FN Archimer Export Format
PT J
TI Genomics and telemetry suggest a role for migration harshness in determining overwintering habitat choice, but not gene flow, in anadromous Arctic Char
BT 
AF MOORE, Jean-Sebastien
   HARRIS, Les N.
   LE LUYER, Jeremy
   SUTHERLAND, Ben J. G.
   ROUGEMONT, Quentin
   TALLMAN, Ross F.
   FISK, Aaron T.
   BERNATCHEZ, Louis
AS 1:1;2:2;3:1,3;4:1,4;5:1;6:2;7:5;8:1;
FF 1:;2:;3:PDG-RBE-RMPF;4:;5:;6:;7:;8:;
C1 Univ Laval, IBIS, Quebec City, PQ, Canada.
   Fisheries & Oceans Canada, Freshwater Inst, Winnipeg, MB, Canada.
   Inst Francais Rech Exploitat Mer, Tahiti, French Polynesi, France.
   Fisheries & Oceans Canada, Pacific Biol Stn, Nanaimo, BC, Canada.
   Univ Windsor, Great Lakes Inst Environm Res, Windsor, ON, Canada.
C2 UNIV LAVAL, CANADA
   MPO, CANADA
   IFREMER, FRANCE
   MPO, CANADA
   UNIV WINDSOR, CANADA
SI TAHITI
SE PDG-RBE-RMPF
UM EIO
IN WOS Ifremer jusqu'en 2018
   copubli-int-hors-europe
IF 6.131
TC 50
UR https://archimer.ifremer.fr/doc/00409/52049/52719.pdf
LA English
DT Article
DE ;Arctic;conservation;fish migration;fishery management;genotyping by sequencing;population genomics;RADseq
AB Migration is a ubiquitous life history trait with profound evolutionary and ecological consequences. Recent developments in telemetry and genomics, when combined, can bring significant insights on the migratory ecology of non-model organisms in the wild. Here, we used this integrative approach to document dispersal, gene flow and potential for local adaptation in anadromous Arctic Char from six rivers in the Canadian Arctic. Acoustic telemetry data from 124 tracked individuals indicated asymmetric dispersal, with a large proportion of fish (72%) tagged in three different rivers migrating up the same short river in the fall. Population genomics data from 6,136 SNP markers revealed weak, albeit significant, population differentiation (average pairwise FST = 0.011) and asymmetric dispersal was also revealed by population assignments. Approximate Bayesian Computation simulations suggested the presence of asymmetric gene flow, although in the opposite direction to that observed from the telemetry data, suggesting that dispersal does not necessarily lead to gene flow. These observations suggested that Arctic Char home to their natal river to spawn, but may overwinter in rivers with the shortest migratory route to minimize the costs of migration in non-breeding years. Genome scans and genetic-environment associations identified 90 outlier markers putatively under selection, 23 of which were in or near a gene. Of these, at least four were involved in muscle and cardiac function, consistent with the hypothesis that migratory harshness could drive local adaptation. Our study illustrates the power of integrating genomics and telemetry to study migrations in non-model organisms in logistically challenging environments such as the Arctic. 
PY 2017
PD DEC
SO Molecular Ecology
SN 0962-1083
PU Wiley
VL 26
IS 24
UT 000419045000003
BP 6784
EP 6800
DI 10.1111/mec.14393
ID 52049
ER

EF