Maximum likelihood tree based on chloroplast DNA marker <i>trn</i>L for a subset of <i>Sphagnum magellanicum</i> (both haploids and diploids) and <i>S</i>. <i>alaskense</i> samples representing all genetic groups inferred by the software Structure.

<p>The different genetic groups are indicated with colours corresponding to the ones used in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0148447#pone.0148447.g002" target="_blank">Fig 2</a> (both maps). Another species from the subgenus <i>Sphagnum</i>, <i>S</i>. <i>austinii</i>, was used to root the tree.