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Figure 3 | BMC Evolutionary Biology

Figure 3

From: Comprehensive phylogenetic analysis of all species of swordtails and platies (Pisces: Genus Xiphophorus) uncovers a hybrid origin of a swordtail fish, Xiphophorus monticolus, and demonstrates that the sexually selected sword originated in the ancestral lineage of the genus, but was lost again secondarily

Figure 3

Mitochondrial and nuclear phylogenies of the nine northern swordtail species. The phylogenetic trees were constructed from (a) combined sequences of two mtDNA loci (1235 bp) (complete control region and a segment of the cytochrome b gene), (b) combined sequences of eleven nuclear loci (7073 bp), and (c) combined sequences of two mitochondrial and eleven nuclear loci (8308 bp). Numbers indicate Bayesian posterior probabilities, Maximum-Likelihood, Neighbor-Joining and Maximum-Parsimony bootstrap values, respectively. The values of the branch length that was truncated are 0.115 (a), 0.007 (b) and 0.012 (c). Patterns of the geographical distributions of the nine species in the northern swordtails are shown (d) (map is modified from [2]). Species in the same clades inferred by [21] are shown in same color.

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