Oyster disease in a changing environment: Decrypting the link between pathogen, microbiome and environment

Highlights • Infectious diseases are a major obstacle for the growth of aquaculture industries. • Shifting environmental conditions are important triggers of oyster diseases. • The microbiome is emerging as a possible contributor to the oyster disease process. • Here we review current oyster microbiome studies in the context of disease. William L. King, Cheryl … Continue reading Oyster disease in a changing environment: Decrypting the link between pathogen, microbiome and environment

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A needle in a haystack: tracing bivalve-associated viruses in high-throughput transcriptomic data

Bivalve mollusks thrive in environments rich in microorganisms, such as estuarine and coastal waters, and they tend to accumulate various particles, including viruses. However, the current knowledge on mollusk viruses is mainly centered on few pathogenic viruses, whereas a general view of bivalve-associated viromes is lacking. This study was designed to explore the viral abundance … Continue reading A needle in a haystack: tracing bivalve-associated viruses in high-throughput transcriptomic data

Hsp70 function and polymorphism, its implications for mollusk aquaculture: a review

Hsp70 proteins are widely found through several species, and they are considered among the most conservative proteins in nature, in both their sequence and function. They play an important role in the response mechanism to several different kinds of stress such as temperature and pathogens among others. In some species, the variations in the sequence … Continue reading Hsp70 function and polymorphism, its implications for mollusk aquaculture: a review

Comparative transcriptome analysis reveals molecular basis underlying fast growth of the selectively bred Pacific oyster, Crassostrea gigas

Fast growth is one of the most desired traits for all food animals, which affects the profitability of animal production. The Pacific oyster, Crassostrea gigas, is an important aquaculture shellfish around the world with the largest annual production. Growth of the Pacific oyster has been greatly improved by artificial selection breeding, but molecular mechanisms underlying … Continue reading Comparative transcriptome analysis reveals molecular basis underlying fast growth of the selectively bred Pacific oyster, Crassostrea gigas

An evolutionary perspective of dopachrome tautomerase enzymes in metazoans

Melanin plays a pivotal role in the cellular processes of several metazoans. The final step of the enzymically-regulated melanin biogenesis is the conversion of dopachrome into dihydroxyindoles, a reaction catalyzed by a class of enzymes called dopachrome tautomerases. We traced dopachrome tautomerase (DCT) and dopachrome converting enzyme (DCE) genes throughout metazoans and we could show … Continue reading An evolutionary perspective of dopachrome tautomerase enzymes in metazoans

Dual analysis of virus-host interactions: the case of Ostreid herpesvirus 1 and the cupped oyster Crassostrea gigas

Dual analyses of the interactions between Ostreid herpesvirus 1 (OsHV-1) and the bivalve Crassostrea gigas during infection can unveil events critical to the onset and progression of this viral disease and can provide novel strategies for mitigating and preventing oyster mortality. Among the currently used “omics” technologies, dual transcriptomics (dual RNA-seq) coupled with the analysis … Continue reading Dual analysis of virus-host interactions: the case of Ostreid herpesvirus 1 and the cupped oyster Crassostrea gigas

Farmer monitoring reveals the effect of tidal height on mortality risk of oysters during a herpesvirus outbreak

The intertidal zone is characterized by a sharp vertical gradient of environmental stress, which structures species distribution and their interactions. Few studies, however, have examined the influence of tidal height on host–pathogen interactions. Here, we investigated how the tidal height influence outbreak of the Ostreid herpesvirus type 1 (OsHV-1) affecting the Pacific oyster. A volunteer … Continue reading Farmer monitoring reveals the effect of tidal height on mortality risk of oysters during a herpesvirus outbreak