Organelle phylogeographies.

<p>Genealogies (insets) and geographic distributions (maps) of <b>a)</b><i>cox</i>3 and <b>b)</b><i>rbc</i> haplotypes sampled throughout the range (black shoreline) of <i>Bifurcaria bifurcata</i>. Pie charts depict haplotype frequencies at each site (white dots, see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0131530#pone.0131530.t001" target="_blank">Table 1</a> for site codes and haplotype IDs). The horizontal dashed lines delimit the geographical subdivisions considered. In the networks sampled haplotypes are represented by circles sized to their global frequency, links represent a single nucleotide change and black dots represent inferred, unsampled haplotypes. <i>Rbc</i> haplotypes B1, B2 and B5 differ in a pentanucleotide repeat.