FN Archimer Export Format
PT J
TI Population Genomics and Lagrangian Modeling Shed Light on Dispersal Events in the Mediterranean Endemic Ericaria zosteroides (=Cystoseira zosteroides) (Fucales)
BT 
AF Reynes, Lauric
   Aurelle, Didier
   Chevalier, Cristele
   Pinazo, Christel
   Valero, Myriam
   Mauger, Stéphane
   Sartoretto, Stephane
   Blanfuné, Aurélie
   Ruitton, Sandrine
   Boudouresque, Charles-François
   Verlaque, Marc
   Thibaut, Thierry
AS 1:1;2:1,2;3:1;4:1;5:3;6:3;7:4;8:1;9:1;10:1;11:1;12:1;
FF 1:;2:;3:;4:;5:;6:;7:PDG-ODE-LITTORAL-LERPAC;8:;9:;10:;11:;12:;
C1 Aix Marseille Univ, Université de Toulon, Centre National de la Recherche Scientifique, Institut de Recherche pour le Développement, Institut Méditerranéen d’Océanologie, Marseille, France
   Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum National d’Histoire Naturelle, CNRS, Sorbonne Université, École Pratique des Hautes Études, Paris, France
   IRL 3614, Evolutionary Biology and Ecology of Algae, CNRS, Sorbonne Université, Université Catholique, Université Australe du Chili, Roscoff, France
   Institut Français de Recherche pour l’Exploitation de la Mer, Zone Portuaire de Brégaillon, La Seyne-sur-mer, France
C2 UNIV AIX MARSEILLE, FRANCE
   MNHN, FRANCE
   CNRS, FRANCE
   IFREMER, FRANCE
SI TOULON
SE PDG-ODE-LITTORAL-LERPAC
IN WOS Ifremer UPR
   DOAJ
   copubli-france
   copubli-univ-france
IF 5.247
TC 8
UR https://archimer.ifremer.fr/doc/00699/81094/85271.pdf
   https://archimer.ifremer.fr/doc/00699/81094/85272.docx
LA English
DT Article
DE ;connectivity;Fucales;Mediterranean;marine forest;population genomics;Lagrangian modelling;dispersal;gene flow
AB Dispersal is a central process that affects population growth, gene flow, and ultimately species persistence. Here we investigate the extent to which gene flow occurs between fragmented populations of the deep-water brown algae Ericaria zosteroides (Turner) Greville (Sargassaceae, Fucales). These investigations were performed at different spatial scales from the bay of Marseille (western Provence) to Corsica. As dispersal of zygotes is shown to be limited over distances beyond a few meters, we used a multidisciplinary approach, based on Lagrangian modeling and population genomics to test the hypothesis that drifting of fertile parts of thallus (eggs on fertile branches), mediated by ocean currents, enable occasional gene flow between populations. Therefore we assessed the respective contribution of oceanographic connectivity, geographical isolation, and seawater temperatures to the genetic structure of this species. The genetic structure was assessed using 10,755 neutral SNPs and 12 outlier SNPs genotyped by dd-RAD sequencing in 261 individuals of E. zosteroides. We find that oceanographic connectivity is the best predictor of genetic structure, while differentiation in outlier SNPs can be explained by the depth of populations, as emphasized by the minimum seawater temperature predictor. However, further investigations will be necessary for clarifying how depth drives adaptive genetic differentiation in E. zosteroides. Our analyses revealed that local hydrodynamic conditions are correlated with the very high divergence of one population in the Bay of Marseille. Overall, the levels of gene flow mediated by drifting were certainly not sufficient to counteract differentiation by local genetic drift, but enough to allow colonization several kilometers away. This study stresses the need to consider secondary dispersal mechanisms of presumed low dispersal marine species to improve inference of population connectivity. 
PY 2021
PD JUL
SO Frontiers In Marine Science
SN 2296-7745
PU Frontiers Media SA
VL 8
UT 000659452900001
DI 10.3389/fmars.2021.683528
ID 81094
ER

EF