[MARMAM] new publication on spotted dolphins

Marcos Santos sotalia at gmail.com
Thu Feb 28 12:29:58 PST 2013

Dear Marmamers: The following manuscript has just been published:

Caballero, S.; Santos, M.C. de O.; Sanches, A. and Mignucci-Giannoni. 2013.
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. Biochemical
Systematics and Ecology, 48: 263-270.

Abstract: 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 a-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 FST level, but not at the FST level. Significant
differentiation at the FST 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.

Pdf files can be requested to: sotalia at gmail.com


Marcos C.
Dr. Marcos César de Oliveira Santos
Laboratório de Biologia da Conservação de Mamíferos Aquáticos
Departamento de Oceanografia Biológica, Instituto Oceanográfico,
Universidade de São Paulo
Praça do Oceanográfico, 191, Sala 145-A
Butantã, São Paulo, SP, Brasil,
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