A mitochondrial DNA based phylogeny of weakfish species of the Cynoscion group (Pisces: Sciaenidae)

Vergara-Chen, Carlos; Aguirre, Windsor E.; González-Wangüemert, Mercedes; Bermingham, Eldredge

http://hdl.handle.net/10400.1/9036

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Authors

Vergara-Chen, Carlos

Aguirre, Windsor E.

González-Wangüemert, Mercedes

Bermingham, Eldredge

Abstract(s)

We infer the phylogeny of fishes in the New World Cynoscion group (Cynoscion, Isopisthus, Macrodon, Atractoscion, Plagioscion) using 1603bp of DNA sequence data from three mitochondrial genes. With the exception of Plagioscion, whose position was ambiguous, the Cynoscion group is monophyletic. However, several genera examined are not monophyletic. Atlantic and Pacific species of Cynoscion are interspersed in the tree and geminate species pairs are identified. Intergeneric relationships in the group are clarified. Our analysis is the first comprehensive phylogeny for the Cynoscion group based on molecular data and provides a baseline for future comparative studies of this important group.

Keywords

Animals Atlantic Ocean Bayes Theorem Mitochondrial DNA Mitochondrial genes Pacific Ocean Perciformes DNA Sequence Analysis Molecular evolution Phylogeny ATPase 8/6 Atractoscion Cynoscion Cytochrome b Geminate species Isopisthus Molecular systematics Macrodon Plagioscion