Data from: Vicariance, long-distance dispersal, and regional extinction–recolonization dynamics explain the disjunct circumpolar distribution of the arctic-alpine plant Silene acaulis ...

• Main Authors: Gussarova, Galina, Allen, Geraldine A., Mikhaylova, Yulia, McCormick, Laurie J., Mirré, Virginia, Marr, Kendrick L., Hebda, Richard J., Brochmann, Christian
• Format: Dataset
• Language: English
• Published: Dryad 2015
• Subjects: Middle to Late Pleistocene; trnLUAA intron; arctic-alpine; Silene stenophylla Ledeb.; refugia; Caryophyllaceae; Silene acaulis L. Jacq.; trnLUAA-trnFGAA spacer; AFLP; Silene paucifolia Ledeb.; Silene; psbD-trnTGGU spacer; rpL32-trnLUAG spacer; Arctic; Greenland; East Greenland; Silene acaulis; Beringia; Siberia
• Online Access: https://dx.doi.org/10.5061/dryad.7c550; https://datadryad.org/stash/dataset/doi:10.5061/dryad.7c550

PREMISE OF THE STUDY: Many arctic-alpine species have vast geographic ranges, but these may encompass substantial gaps whose origins are poorly understood. Here we address the phylogeographic history of Silene acaulis, a perennial cushion plant with a circumpolar distribution except for a large gap in Siberia. METHODS: We assessed genetic variation in a range-wide sample of 103 populations using plastid DNA (pDNA) sequences and AFLPs (amplified fragment length polymorphisms). We constructed a haplotype network and performed Bayesian phylogenetic analyses based on plastid sequences. We visualized AFLP patterns using principal coordinate analysis, identified genetic groups using the program structure, and estimated genetic diversity and rarity indices by geographic region. KEY RESULTS: The history of the main pDNA lineages was estimated to span several glaciations. AFLP data revealed a distinct division between Beringia/North America and Europe/East Greenland. These two regions shared only one of 17 pDNA ... : sa_AFLP_458ind_335charAFLP data matrix (0;1). See description in the readMe file.sa_pDNA_107ind_3190charpDNA sequence file in nexus format. See description in ReadMe file. ...