[MARMAM] New Article: Patterns of population structure at microsatellite and mitochondrial DNA markers in the franciscana dolphin (Pontoporia blainvillei)

Lic. Maria Constanza Gariboldi gariboldi.constanza at maimonides.edu
Mon Dec 5 11:06:23 PST 2016

Dear colleagues,

We are pleased to announce the publication of our new paper:

Gariboldi, M. C., Túnez, J. I., Failla, M., Hevia, M., Panebianco, M. V., Paso
Viola, M. N., Vitullo, A. D. and Cappozzo, H. L. (2016), Patterns of
population structure at microsatellite and mitochondrial DNA markers in the
franciscana dolphin (*Pontoporia blainvillei*). Ecology and Evolution, 00: 1
–13. doi: 10.1002/ece3.2596 <http://dx.doi.org/10.1002/ece3.2596>

ABSTRACT: The franciscana dolphin, *Pontorporia blainvillei*, is an endemic
cetacean of the Atlantic coast of South America. Its coastal distribution
and restricted movement patterns make this species vulnerable to
anthropogenic factors, particularly to incidental bycatch. We used
mitochondrial DNA control region sequences, 10 microsatellites, and sex
data to investigate the population structure of the franciscana dolphin
from a previously established management area, which includes the southern
edge of its geographic range. *F*-statistics and Bayesian cluster analyses
revealed the existence of three genetically distinct populations. Based on
the microsatellite loci, similar levels of genetic variability were found
in the area; 13 private alleles were found in Monte Hermoso, but none in
Claromecó. When considering the mitochondrial DNA control region sequences,
lower levels of genetic diversity were found in Monte Hermoso, when
compared to the other localities. Low levels of gene flow were found
between most localities. Additionally, no evidence of isolation by distance
nor sex-biased dispersal was detected in the study area. In view of these
results showing that populations from Necochea/Claromecó, Monte Hermoso,
and Río Negro were found to be genetically distinct and the available
genetic information for the species previously published, Argentina would
comprise five distinct populations: Samborombón West/Samborombón South,
Cabo San Antonio/Buenos Aires East, Necochea/Claromecó/Buenos Aires
Southwest, Monte Hermoso, and Río Negro. In order to ensure the long-term
survival of the franciscana dolphin, management and conservation strategies
should be developed considering each of these populations as different
management units.

This paper is an Open Access publication and is freely available for view
and download at the following link:


Kind regards,

Lic. María Constanza Gariboldi
Centro de Estudios Biomédicos, Biotecnológicos, Ambientales y Diagnóstico -
Universidad Maimónides
Hidalgo 775 6to piso (1405)
Tel: 4905 1192
Fax: 4905 1133
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.uvic.ca/pipermail/marmam/attachments/20161205/8f2eb5f0/attachment.html>

More information about the MARMAM mailing list