FN Archimer Export Format
PT J
TI Physical Proximity May Promote Lateral Acquisition of Bacterial Symbionts in Vesicomyid Clams
BT 
AF DECKER, Carole
   OLU, Karine
   ARNAUD-HAOND, Sophie
   DUPERRON, Sebastien
AS 1:1;2:1;3:1;4:2,3;
FF 1:PDG-REM-EEP-LEP;2:PDG-REM-EEP-LEP;3:PDG-RBE-HM-RHSETE;4:;
C1 IFREMER, Ctr Brest, Lab Environm Profond, REM EEP, Plouzane, France.
   UPMC CNRS IRD MNHN, UMR Systemat Adaptat Evolut Adaptat Milieux Extre, Paris, France.
   Univ Paris 06, Paris, France.
C2 IFREMER, FRANCE
   UNIV PARIS 06, FRANCE
   UNIV PARIS 06, FRANCE
SI BREST
   SETE
SE PDG-REM-EEP-LEP
   PDG-RBE-HM-RHSETE
IN WOS Ifremer jusqu'en 2018
   DOAJ
   copubli-france
   copubli-univ-france
IF 3.534
TC 19
UR https://archimer.ifremer.fr/doc/00153/26427/24527.pdf
LA English
DT Article
CR WACS
BO Pourquoi pas ?
AB Vesicomyid clams harbor intracellular sulfur-oxidizing bacteria that are predominantly maternally inherited and co-speciate with their hosts. Genome recombination and the occurrence of non-parental strains were recently demonstrated in symbionts. However, mechanisms favoring such events remain to be identified. In this study, we investigated symbionts in two phylogenetically distant vesicomyid species, Christineconcha regab and Laubiericoncha chuni, which sometimes co-occur at a cold-seep site in the Gulf of Guinea. We showed that each of the two species harbored a single dominant bacterial symbiont strain. However, for both vesicomyid species, the symbiont from the other species was occasionally detected in the gills using fluorescence in situ hybridization and gene sequences analyses based on six symbiont marker genes. Symbiont strains co-occurred within a single host only at sites where both host species were found; whereas one single symbiont strain was detected in C. regab specimens from a site where no L. chuni individuals had been observed. These results suggest that physical proximity favored the acquisition of non-parental symbiont strains in Vesicomyidae. Over evolutionary time, this could potentially lead to genetic exchanges among symbiont species and eventually symbiont displacement. Symbiont densities estimated using 3D fluorescence in situ hybridization varied among host species and sites, suggesting flexibility in the association despite the fact that a similar type of metabolism is expected in all symbionts.
PY 2013
PD JUN
SO Plos One
SN 1932-6203
PU Public Library Science
VL 8
IS 7
UT 000321692000002
DI 10.1371/journal.pone.0064830
ID 26427
ER

EF