FN Archimer Export Format
PT J
TI Recent population expansion and connectivity in the hydrothermal shrimp Rimicaris exoculata along the Mid-Atlantic Ridge
BT 
AF TEIXEIRA, Sara
   CAMBON-BONAVITA, Marie-Anne
   SERRAO, Ester A.
   DESBRUYERES, Daniel
   ARNAUD-HAOND, Sophie
AS 1:2;2:1;3:2;4:;5:1;
FF 1:PDG-DOP-DCB-EEP-LEP;2:PDG-REM-EEP-LMEE;3:;4:PDG-DOP-DCB-EEP;5:;
C1 IFREMER, Ctr Brest, DEEP, LMEE,UBO,CNRS,UMR 6197, F-29280 Plouzane, France.
   Univ Algarve, Ctr Marine Sci, CIMAR, P-8005139 Faro, Portugal.
C2 IFREMER, FRANCE
   UNIV ALGARVE, PORTUGAL
   CNRS, FRANCE
SI BREST
SE PDG-DOP-DCB-EEP-LEP
   PDG-REM-EEP-LMEE
   PDG-DOP-DCB-EEP
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-europe
IF 4.544
TC 54
TU Centre national de la recherche scientifique
   Institut français de recherche pour l'exploitation de la mer
   Université de Bretagne Occidentale
UR https://archimer.ifremer.fr/doc/00033/14394/12350.pdf
LA English
DT Article
CR EXOMAR
   MARVEL
   MOMARDREAM-NAUT1-NAUT2
   SERPENTINE
BO Unknown
   L'Atalante
   Pourquoi pas ?
DE ;Bottleneck;deep-sea biogeography;dispersal;genetic diversity;hydrothermal vents;marine biogeography;Mid-Atlantic Ridge;Rimicaris exoculata;spatio-temporal distribution
AB Aim Deep-sea hydrothermal vents are unstable habitats that are both spatially and temporally fragmented. In vent species, a 'short-term insurance' hypothesis would lead us to expect mostly self-recruitment, limiting the loss of larvae in the deep ocean or water column and increasing genetic differentiation over the time elapsed since colonization. Alternatively, a 'long-term insurance' hypothesis would support the prediction of selection for large-scale dispersal, to ensure long-term persistence in these ephemeral habitats. The main goal of this study was to infer the spatial and temporal distribution of genetic diversity of the shrimp Rimicaris exoculata, which forms high-density local populations on hydrothermal vents along the Mid-Atlantic ridge. Location Deep-sea hydrothermal vents along the Mid-Atlantic Ridge. Methods We used sequences of mitochondrial cytochrome c oxidase subunit I (COI, 710 bp) to assess the spatio-temporal distribution of genetic diversity across five hydrothermal fields from 36 degrees N to 4 degrees S. Results In contrast to previous results from pioneer studies, very high haplotype diversity was observed in vents across the entire region (i.e. 0.69-0.82), indicating current large effective population size and low drift. The star-like shape of the network of haplotypes, the lack of spatial genetic structure and the significance of tests reflecting demographic effects, together with the fitting of a population expansion model, all support a recent population expansion. Main conclusions Our results suggest a very recent common history of R. exoculata populations/demes along the Mid-Atlantic Ridge, derived after a common bottleneck or founder event and followed by a concomitant demographic expansion. This study therefore suggests a large effective population size and/or high dispersal capacity, as well as a possible recent (re) colonization of Mid-Atlantic hydrothermal vents by R. exoculata.
PY 2011
PD MAR
SO Journal Of Biogeography
SN 0305-0270
PU Wiley-blackwell
VL 38
IS 3
UT 000288462800012
BP 564
EP 574
DI 10.1111/j.1365-2699.2010.02408.x
ID 14394
ER

EF