FN Archimer Export Format
PT J
TI Microsatellite analysis of 6-hour-old embryos reveals no preferential intraspecific fertilization between cupped oysters Crassostrea gigas and Crassostrea angulata
BT 
AF HUVET, Arnaud
   BALABAUD, K
   BIERNE, Nicolas
   BOUDRY, Pierre
AS 1:;2:;3:;4:;
FF 1:PDG-DRV-RA-PI;2:;3:PDG-DRV-RA-DCOP-AT;4:PDG-DRV-RA-LGP;
C1 IFREMER, Lab Genet & Pathol, F-17390 La Tremblade, France.
   IFREMER, CNRS, UMR 5000, Lab Genome Populat Interact, F-34200 Sete, France.
C2 IFREMER, FRANCE
   IFREMER, FRANCE
SI BREST
   TAHITI
   LA TREMBLADE
SE PDG-DRV-RA-PI
   PDG-DRV-RA-DCOP-AT
   PDG-DRV-RA-LGP
IN WOS Ifremer jusqu'en 2018
IF 1.408
TC 30
UR https://archimer.ifremer.fr/doc/2001/publication-436.pdf
LA English
DT Article
DE ;Paternal contribution;Microsatellites;In vitro crossings;Hybridization;Crassostrea angulata;Crassostrea gigas
AB Experimental examination of reproductive isolation is the first step in understanding li,hybridization processes. Here, we studied preferential fertilization between 2 cupped oyster taxa, Crassostrea angulata and Crassostrea gigas, as a potential prezygotic reproductive isolation. Early examination of sperm competition is now possible by molecular analysis of oyster embryos. This avoids the confounding effect of differential mortality during the larval stage. Six hundred embryos were sampled from 2 crosses. Three microsatellite loci were enough to determine without ambiguity the taxa of contributing sires of embryos. No evidence of preferential fertilization between gametes from the same taxa was shown. A significantly higher contribution of the C. gigas males was revealed with the C. angulata females, but not with the C. gigas females, which might suggest early heterosis or interaction differences between gametes. In the light of these results, natural hybridization between both taxa call be expected in cases of their geographical coexistence, as in the Southern European populations in which both taxa. are in contact as a result of aquaculture development.
PY 2001
PD SEP
SO Marine Biotechnology
SN 1436-2228
PU Springer
VL 3
IS 5
UT 000172433600005
BP 448
EP 453
DI 10.1007/s10126-001-0017-2
ID 436
ER

EF