Initial description of the phylogeography, population structure and genetic diversity of Atlantic spotted dolphins from Brazil and the Caribbean, inferred from analyses of mitochondrial and nuclear DNA

Autor(es)

Caballero, Susana ^[1] ; Santos, Marcos C. de O. ^[2] ; Sanches, Alexandra ^[3] ; Mignucci-Giannoni, Antonio A. ^[4]

Afiliação do(s) autor(es)

^[1] Univ Los Andes, Dept Ciencias Biol, Lab Ecol Mol Vertebrados Acuat LEMVA, Bogota - Colombia

^[2] Univ Sao Paulo, Inst Oceanog, Dept Oceanog Biol, Lab Biol Conservacao Mamiferos Aquat, BR-05508120 Sao Paulo - Brazil

^[3] Univ Estadual Paulista, Dept Ecol, Lab Biol Conservacao LaBiC, BR-13506900 Rio Claro, SP - Brazil

^[4] Univ Interamer Puerto Rico, Red Caribena Varamientos, San Juan, PR 00936 - USA

• Tipo de documento: Artigo Científico
• Fonte: Biochemical Systematics and Ecology; v. 48, p. 263-270, JUN 2013.
• Citações Web of Science: 13

Resumo

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. (AU)

• Processo FAPESP: 05/59439-5 - Parâmetros populacionais e aspectos ecológicos para a conservação do boto-cinza, Sotalia guianensis, no sul de São Paulo e no norte do Paraná
• Beneficiário: Marcos César de Oliveira Santos
• Linha de fomento: Bolsas no Brasil - Apoio a Jovens Pesquisadores
• Processo FAPESP: 05/54149-9 - Parâmetros populacionais e aspectos ecológicos para a conservação do boto-cinza, Sotalia guianensis, no sul de São Paulo e no norte do Paraná
• Beneficiário: Marcos César de Oliveira Santos
• Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores