Soybean Cultivar AR1215342 Marker-Assisted Breeding
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Solution Overview
Problem
Soybean breeding is complex due to self-pollination, requiring extensive intervention and research to develop new germplasm with desired traits like herbicide resistance, disease resistance, and altered oil profiles, which is unpredictable and time-consuming.
Innovation Solution
The development of soybean cultivar AR1215342, which includes transgenes for herbicide resistance, disease resistance, and modified fatty acid profiles, allowing for the introduction of desired traits through crossing and selection methods, including marker-assisted breeding and locus conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional breeding methods are used to develop new soybean germplasm, then genetic diversity can be explored, but the process is highly unpredictable and requires intensive research and development time
Solution Approach 1:
The patent replaces traditional mechanical breeding methods (manual cross-pollination, phenotypic selection) with molecular marker-based identification systems. DNA markers allow breeders to identify and select specific alleles without relying on time-consuming phenotypic observation and multiple generations of crossing, dramatically reducing breeding development time while maintaining genetic diversity exploration
Solution Approach 2:
The patent introduces molecular markers as an intermediary between genotype and phenotype selection. These markers serve as proxies for desired traits, allowing indirect selection of genetic combinations that would otherwise require extensive phenotypic evaluation over multiple generations, thus reducing the time required for breeding development
2Adaptability or versatility
If manual manipulation of sexual organs or male sterility systems are used to create hybrids, then cross-pollination can be achieved, but the process requires extensive breeder intervention
Solution Approach 1:
The patent replaces manual mechanical manipulation of floral organs with molecular marker-guided selection processes. Instead of physically performing cross-pollination and tracking pedigrees through multiple generations, breeders use DNA markers to identify and select F1 hybrids with desired genetic combinations, simplifying the overall breeding process complexity
3Adaptability or versatility
If recurrent selection and mass selection methods are employed to improve populations, then desired traits can be selected, but the breeding procedure efficiency varies and requires continuous evaluation
Solution Approach 1:
The patent replaces phenotypic-based selection methods (recurrent selection, mass selection) with molecular marker-assisted selection. DNA markers provide direct identification of desired alleles, eliminating the need for continuous phenotypic evaluation and multiple selection cycles, thereby significantly improving breeding procedure efficiency while maintaining trait selection capability
Data Source
AI summary
The present invention is in the field of soybean variety AR1215342 breeding and development. The present invention particularly relates to the soybean variety AR1215342 and its seed, cells, germplasm, plant parts, and progeny, and methods of using AR1215342 in a breeding program.