FN Archimer Export Format
PT J
TI Insights into the genetic makeup of French Polynesian peripheral populations of the small giant clam Tridacna maxima
BT 
AF Riquet, Florentine
   Horaud, Mathilde
   Dubousquet, Vaimiti
   Tiavouane, Josina
   Lopes, Carmela
   Raharivelomanana, Phila
   Berteaux‐Lecellier, Véronique
   Planes, Serge
   Grulois, Daphné
   Andréfouët, Serge
   Van Wynsberge, Simon
   Borsa, Philippe
   Lecellier, Gaël
   Fauvelot, Cécile
AS 1:1,2;2:1,2;3:3,4,5;4:6;5:7;6:4;7:6;8:3;9:6;10:8;11:9;12:6;13:6;14:1,2;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:PDG-RBE-LEADNC;12:;13:;14:;
C1 UMR ENTROPIE (IRD, Université de La Réunion, CNRS, IFREMER, Université de la Nouvelle‐Calédonie) Villefranche‐sur‐Mer ,France
   CNRS, Laboratoire d'Océanographie de Villefranche, LOV Sorbonne Université Villefranche‐sur‐Mer, France
   PSL Research University: EPHE‐UPVD‐CNRS, USR CRIOBE Université de Perpignan Perpignan, France
   UMR EIO (IFREMER, ILM, IRD, Université de la Polynésie Française) Faaa Tahiti ,French Polynesia
   Délégation à la Recherche, Government of French Polynesia, Papeete Tahiti ,French Polynesia
   UMR ENTROPIE (IRD, Université de La Réunion, CNRS, IFREMER, Université de la Nouvelle‐Calédonie), centre IRD de Nouméa Nouméa, New Caledonia
   Département STS, Faaa Université de Polynésie Française Tahiti, French Polynesia
   C/O Ifremer/Centre Océanographique du Pacifique, Vairao UMR ENTROPIE (IRD, Université de La Réunion, CNRS, IFREMER, Université de la Nouvelle‐Calédonie) Tahiti, French Polynesia
   Ifremer, UMR 9220 ENTROPIE (IRD, Univ. Réunion, IFREMER, Univ. Nouvelle‐Calédonie, CNRS) Nouméa ,New Caledonia
C2 IRD, FRANCE
   CNRS, FRANCE
   UNIV PERPIGNAN, FRANCE
   UNIV POLYNESIE FRANCAISE, FRANCE
   GOVT FRENCH POLYNESIA, FRANCE
   IRD, FRANCE
   UNIV POLYNESIE FRANCAISE, FRANCE
   IRD, FRANCE
   IFREMER, FRANCE
SI NOUMEA
SE PDG-RBE-LEADNC
UM EIO
   ENTROPIE
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   copubli-france
   copubli-p187
   copubli-univ-france
IF 2.4
TC 0
UR https://archimer.ifremer.fr/doc/00854/96571/105004.pdf
   https://archimer.ifremer.fr/doc/00854/96571/105005.docx
LA English
DT Article
DE ;COI gene;French Polynesia;genetic differentiation;glacial refugia;microsatellite;phylogeography;Tridacna maxima
AB The small giant clam, Tridacna maxima, is distributed from the Red Sea and East African coast to French Polynesia. Across this widespread Indo‐Pacific range, T. maxima shows strong population structure, in agreement with its limited dispersal abilities. Peripheral populations may have smaller effective population sizes, increasing their vulnerability under any environmental changes. Understanding evolutionary processes at play in such regions located at the edges of T. maxima distribution is a prerequisite in the context of transfers and restocking programmes. In this study, giant clams were sampled from 14 atolls and islands within four archipelagos in the peripheral region of French Polynesia, in 2001–2002 and/or in 2012–2013, then genotyped at the COI gene and at nine microsatellite loci. Mitochondrial lineages of T. maxima from French Polynesia diverged from those sampled in Micronesia, Melanesia, the Coral Triangle and the Red Sea by 6.6–7.3%. Within French Polynesia, significant genetic structure was found, indicating restricted gene flow, and it was stable through time. Most of the genetic variation at microsatellite loci was between archipelagos. The most differentiated archipelago was the most geographically isolated (the Austral Islands). The current patterns of genetic structuring of T. maxima in French Polynesia probably result from long‐term genetic isolation with limited dispersal ability. In addition, these results underlined that sufficiently large populations of T. maxima have persisted in the Central Pacific during the last sea‐level regression. Strategies to optimize transfers and restocking programmes should be designed to preserve the genetic diversity and structure observed here, to avoid the risks of altering the genetic structure, allele loss and/or introduction of maladapted alleles in the receiving populations. 
PY 2023
PD DEC
SO Aquatic Conservation-marine And Freshwater Ecosystems
SN 1052-7613
PU Wiley
VL 33
IS 12
UT 001069821500001
BP 1514
EP 1534
DI 10.1002/aqc.4016
ID 96571
ER

EF