caa a22 4500 445845945 CHVBK 20180317145359.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s10709-012-9628-y doi (NATIONALLICENCE)springer-10.1007/s10709-012-9628-y Global and New Caledonian patterns of population genetic variation in the deep-sea splendid alfonsino, Beryx splendens , inferred from mtDNA [Elektronische Daten] [Lauriana Lévy-Hartmann, Valérie Roussel, Yves Letourneur, Daniel Sellos] Splendid alfonsino Beryx splendens is a commercial species in several countries, but is not currently exploited in New Caledonia. Information on species biology and genetics can influence the development of fisheries and assist in their management, but the genetic structuring and diversity of B. splendens populations remain largely unknown. To improve knowledge of genetic parameters, we used mitochondrial DNA sequences to conduct a comparative study of populations from throughout the world. Fragments of 815bp of cytochrome b gene were sequenced and used to interpret the species history. We analyzed 204 individuals representing 14 geographical populations worldwide. A special focus was put on populations from New Caledonia. Analysis of variation between sequences, based on pairwise F statistics and AMOVA, demonstrated a population subdivision between the Atlantic and Indo-Pacific Oceans (Fst=0.11-0.32; P<0.05). Minimum-spanning network analysis revealed a mainly star-shaped pattern, with two lineages that may represent population expansion following a bottleneck/founder event and/or suggest colonization by migratory events over large distances. Our observations demonstrated that the species seems to follow the oceanic currents. Analysis of the nucleotide sequences revealed 122 variable sites, which defined numerous haplotypes, some associated with particular geographical regions. These data suggest an extremely high intra-specific genetic diversity, even at small scales. Focusing on the New Caledonia area, statistical analysis did not reveal sub-structuring among samples, suggesting again that at least a fraction of individuals migrate. No significant isolation by distance pattern was observed in this species (R=−0.22; P=0.79) among seamount populations in the EEZ. Springer Science+Business Media B.V., 2012 Population genetics nationallicence Deep-sea fish nationallicence mtDNA nationallicence Cytochrome b nationallicence Genetic diversity nationallicence Genetic structure nationallicence Migration nationallicence Lévy-Hartmann Lauriana Laboratoire Insulaire du Vivant et de l'Environnement, Université de la Nouvelle-Calédonie, BP R4, 98851, Nouméa Cedex, New Caledonia, France aut Roussel Valérie Département «Milieux et Peuplements Aquatiques», Muséum National d'Histoire Naturelle, UMR 7208 MNHN/UPMC/CNRS, «Biologie des Organismes Marins et Ecosystèmes», Station de Biologie Marine, BP 225, 29182, Concarneau Cedex, France aut Letourneur Yves Laboratoire Insulaire du Vivant et de l'Environnement, Université de la Nouvelle-Calédonie, BP R4, 98851, Nouméa Cedex, New Caledonia, France aut Sellos Daniel Département «Milieux et Peuplements Aquatiques», Muséum National d'Histoire Naturelle, UMR 7208 MNHN/UPMC/CNRS, «Biologie des Organismes Marins et Ecosystèmes», Station de Biologie Marine, BP 225, 29182, Concarneau Cedex, France aut Genetica Springer Netherlands 139/11-12(2011-12-01), 1349-1365 0016-6707 139:11-12<1349 2011 139 10709 https://doi.org/10.1007/s10709-012-9628-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10709-012-9628-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lévy-Hartmann Lauriana Laboratoire Insulaire du Vivant et de l'Environnement, Université de la Nouvelle-Calédonie, BP R4, 98851, Nouméa Cedex, New Caledonia, France aut NATIONALLICENCE 700 1- Roussel Valérie Département «Milieux et Peuplements Aquatiques», Muséum National d'Histoire Naturelle, UMR 7208 MNHN/UPMC/CNRS, «Biologie des Organismes Marins et Ecosystèmes», Station de Biologie Marine, BP 225, 29182, Concarneau Cedex, France aut NATIONALLICENCE 700 1- Letourneur Yves Laboratoire Insulaire du Vivant et de l'Environnement, Université de la Nouvelle-Calédonie, BP R4, 98851, Nouméa Cedex, New Caledonia, France aut NATIONALLICENCE 700 1- Sellos Daniel Département «Milieux et Peuplements Aquatiques», Muséum National d'Histoire Naturelle, UMR 7208 MNHN/UPMC/CNRS, «Biologie des Organismes Marins et Ecosystèmes», Station de Biologie Marine, BP 225, 29182, Concarneau Cedex, France aut NATIONALLICENCE 773 0- Genetica Springer Netherlands 139/11-12(2011-12-01), 1349-1365 0016-6707 139:11-12<1349 2011 139 10709 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer