FN Archimer Export Format PT J TI Culture site dependence on pearl size realization in Pinctada margaritifera in relation to recipient oyster growth and mantle graft biomineralization gene expression using the same donor phenotype BT AF LE PABIC, Lore PARRAD, Sophie SHAM KOUA, Manaarii NAKASAI, Seiji SAULNIER, Denis DEVAUX, Dominique KY, Chin-Long AS 1:1;2:1;3:1;4:2;5:1;6:2,3;7:1; FF 1:PDG-RBE-RMPF;2:PDG-RBE-HMMN-RHPEB;3:PDG-RBE-RMPF;4:;5:PDG-RBE-RMPF;6:;7:PDG-RBE-RMPF; C1 IFREMER, UMR 241, EIO, Labex Corail,Ctr Pacifique, BP 7004, Taravao 98719, Tahiti, Fr Polynesia. SCA Regahiga Pearls, BP 48, Rikitea 98755, Gambier, Fr Polynesia. Grp Interet Econ Poe O Rikitea, BP 176, Rikitea 98755, Gambier, Fr Polynesia. C2 IFREMER, FRANCE SCA REGAHIGA PEARLS, FRANCE GIE POE O RIKITEA, FRANCE SI TAHITI PORT-EN-BESSIN SE PDG-RBE-RMPF PDG-RBE-HMMN-RHPEB UM EIO IN WOS Ifremer jusqu'en 2018 copubli-france IF 2.176 TC 22 UR https://archimer.ifremer.fr/doc/00321/43191/42738.pdf LA English DT Article DE ;Pinctada margaritifera;Cultured pearl size;Donor oysters;Recipient oysters;Gene expression;Environmental influences AB Size is the most important and valuable quality of the cultured black-lip pearl, Pinctada margaritifera. As this pearl aquaculture is carried out at numerous grow-out sites, this study analyzes the environmental influence on pearl size parameters (nacre weight and thickness) in relation to the recipient oyster biometric parameters (shell thickness, height, width, and oyster weight) at harvest time. Toward this end, an experimental graft was designed by using a homogeneous donor oyster phenotype. The recipient oysters were randomly and equally transferred and reared in five commercial and contrasting grow-out locations. Overall inter-site comparisons revealed that the cultured pearl size (N=2168) and the biometric parameters of the recipient oysters were highest for sites with warmer temperatures with low seasonal variation in comparison to the southern latitude sites. These results were supported by positive correlations between pearl nacre thickness and recipient oyster shell thickness, height, and width. In parallel, the biomineralization potential of the mantle graft was screened through four genes encoding aragonite (Pif 177, MSI60) and calcite (shematrin 9, aspein). As the gene expression levels were the same among all the donor oysters, this finding demonstrates that: 1) the pearl sac that originated from the mantle graft was not isolated from environmental variations during the culture period and 2) the phenotypic expressions of the two biomineralizing tissues in the recipient oyster were consistent (shell and pearl). In the near future, this knowledge will be helpful at the production sites of genetically selected donor oyster lines for growth produced in hatchery systems. PY 2016 PD DEC SO Estuarine Coastal And Shelf Science SN 0272-7714 PU Academic Press Ltd- Elsevier Science Ltd VL 182 IS Part.B UT 000390728100010 BP 294 EP 303 DI 10.1016/j.ecss.2016.03.009 ID 43191 ER EF