Detection and description of a particular Ostreid herpesvirus 1 genotype associated with massive mortality outbreaks of Pacific oysters, Crassostrea gigas, in France in 2008

Virus Research
Amélie SegarraTristan Renault

Abstract

Ostreid herpesvirus 1 (OsHV-1) infections have been reported around the world and are associated with high mortalities of the Pacific oyster (Crassostrea gigas). In the summer 2008, abnormal mortality rates ranging from 80% to 100% were reported in France and affected only Pacific oysters. Analyses of oyster samples collected during mortality outbreaks demonstrated a significant detection of OsHV-1 (75% of analysed batches), which appeared stronger than previous years. DNA sequencing based on C and IA regions was carried out on 28 batches of OsHV-1 infected Pacific oysters collected in 2008. Polymorphisms were described in both the C and IA regions and characterized a genotype of OsHV-1 not already reported and termed OsHV-1 microVar. A microsatellite zone present in the C region showed several deletions. Additionally, 44 isolates collected in France and in the USA, from 1995 to 2007 were sequenced and compared to the 2008 sequences. The analyses of 76 sequences showed OsHV-1 microVar detection only in 2008 isolates. These data suggest that OsHV-1 microVar can be assumed as an emergent genotype.

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Citations

Jan 15, 2014·Veterinary Research·Tristan RenaultSylvie Lapègue
Apr 1, 2014·Journal of Invertebrate Pathology·Amélie SegarraTristan Renault
Jul 26, 2014·Diseases of Aquatic Organisms·Ryan B Carnegie, Marc Y Engelsma
Jul 3, 2013·Environmental Science and Pollution Research International·Pierrick MoreauTristan Renault
Aug 13, 2011·Veterinary Research·Edmund J Peeler, Nicholas G H Taylor
Sep 22, 2011·Microbial Ecology·Colleen A Burge, Carolyn S Friedman
Feb 18, 2016·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Fabrice PernetRichard J Whittington
Feb 18, 2016·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Ryan B CarnegieDavid Bushek
Feb 18, 2016·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Ximing Guo, Susan E Ford
Jun 1, 2014·Marine Drugs·Romain GastineauJean-Luc Mouget
Nov 12, 2014·Environmental Microbiology·D GoudenègeF Le Roux
Jul 11, 2014·Journal of Proteomics·Charlotte CorporeauStéphanie Madec
Dec 5, 2012·Current Opinion in Virology·Alexander G Murray
Jan 2, 2013·Fish & Shellfish Immunology·Paula C LimaMathew Cook
Mar 22, 2012·Journal of Invertebrate Pathology·Edmund J Peeler
Dec 18, 2015·Journal of Invertebrate Pathology·Amélie SegarraTristan Renault
Aug 25, 2015·The Journal of General Virology·Timothy J GreenCaroline Montagnani
Mar 11, 2016·Transboundary and Emerging Diseases·M A ThrushE J Peeler
Nov 4, 2015·Journal of Invertebrate Pathology·Claire MartenotMaryline Houssin
Sep 13, 2015·Fish & Shellfish Immunology·Qing WangJianmin Zhao
Sep 20, 2015·Fish & Shellfish Immunology·Timothy J GreenCaroline Montagnani
Dec 6, 2011·Transboundary and Emerging Diseases·M A ThrushE J Peeler

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