The RNA-seq analysis suggests a potential multi-component complement system in oyster Crassostrea gigas

The complement system is one of the major effector mechanisms of immune system, playing essential roles in both the innate and adaptive immune responses. In the present study, the counterparts of vertebrate complement components were identified by screening the sequenced genome of Crassostrea gigas, resulting in the identification of 792 gene models containing complement-related domains. … Continue reading The RNA-seq analysis suggests a potential multi-component complement system in oyster Crassostrea gigas

Advertisements

Mortality in Crassostrea gigas oysters in Ireland during 2012

OsHV-1 mu Var-related mortality is well described in several countries, including France. In Ireland, however, clear patterns in relation to the incidence and impact of this virus have been difficult to identify, at least in part because seawater temperatures rarely exceed 16 degrees C, a recognised threshold for OsHV-1 mu Var-related mortality, for prolonged periods. … Continue reading Mortality in Crassostrea gigas oysters in Ireland during 2012

Mass mortalities of unknown aetiology in Pacific oysters Crassostrea gigas in Port Stephens, New South Wales, Australia

From January to June 2013 and November to January 2014, mass mortalities were reported in Pacific oysters Crassostrea gigas cultivated in Port Stephens estuary, New South Wales, Australia. In some cases, 100% mortality was reported in both triploid and diploid C. gigas, although native species of oyster cultivated in the same areas remained unaffected. Histological … Continue reading Mass mortalities of unknown aetiology in Pacific oysters Crassostrea gigas in Port Stephens, New South Wales, Australia

Oysters can get herpes, and it’s killing them. A deadly virus threatens to decimate oyster populations around the world

Oysters, a delicacy eaten on most coastlines of the world, are a multi-billion-dollar industry. They also are intriguing to study from a health perspective. Oysters feed by filtering tiny plankton from the surrounding water, processing up to 50 gallons per oyster daily. In doing so, they improve water quality and make their ecosystems healthier. But the water … Continue reading Oysters can get herpes, and it’s killing them. A deadly virus threatens to decimate oyster populations around the world

Complete genome sequence of vibrio coralliilyticus 58, isolated from Pacific oyster (Crassostrea gigas) larvae

We report here the complete genome of Vibrio coralliilyticus strain 58, which was originally isolated from inactive Pacific oyster (Crassostrea gigas) larvae in Japan. The assembled genome consisted of two chromosomes and one plasmid. These data will provide valuable information and important insights into the biodiversity of this organism. Hyoun Joong Kim, Ji Hyung Kim, Jin Woo Jun and al., Genome … Continue reading Complete genome sequence of vibrio coralliilyticus 58, isolated from Pacific oyster (Crassostrea gigas) larvae

Molecular characterization of Pacific oyster (Crassostrea gigas) IRAK4 gene and its role in MyD88-dependent pathway

Interleukin-1 receptor-associated kinases (IRAKs) play important roles in MyD88-dependent TLR signaling, the crucial innate immune pathway in molluscs. In this study, we examined the full-length IRAK4 genetic sequence in the Pacific oyster (Crassostrea gigas) by molecular cloning. Phylogenetic analysis revealed that CgIRAK4 is most closely related to Mytilus edulis, and forms a clade with other molluscs. CgIRAK4 transcripts are widely … Continue reading Molecular characterization of Pacific oyster (Crassostrea gigas) IRAK4 gene and its role in MyD88-dependent pathway

Haemocytes from Crassostrea gigas and OsHV-1: A promising in vitro system to study host/virus interactions

Since 2008, mass mortality outbreaks associated with the detection of particular variants of OsHV-1 have been reported in Crassostrea gigas spat and juveniles in several countries. Recent studies have reported information on viral replication during experimental infection. Viral DNA and RNA were also detected in the haemolymph and haemocytes suggesting that the virus could circulate … Continue reading Haemocytes from Crassostrea gigas and OsHV-1: A promising in vitro system to study host/virus interactions