DNA barcoding a taxonomically complex hemiparasitic genus reveals deep divergence between ploidy levels but lack of species-level resolution.

ABSTRACT: DNA barcoding is emerging as a useful tool not only for species identification but also for studying evolutionary and ecological processes. Although plant DNA barcodes do not always provide species-level resolution, the generation of large DNA barcode data sets can provide insights into the mechanisms underlying the generation of species diversity. Here, we study evolutionary processes in taxonomically complex British Euphrasia (Orobanchaceae), a group with multiple ploidy levels, frequent self-fertilization, young species divergence and widespread hybridization. We use a phylogenetic approach to investigate the colonization history of British Euphrasia, followed by a DNA barcoding survey and population genetic analyses to reveal the causes of shared sequence variation. Phylo

SUBMITTER: Wang X 

PROVIDER: S-EPMC5941139 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature