Overview
Problem
Current soybean breeding processes are time-consuming and resource-intensive, aiming to develop stable, high-yielding varieties with desirable traits such as disease resistance, drought tolerance, and improved fatty acid profiles, while existing methods face challenges in efficiently combining these traits in a single variety.
Innovation Solution
The development of the soybean variety XB17Q12, which is the result of careful breeding and selection, combining improved traits like disease resistance, drought tolerance, and altered fatty acid profiles, through a process involving cross-pollination, backcrossing, and genetic marker-assisted breeding to ensure homozygosity and phenotypic stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional breeding methods are used to combine multiple desirable traits in soybean varieties, then trait combination is achieved, but the breeding process becomes time-consuming and resource-intensive
Solution Approach 1:
The patent employs molecular marker-assisted selection (MAS) which provides feedback on the genetic composition of breeding lines at the DNA level. This allows breeders to track the inheritance of multiple desirable traits simultaneously through marker genotyping, enabling informed selection decisions without waiting for phenotypic expression. The feedback mechanism accelerates the breeding process by identifying desired trait combinations early in the breeding cycle, reducing the time required to develop new varieties with multiple traits.
Solution Approach 2:
The patent replaces traditional mechanical/phenotypic selection methods with molecular-level detection and selection. Instead of visually assessing plant traits in the field (mechanical observation), the invention uses DNA-based molecular markers to detect and select for desirable traits at the genetic level. This substitution of molecular techniques for traditional mechanical breeding methods significantly reduces breeding time and resource requirements while maintaining accurate trait selection.
2Stability of the object's composition
If multiple generations of breeding and selection are performed to ensure homozygosity and stability, then phenotypic stability is achieved, but the development process extends over six to twelve years
Solution Approach 1:
The patent applies preliminary action by using molecular marker-assisted selection to identify and select for homozygosity and desired trait combinations at early breeding stages, before multiple generations of phenotypic selection are required. The molecular markers provide advance information about genetic composition, allowing breeders to make selection decisions that accelerate the achievement of homozygosity and reduce the number of generations needed to stabilize varieties.
Solution Approach 2:
Molecular marker genotyping provides continuous feedback on the genetic composition and homozygosity levels of breeding lines throughout the breeding process. This feedback enables breeders to monitor progress toward homozygosity and make及时调整 to accelerate variety development, reducing the time required to achieve stable, homogeneous varieties compared to traditional methods that rely on prolonged phenotypic observation.
3Productivity
If extensive breeding programs are implemented to improve yield and agronomic characteristics, then variety performance is enhanced, but resource consumption increases
Solution Approach 1:
The patent replaces resource-intensive field-based phenotypic evaluation and selection with efficient molecular marker-based selection in the laboratory. This substitution dramatically reduces the resources required for breeding programs, including land, water, labor for field management, and time, while maintaining or improving the effectiveness of selecting for high yield and agronomic characteristics.
Solution Approach 2:
The patent uses molecular marker profiles as genetic copies or fingerprints to track and select for desirable traits without requiring the actual phenotypic expression of those traits. This copying approach allows breeders to select for yield and agronomic characteristics at the DNA level, reducing the need for extensive field trials and resource consumption associated with traditional breeding programs.
Data Source
AI summary
A novel soybean variety, designated XB17Q12 is provided. Also provided are the seeds of soybean variety XB17Q12, cells from soybean variety XB17Q12, plants of soybean XB17Q12, and plant parts of soybean variety XB17Q12. Methods provided include producing a soybean plant by crossing soybean variety XB17Q12 with another soybean plant, methods for introgressing a transgenic trait, a mutant trait, and/or a native trait into soybean variety XB17Q12, methods for producing other soybean varieties or plant parts derived from soybean variety XB17Q12, and methods of characterizing soybean variety XB17Q12. Soybean seed, cells, plants, germplasm, breeding lines, varieties, and plant parts produced by these methods and/or derived from soybean variety XB17Q12 are further provided.