@article{fdi:010090234,
  title = {{I}nsights into the genetic makeup of {F}rench {P}olynesian peripheral populations of the small giant clam {T}ridacna maxima},
  author = {{R}iquet, {F}. and {H}oraud, {M}. and {D}ubousquet, {V}. and {T}iavouane, {J}. and {L}opes, {C}. and {R}aharivelomanana, {P}. and {B}erteaux-{L}ecellier, {V}. and {P}lanes, {S}. and {G}rulois, {D}. and {A}ndr{\'e}fou{\¨e}t, {S}erge and {V}an {W}ynsberge, {S}. and {B}orsa, {P}hilippe and {L}ecellier, {G}ael and {F}auvelot, {C}{\'e}cile},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he small giant clam, {T}ridacna maxima, is distributed from the {R}ed {S}ea and {E}ast {A}frican coast to {F}rench {P}olynesia. {A}cross this widespread {I}ndo-{P}acific range, {T}. maxima shows strong population structure, in agreement with its limited dispersal abilities. {P}eripheral populations may have smaller effective population sizes, increasing their vulnerability under any environmental changes. {U}nderstanding 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. {I}n this study, giant clams were sampled from 14 atolls and islands within four archipelagos in the peripheral region of {F}rench {P}olynesia, in 2001-2002 and/or in 2012-2013, then genotyped at the {COI} gene and at nine microsatellite loci. {M}itochondrial lineages of {T}. maxima from {F}rench {P}olynesia diverged from those sampled in {M}icronesia, {M}elanesia, the {C}oral {T}riangle and the {R}ed {S}ea by 6.6-7.3%. {W}ithin {F}rench {P}olynesia, significant genetic structure was found, indicating restricted gene flow, and it was stable through time. {M}ost of the genetic variation at microsatellite loci was between archipelagos. {T}he most differentiated archipelago was the most geographically isolated (the {A}ustral {I}slands). {T}he current patterns of genetic structuring of {T}. maxima in {F}rench {P}olynesia probably result from long-term genetic isolation with limited dispersal ability. {I}n addition, these results underlined that sufficiently large populations of {T}. maxima have persisted in the {C}entral {P}acific during the last sea-level regression. {S}trategies 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.},
  keywords = {{COI} gene ; {F}rench {P}olynesia ; genetic differentiation ; glacial refugia ; microsatellite ; phylogeography ; {T}ridacna maxima ; {POLYNESIE} {FRANCAISE}},
  booktitle = {},
  journal = {{A}quatic {C}onservation : {M}arine and {F}reshwater {E}cosystems},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[21 p.]},
  ISSN = {1052-7613},
  year = {2023},
  DOI = {10.1002/aqc.4016},
  URL = {https://www.documentation.ird.fr/hor/fdi:010090234},
}