Artículo

Torres-Florez, J.P.; Hucke-Gaete, R.; Leduc, R.; Lang, A.; Taylor, B.; Pimper, L.E.; Bedriñana-Romano, L.; Rosenbaum, H.C.; Figueroa, C.C. "Blue whale population structure along the eastern South Pacific Ocean: Evidence of more than one population" (2014) Molecular Ecology. 23(24):5998-6010
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Abstract:

Blue whales (Balaenoptera musculus) were among the most intensively exploited species of whales in the world. As a consequence of this intense exploitation, blue whale sightings off the coast of Chile were uncommon by the end of the 20th century. In 2004, a feeding and nursing ground was reported in southern Chile (SCh). With the aim to investigate the genetic identity and relationship of these Chilean blue whales to those in other Southern Hemisphere areas, 60 biopsy samples were collected from blue whales in SCh between 2003 and 2009. These samples were genotyped at seven microsatellite loci and the mitochondrial control region was sequenced, allowing us to identify 52 individuals. To investigate the genetic identity of this suspected remnant population, we compared these 52 individuals to blue whales from Antarctica (ANT, n = 96), Northern Chile (NCh, n = 19) and the eastern tropical Pacific (ETP, n = 31). No significant differentiation in haplotype frequencies (mtDNA) or among genotypes (nDNA) was found between SCh, NCh and ETP, while significant differences were found between those three areas and Antarctica for both the mitochondrial and microsatellite analyses. Our results suggest at least two breeding population units or subspecies exist, which is also supported by other lines of evidence such as morphometrics and acoustics. The lack of differences detected between SCh/NCh/ETP areas supports the hypothesis that eastern South Pacific blue whales are using the ETP area as a possible breeding area. Considering the small population sizes previously reported for the SCh area, additional conservation measures and monitoring of this population should be developed and prioritized. © 2014 John Wiley & Sons Ltd.

Registro:

Documento: Artículo
Título:Blue whale population structure along the eastern South Pacific Ocean: Evidence of more than one population
Autor:Torres-Florez, J.P.; Hucke-Gaete, R.; Leduc, R.; Lang, A.; Taylor, B.; Pimper, L.E.; Bedriñana-Romano, L.; Rosenbaum, H.C.; Figueroa, C.C.
Filiación:Instituto de Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, Casilla 567, Valdivia, Chile
Centro Ballena Azul/Blue Whale Center, Pamplona 58, Silos de Torobayo, Valdivia, Chile
Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Casilla 567, Valdivia, Chile
Marine Mammal and Turtle Division, Southwest Fisheries Science Center, National Marine Fisheries Service, 8901 La Jolla Shores Drive, San Deigo, CA, United States
Lab. de Genética de la Estructura Poblacional, Depto. de Ecología, Genética y Evolución, Ciudad Universitaria, 4to. piso FCEN, Buenos Aires, Argentina
Ocean Giants Program, Wildlife Conservation Society, 2300 Southern Blvd, Bronx, NY 10460, United States
Sackler Institute for Comparative Genomics, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024-5192, United States
Instituto de Ciencias Biológicas, Universidad de Talca, 2 Norte 685, Talca, Chile
Laboratório de Biodiversidade Molecular e Conservaçao, Departamento de Genética e Evolução, Universidade Federal de São Carlos, Rod. Washington Luis, km 235, Caixa Postal 676, São Carlos, SP, CEP 13565-905, Brazil
Palabras clave:Balaenoptera musculus; biodiversity conservation; conservation genetics; eastern South Pacific; endangered species; Balaenoptera musculus; Cetacea; microsatellite DNA; mitochondrial DNA; animal; Antarctica; Balaenoptera; Bayes theorem; cell nucleus; Chile; cluster analysis; DNA sequence; female; gene flow; genetic variability; genetics; genotype; haplotype; male; Pacific Ocean; population genetics; population migration; Animal Migration; Animals; Antarctic Regions; Balaenoptera; Bayes Theorem; Cell Nucleus; Chile; Cluster Analysis; DNA, Mitochondrial; Female; Gene Flow; Genetic Variation; Genetics, Population; Genotype; Haplotypes; Male; Microsatellite Repeats; Pacific Ocean; Sequence Analysis, DNA
Año:2014
Volumen:23
Número:24
Página de inicio:5998
Página de fin:6010
DOI: http://dx.doi.org/10.1111/mec.12990
Título revista:Molecular Ecology
Título revista abreviado:Mol. Ecol.
ISSN:09621083
CODEN:MOECE
CAS:DNA, Mitochondrial
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09621083_v23_n24_p5998_TorresFlorez

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Citas:

---------- APA ----------
Torres-Florez, J.P., Hucke-Gaete, R., Leduc, R., Lang, A., Taylor, B., Pimper, L.E., Bedriñana-Romano, L.,..., Figueroa, C.C. (2014) . Blue whale population structure along the eastern South Pacific Ocean: Evidence of more than one population. Molecular Ecology, 23(24), 5998-6010.
http://dx.doi.org/10.1111/mec.12990
---------- CHICAGO ----------
Torres-Florez, J.P., Hucke-Gaete, R., Leduc, R., Lang, A., Taylor, B., Pimper, L.E., et al. "Blue whale population structure along the eastern South Pacific Ocean: Evidence of more than one population" . Molecular Ecology 23, no. 24 (2014) : 5998-6010.
http://dx.doi.org/10.1111/mec.12990
---------- MLA ----------
Torres-Florez, J.P., Hucke-Gaete, R., Leduc, R., Lang, A., Taylor, B., Pimper, L.E., et al. "Blue whale population structure along the eastern South Pacific Ocean: Evidence of more than one population" . Molecular Ecology, vol. 23, no. 24, 2014, pp. 5998-6010.
http://dx.doi.org/10.1111/mec.12990
---------- VANCOUVER ----------
Torres-Florez, J.P., Hucke-Gaete, R., Leduc, R., Lang, A., Taylor, B., Pimper, L.E., et al. Blue whale population structure along the eastern South Pacific Ocean: Evidence of more than one population. Mol. Ecol. 2014;23(24):5998-6010.
http://dx.doi.org/10.1111/mec.12990