Results from the Bayesian Species Delimitation (BSD) and Generalized Mixed Yule-Coalescent (GMYC) approaches.

<p>Taxonomies resulting from both species delimitation approaches are summarized above each figure by a horizontal multicolored bar, each segment representing a different species. A: Guide trees used for each of the four BSD analyses (separately for the <i>M. polleni</i>, <i>M. mouroundavae</i>, <i>M. igneocaudatus</i> and <i>M. melanopleura</i> groups and assuming ten, two, six and nine species respectively (colored squares), cf. <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0068242#pone.0068242.s010" target="_blank">File S10</a> for details) are presented, with speciation probabilities provided for each node under each combination of priors for θ and τ_o (top, prior means = 0.1; middle, prior means = 0.001; bottom, prior mean θ = 0.1, prior mean τ_{o =}0.001). Only speciation events simultaneously supported by probabilities superior or equal to 0.99 for all three combinations of priors were considered to be relevant for species delimitation. The distinction between supported and non supported speciation events is represented by a horizontal red line above which each lineage represent a single and distinct species. B: The distinction between “inter-specific” versus “intra-specific” nodes estimated by the GMYC approach is represented by a horizontal red line, and all intra-specific relationships are colored in red on the mtDNA chronogram. The graphic in the grey box represent the lineages-through-time plot based on the ultrametric tree obtained from all mitochondrial haplotypes. The sharp increase in branching rate, corresponding to the transition from interspecies to intraspecies branching events, is indicated by a red line.