FN Archimer Export Format
PT J
TI Determination of gender in the pearl oyster pinctada margaritifera
BT 
AF CHAVEZ-VILLALBA, Jorge
   SOYEZ, Claude
   HUVET, Arnaud
   GUEGUEN, Yannick
   LO, Cedrik
   LE MOULLAC, Gilles
AS 1:1;2:1;3:2;4:1;5:3;6:1;
FF 1:PDG-RBE-RMPF;2:PDG-RBE-RMPF-EP;3:PDG-RBE-PFOM-PI;4:PDG-RBE-RMPF-EP;5:;6:PDG-RBE-RMPF-EP;
C1 IFREMER, Lab Ecosyst Perlicole, Taravao 98719, Tahiti, Fr Polynesia
   IFREMER, Ctr Brest, UMR Physiol & Ecophysiol Mollusques Marins 100, F-29280 Plouzane, France
   Serv Perliculture, Motu Uta, Tahiti, Fr Polynesia
C2 IFREMER, FRANCE
   IFREMER, FRANCE
   SERV PERLICULTURE, FRANCE
SI TAHITI
   BREST
SE PDG-RBE-RMPF
   PDG-RBE-RMPF-EP
   PDG-RBE-PFOM-PI
IN WOS Ifremer jusqu'en 2018
   copubli-france
IF 0.793
TC 42
UR https://archimer.ifremer.fr/doc/00040/15100/12543.pdf
LA English
DT Article
DE ;pearl oyster;Pinctada;hermaphrodite;temperature;food;stress;sex genes;sex steroids
AB The pearl industry in French Polynesia is based on exploitation of natural stocks of the black-lip pearl oyster (Pinctada margaritifera); it generates an annual turnover of 90 million euros. Improvements in pearl quality need genetic studies to improve the populations. This pearl oyster is a protandric species, where the sex-ratio normally is biased towards males. There is an increasing interest in gender control to find the mechanisms to augment female proportions for management purposes. This review summarizes information on exogenous and endogenous factors regulating gender in this and other bivalves and concludes that P. margaritifera is a protandric hermaphrodite, developing as a male during the first two years and without evidence of an effect from abiotic and biotic factors on gender during this phase. Later, pearl oysters progressively change to females, reaching a sex ratio close to 1:1 in specimens >8 years; at this stage, gender is apparently influenced by environmental parameters, but particularly by stress. Future research should seek to accurately determine the effect of temperature and food on sex ratios. Studies should be performed to characterize genes responsible for expression of gender. The use of hormones is a path that might be explored to influence the gender of pearl oysters.
PY 2011
PD AUG
SO Journal Of Shellfish Research
SN 0730-8000
PU Natl Shellfisheries Assoc
VL 30
IS 2
UT 000294312200006
BP 231
EP 240
DI 10.2983/035.030.0206
ID 15100
ER

EF