<p>Maximal glaciation and mountain glaciers of the LGM are drawn according to Ehlers and Gibbard <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0042691#pone.0042691-Ehlers1" target="_blank">[32]</a>. The borders of the seven geographic regions are indicated (see also <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0042691#pone.0042691.s001" target="_blank">Table S1</a>, where the affiliation of each accession to one of these regions is listed). A: Visualization according to taxonomy. Seven entities are distinguished: <i>A. arenosa</i> subsp. <i>arenosa</i>, <i>A. arenosa</i> subsp. <i>borbasii</i>, <i>A. carpatica</i>, <i>A. neglecta</i>, <i>A. nitida</i>, and <i>A. petrogena</i>, following Měsíček <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0042691#pone.0042691-Msek1" target="_blank">[14]</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0042691#pone.0042691-Msek2" target="_blank">[18]</a> and Kolník <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0042691#pone.0042691-Kolnk1" target="_blank">[19]</a>, and <i>Arabidopsis arenosa</i> var. <i>intermedia</i> from the Alps. B: Visualization according to ploidal level (diploids and tetraploids). Ploidal level estimates were only available for a subset of accessions. C: Visualization according to chloroplast DNA suprahaplotypes.</p
