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Mitochondrial DNA reveals genetic structuring of Pinna nobilis across the Mediterranean Sea

Sanna, Daria and Cossu, Piero and Dedola, Gian Luca and Scarpa, Fabio and Maltagliati, Ferruccio and Castelli, Alberto and Franzoi, Piero and Lai, Tiziana and Cristo, Benedetto and Curini Galletti, Marco and Francalacci, Paolo and Casu, Marco (2013) Mitochondrial DNA reveals genetic structuring of Pinna nobilis across the Mediterranean Sea. PLoS One, Vol. 8 (6), e67372. ISSN 1932-6203. Article.

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DOI: 10.1371/journal.pone.0067372


Pinna nobilis is the largest endemic Mediterranean marine bivalve. During past centuries, various human activities have promoted the regression of its populations. As a consequence of stringent standards of protection, demographic expansions are currently reported in many sites. The aim of this study was to provide the first large broad-scale insight into the genetic variability of P. nobilis in the area that encompasses the western Mediterranean, Ionian Sea, and Adriatic Sea marine ecoregions. To accomplish this objective twenty-five populations from this area were surveyed using two mitochondrial DNA markers (COI and 16S). Our dataset was then merged with those obtained in other studies for the Aegean and Tunisian populations (eastern Mediterranean), and statistical analyses (Bayesian model-based clustering, median-joining network, AMOVA, mismatch distribution, Tajima’s and Fu’s neutrality tests and Bayesian skyline plots) were performed. The results revealed genetic divergence among three distinguishable areas: (1) western Mediterranean and Ionian Sea; (2) Adriatic Sea; and (3) Aegean Sea and Tunisian coastal areas. From a conservational point of view, populations from the three genetically divergent groups found may be considered as different management units.

Item Type:Article
ID Code:9526
Uncontrolled Keywords:Pinna nobilis, marine bivalves, genetic variability
Subjects:Area 05 - Scienze biologiche > BIO/05 Zoologia
Area 05 - Scienze biologiche > BIO/18 Genetica
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Scienze della Natura e del Territorio
001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Medicina Veterinaria
Publisher:Public Library of Science
Copyright Holders:© 2013 Sanna et al.
Deposited On:04 Dec 2013 12:08

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