FN Archimer Export Format PT J TI New insights in flat oyster Ostrea edulis resistance against the parasite Bonamia ostreae BT AF MORGA, Benjamin RENAULT, Tristan FAURY, Nicole ARZUL, Isabelle AS 1:1;2:1;3:1;4:1; FF 1:PDG-RBE-AGSAE-LGP;2:PDG-RBE-AGSAE-LGP;3:PDG-RBE-AGSAE-LGP;4:PDG-RBE-AGSAE-LGP; C1 IFREMER, LGP, F-17390 La Tremblade, France. C2 IFREMER, FRANCE SI LA TREMBLADE SE PDG-RBE-AGSAE-LGP IN WOS Ifremer jusqu'en 2018 IF 2.96 TC 43 UR https://archimer.ifremer.fr/doc/00071/18218/15790.pdf LA English DT Article DE ;Protozoan;Ostrea edulis;Flat oyster;Transcriptomic;Gene expression AB Bonamiosis due to the parasite Bonamia ostreae has been associated with massive mortality in flat oyster stocks in Europe. Control of the disease currently relies on disease management practices and transfer restriction. Previously, massal selections based on survival to challenge to infection with B. ostreae have been applied to produce flat oyster families with resistant progeny. In an attempt to understand the molecular mechanisms involved in disease resistance, differentially expressed sequence tags between resistant and wild Ostrea edulis haemocytes, both infected with the parasite, were identified using suppression subtractive hybridisation. Expression of seven ESTs has been studied using quantitative reverse-transcriptase PCR. The base-line expression of an extracellular superoxide dismutase, inhibitor of apoptosis (OeIAP), Fas ligand (OeFas-ligand) and Cathepsin B was significantly increased, whilst cyclophilin B appeared significantly decreased in resistant oysters. Considering their great interest for further studies, the open reading frames of the OeFas-ligand and OeIAP were completely sequenced. Highlights ► Bonamia ostreae is an intra-haemocytes parasite. ► Flat oyster Ostrea edulis, is the natural host of B. ostreae. ► In this study we have studied genes expressed in response to the parasite. ► Extracellular superoxide dismutase (OeEcSOD) is up regulated in resistant haemocyte. ► Genes involved in apoptosis is up regulated in resistant haemocytes from flat oyster. PY 2012 PD JUL SO Fish & Shellfish Immunology SN 1050-4648 PU Academic Press Ltd- Elsevier Science Ltd VL 32 IS 6 UT 000304511800002 BP 958 EP 968 DI 10.1016/j.fsi.2012.01.026 ID 18218 ER EF