Journal
BIOCHEMICAL SYSTEMATICS AND ECOLOGY
Volume 48, Issue -, Pages 263-270Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bse.2012.12.016
Keywords
Phylogeography; Mitochondrial DNA; alpha-Lactalbumin; Atlantic spotted dolphin; Stenella frontalis; Population structure
Funding
- Fundo Nacional do Meio Ambiente (FNMA), through the program Projeto de Conservacao e Utilizacao Sustentavel da Diversidade Biologica Brasileira (PROBIO), from the Ministerio do Meio Ambiente (BIRD/GEF/CNPq - Brazil)
- Earthwatch Institute
- CNPq [308331/2010-9]
- FAPESP [05/59439-5, 05/54149-9]
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We provide initial information regarding the population structure and genetic diversity of Stenella frontalis from the Caribbean and southeastern Brazil from analyses of mitochondrial control region sequences and sequences from the first intron of the alpha-lactalbumin gene. Comparisons with previously described S. frontalis sequences showed a high number of haplotypes shared between populations throughout their distribution range. High diversity was found for southeastern Brazil and Caribbean samples, and population structure analyses indicate significant differentiation among population units at the F-ST level, but not at the Phi(ST) level. Significant differentiation at the F-ST level was found between the Caribbean population unit and all other populations units. These results suggest historical or present connectivity between the Azores and Madeira and the southeastern Brazil groups and population differentiation between the Caribbean and southeastern Brazil, supporting the notion of two separate stocks in the waters around the Atlantic coast of South America. (C) 2013 Elsevier Ltd. All rights reserved.
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