caa a22 4500 445319054 CHVBK 20180317142657.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10126-010-9278-y doi (NATIONALLICENCE)springer-10.1007/s10126-010-9278-y Evolutionary Patterns in Pearl Oysters of the Genus Pinctada (Bivalvia: Pteriidae) [Elektronische Daten] [Regina Cunha, Françoise Blanc, François Bonhomme, Sophie Arnaud-Haond] Pearl oysters belonging to the genus Pinctada (Bivalvia: Pteriidae) are widely distributed between the Indo-Pacific and western Atlantic. The existence of both widely distributed and more restricted species makes this group a suitable model to study diversification patterns and prevailing modes of speciation. Phylogenies of eight out of the 11 currently recognised Pinctada species using mitochondrial (cox1) and nuclear (18S rRNA) data yielded two monophyletic groups that correspond to shell size and presence/absence of hinge teeth. Character trace of these morphological characters onto the molecular phylogeny revealed a strong correlation. Pinctada margaritifera appears polyphyletic with specimens from Mauritius grouping in a different clade from others of the French Polynesia and Japan. Hence, P. margaritifera might represent a species complex, and specimens from Mauritius could represent a different species. Regarding the putative species complex Pinctada fucata/Pinctada martensii/Pinctada radiata/Pinctada imbricata, our molecular analyses question the taxonomic validity of the morphological characters used to discriminate P. fucata and P. martensii that exhibited the lowest genetic divergence and are most likely conspecific as they clustered together. P. radiata and P. imbricata were recovered as monophyletic. The absence of overlapping distributions between sister lineages and the observed isolation by distance suggests that allopatry is the prevailing speciation mode in Pinctada. Bayesian dating analysis indicated a Miocene origin for the genus, which is consistent with the fossil record. The northward movement of the Australian plate throughout the Miocene played an important role in the diversification process within Pinctada. Springer Science+Business Media, LLC, 2010 Pinctada nationallicence Evolutionary patterns nationallicence Species complex nationallicence Allopatry nationallicence Biogeography nationallicence Cunha Regina CCMar, Universidade do Algarve, Campus de Gambelas, 8005-139, Faro, Portugal aut Blanc Françoise Laboratoire "Génome, Populations, Interactions”, Station Méditerranéenne de l'Environnement Littoral, 34200, Sète, France aut Bonhomme François Laboratoire de Zoogéographie, Université Montpellier III, Route de Mende, 34199, Montpellier Cedex 5, France aut Arnaud-Haond Sophie Laboratoire de Zoogéographie, Université Montpellier III, Route de Mende, 34199, Montpellier Cedex 5, France aut Marine Biotechnology Springer-Verlag 13/2(2011-04-01), 181-192 1436-2228 13:2<181 2011 13 10126 https://doi.org/10.1007/s10126-010-9278-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10126-010-9278-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cunha Regina CCMar, Universidade do Algarve, Campus de Gambelas, 8005-139, Faro, Portugal aut NATIONALLICENCE 700 1- Blanc Françoise Laboratoire "Génome, Populations, Interactions”, Station Méditerranéenne de l'Environnement Littoral, 34200, Sète, France aut NATIONALLICENCE 700 1- Bonhomme François Laboratoire de Zoogéographie, Université Montpellier III, Route de Mende, 34199, Montpellier Cedex 5, France aut NATIONALLICENCE 700 1- Arnaud-Haond Sophie Laboratoire de Zoogéographie, Université Montpellier III, Route de Mende, 34199, Montpellier Cedex 5, France aut NATIONALLICENCE 773 0- Marine Biotechnology Springer-Verlag 13/2(2011-04-01), 181-192 1436-2228 13:2<181 2011 13 10126 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer