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Origin, diversification, and historical biogeography of the genus Trachurus (Perciformes: Carangidae) by Leyla Cárdenas; Cristián E. Hernández; Elie Poulin; Antonios Magoulas; Irv Kornfield; F. Patricio Ojeda is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Origin, diversification, and historical biogeography of the genus Trachurus (Perciformes: Carangidae) about?

We addressed phylogenetic relationships in the genus Trachurus using cytochrome b gene and D-loop sequences. The trees showed Wve groups: (1) the Southwest PaciWc species (T. japonicus, T. novaezelandiae, and T. declivis); (2) The Mediterranean Sea and Eastern Atlantic species (T. mediterraneus); (3) The Atlantic Ocean species (T. lathami and T. trecae); (4) Eastern Atlantic species (T. trachurus and T. capensis); and (5) a group of highly mobile pelagic species, two from the Eastern PaciWc (T. symmetricus and T. murphyi) and one from the Eastern Atlantic (T. picturatus). The phylogeny based on Cyt b, supports the molecular clock hypothesis and our results agree with the reported fossil indicating that the origin of this genus occur when the Thetys Sea closed (around 18.4 MYA). In addition, a very slow neutral substitution rate is reported identiWed only two periods of maximum diversiWcation: the Wrst occurring between 18.4 and 15.0 MYA and the second between 8.4 MYA and present day.

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Author

Leyla Cárdenas; Cristián E. Hernández; Elie Poulin; Antonios Magoulas; Irv Kornfield; F. Patricio Ojeda

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 1055-7903)

Published

2005

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)