DNA barcoding has proved difficult in a number of woody plant genera, including the ecologically important oak genus . In this study, we utilized restrictionsite-associated DNA sequencing (RAD-seq) to develop an economical single nucleotide polymorphism (SNP) DNA barcoding system that suffices to distinguish eight common, sympatric eastern North American white oak species. Two de novo clustering pipelines, PyRAD and , were used in combination with postclustering bioinformatic tools to generate a list of 291 potential SNPs, 80 of which were included in a barcoding toolkit that is easily implemented using MassARRAY mass spectrometry technology.
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