Abstract
High-throughput single-nucleotide polymorphism (SNP) genotyping provides a rapid way of developing resourceful sets of markers for delineating genetic structure and for understanding the basis of the taxonomic discrimination. In this paper, we present a panel of 192 SNPs for effective genotyping in sugar beet using a high-throughput marker array technology, QuantStudio 12K Flex system, coupled with Taqman OpenArray technology. The selected SNPs were evaluated for genetic diversity among a set of 150 individuals representing 15 genotypes (10 individuals each) from five cytoplasmic male steriles (CMSs), five pollinators, and five commercial varieties. We demonstrated that the proposed panel of 192 SNPs effectively differentiated the studied genotypes. A higher degree of polymorphism was observed among the CMSs as compared to pollinators and commercial varieties. PCoA and STRUCTURE analysis revealed that CMSs, pollinators, and varieties clustered into three distinct subpopulations. Our results demonstrate the utility of the identified panel of 192 SNPs coupled with TaqMan OpenArray technology as a wide set of markers for high-throughput SNP genotyping in sugar beet.
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Acknowledgments
We are grateful to the members of the BeetSeq project for providing access to unpublished data. Gaurav Sablok thanks the Department of Biodiversity and Molecular Ecology, Fondazione Edmund Mach, Italy for providing the computational support.
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Stevanato, P., Broccanello, C., Biscarini, F. et al. High-Throughput RAD-SNP Genotyping for Characterization of Sugar Beet Genotypes. Plant Mol Biol Rep 32, 691–696 (2014). https://doi.org/10.1007/s11105-013-0685-x
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DOI: https://doi.org/10.1007/s11105-013-0685-x