Phylogenetic and Morphologic Analyses of a Coastal Fish Reveals a Marine Biogeographic Break of Terrestrial Origin in the Southern Caribbean
Figure 2
Phylogenetic hypothesis for the Cathorops mapale group and related species inferred from mitochondrial sequences (∼2 kbp).
Phylogram shown was estimated from ML analyses (lnL -4686.70); well-supported clades are congruent with MP and BI topologies (outgroup Cathorops hypophthalmus not shown). Numbers below and above nodes represent RAxML bootstrap values (300 replicates via automatic estimation of runs) and Bayesian posterior probabilities, respectively (well-supported clades only). †1 Molecular clock calibration point: Pliocene rising of Panama isthmus. †2 Molecular clock estimation point for testing the hypothetical vicariant event separating Cathorops sp. and C. mapale: northward displacement of Santa Marta Massif and disruption of continental shelf (end of early Pleistocene). Locality abbreviations follow Fig. 1 and Table S1 (ISO-3166 country codes given in parenthesis).