Minimum spanning network showing relationships among 49 mtDNA haplotypes based on 1,107 bp concatenated mtDNA sequences.

<p>Each circle denotes inferred haplotypes drawn to proportionate number of individuals. Haplotype codes and the number of individuals for each haplotypes are given in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0186690#pone.0186690.s001" target="_blank">S1 Table</a>. Numbers above branches indicate mutation steps between haplotypes. Open circles on the branches represent median vectors. Branches without numbers indicate a single mutation step. Roman numerals represent clades inferred by phylogenetic analysis. Note the deep divergence within the Borneo and Sumatra haplotypes.