Soybean Variety A1026142 Breeding via Marker-Assisted Selection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current soybean breeding methods face challenges in developing stable, high-yielding varieties with desirable traits such as disease resistance, drought tolerance, and improved nutritional quality, as they rely on conventional breeding techniques that are time-consuming and unpredictable, and often result in varieties that are not genetically superior due to environmental and genetic variability.
Innovation Solution
The development of the soybean variety A1026142, which is suitable for mid-group 2 growing regions, involves a breeding program that includes crossing with itself or other plants to produce hybrid seeds and plants, utilizing techniques like backcrossing and marker-assisted selection to introduce desired traits like herbicide resistance, disease resistance, and improved nutritional quality, while maintaining the morphological and physiological characteristics of the recurrent parent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional breeding techniques are used to develop soybean varieties, then genetic diversity and adaptability are maintained, but the breeding process is time-consuming and unpredictable
Solution Approach 1:
The patent employs marker-assisted selection (MAS) which provides feedback on the genetic composition of breeding plants at the DNA level. Molecular markers allow breeders to track specific genes and traits through generations, enabling informed selection decisions that accelerate breeding while maintaining reliability. This feedback mechanism replaces traditional phenotypic selection with genotypic information, resolving the contradiction between speed and predictability.
Solution Approach 2:
The patent substitutes mechanical/conventional breeding methods with molecular biology techniques. Instead of relying on traditional cross-breeding and phenotypic observation, the invention uses DNA-based marker systems to identify and select desired traits. This substitution of mechanical processes with molecular methods enables faster, more predictable breeding outcomes while maintaining genetic diversity.
2Reliability
If conventional breeding techniques are used, then environmental adaptability is maintained through genetic variability, but the resulting varieties lack genetic superiority for specific desirable traits
Solution Approach 1:
The patent applies local quality by focusing selection on specific genomic regions containing markers linked to desirable traits. Instead of selecting based on overall phenotypic performance, the invention identifies and selects for specific genetic loci associated with particular traits such as disease resistance or yield components. This localized selection approach achieves genetic superiority for specific traits while maintaining overall genetic diversity for environmental adaptability.
Solution Approach 2:
The patent changes the parameter of selection from phenotypic characteristics to genotypic markers. By using molecular markers to detect specific DNA sequences associated with desirable traits, the invention enables precise selection for genetic superiority. This parameter change allows breeders to target specific traits while maintaining the genetic background necessary for environmental adaptability.
3Adaptability or versatility
If multiple breeding objectives are pursued simultaneously (yield, disease resistance, drought tolerance, nutritional quality), then comprehensive improvement is achieved, but the breeding program complexity increases
Solution Approach 1:
The patent applies universality by using a single molecular marker system to achieve multiple breeding objectives simultaneously. The same marker-assisted selection framework can track genes for yield, disease resistance, drought tolerance, and nutritional quality all at once. This multi-functional approach simplifies the breeding program compared to conducting separate breeding programs for each trait, as the marker system provides a unified method for selecting across multiple traits.
Solution Approach 2:
The patent merges multiple selection criteria into a single integrated marker-assisted selection process. Instead of evaluating and selecting for each trait separately through multiple breeding programs, the invention combines all selection objectives into one unified approach using molecular markers. This merging reduces program complexity by providing a single methodology that addresses all breeding goals simultaneously.
Data Source
AI summary
The invention relates to the soybean variety designated A1026142. Provided by the invention are the seeds, plants and derivatives of the soybean variety A1026142. Also provided by the invention are tissue cultures of the soybean variety A1026142 and the plants regenerated therefrom. Still further provided by the invention are methods for producing soybean plants by crossing the soybean variety A1026142 with itself or another soybean variety and plants produced by such methods.