List of complete mtDNA sequences included in Figure 1.

a<p>Family ID numbers correspond to the numbers in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0042242#pone-0042242-g001" target="_blank">Figure 1</a>.</p>b<p>This family is originally from Lebanon.</p>c<p>This family is originally from Turkey.</p>d<p>This family is originally from Benin.</p>e<p>Haplogroup classification based on the most updated human mitochondrial phylogeny <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0042242#pone.0042242-vanOven1" target="_blank">[35]</a>.</p>f<p>Nucleotide positions and changes refer to rCRS <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0042242#pone.0042242-Andrews1" target="_blank">[57]</a>. The non-synonymous nucleotide changes at nps 8860 (8860G) and 15326 (15326G), present in all LHON samples, are not included because they are private mutations of the reference sequence. LHON mutations are in bold, while those with a possible synergistic effect are underlined.</p>g<p>Only the entire mitochondrial sequence #6 was already published (Olivieri et al. <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0042242#pone.0042242-Olivieri1" target="_blank">[44]</a>).