Germain Chevignon
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View article: Dynamics of the transcriptomic landscape of OsHV-1 replication in haemocytes of the Pacific oyster (Magallana gigas)
Dynamics of the transcriptomic landscape of OsHV-1 replication in haemocytes of the Pacific oyster (Magallana gigas) Open
Since the 1990s, the Pacific oyster ( Magallana gigas ) has experienced repeated mortality events associated with Ostreid herpesvirus 1 (OsHV-1). Although the virus has been genomically characterised, its replication cycle and its interact…
View article: Dynamic of the transcriptomic landscape of OsHV-1 replication in haemocytes of Pacific oyster
Dynamic of the transcriptomic landscape of OsHV-1 replication in haemocytes of Pacific oyster Open
Since the 1990s, the Pacific oyster ( Magallana gigas ) has experienced repeated mortality events associated with Ostreid herpesvirus 1 (OsHV-1). Although the virus has been genomically characterised, its replication cycle and its interact…
View article: Experimentally mimicking long term infections of <i>Magallana gigas</i> with the OsHV-1 virus reveals evolution through positive selection
Experimentally mimicking long term infections of <i>Magallana gigas</i> with the OsHV-1 virus reveals evolution through positive selection Open
Ostreid herpesvirus 1 (OsHV-1) pose a significant threat to the global oyster farming industry, causing substantial economic losses due to mortality outbreaks. While OsHV-1 primarily affects the Pacific oyster Magallana gigas , it has also…
View article: Evaluation of long-read sequencing for Ostreid herpesvirus type 1 genome characterization from <i>Magallana gigas</i> infected tissues
Evaluation of long-read sequencing for Ostreid herpesvirus type 1 genome characterization from <i>Magallana gigas</i> infected tissues Open
Since the 1990s, the Pacific oyster Magallana gigas has faced significant mortality, which has been associated with the detection of the Ostreid Herpesvirus type 1 (OsHV-1). Due to the complex genomic architecture and the presence of multi…
View article: MoPSeq-DB: a user-friendly web application for genomic data management and analysis of marine mollusc pathogens
MoPSeq-DB: a user-friendly web application for genomic data management and analysis of marine mollusc pathogens Open
Sequencing technologies continue to evolve, providing novel opportunities for disease surveillance and control. These advancements are crucial for diagnosing diseases and identifying genetically distinct variants with diverse host reservoi…
View article: Evaluation of long-read sequencing for Ostreid herpesvirus type 1 genome characterization from<i>Magallana gigas</i>infected tissues
Evaluation of long-read sequencing for Ostreid herpesvirus type 1 genome characterization from<i>Magallana gigas</i>infected tissues Open
2 Abstract Since the 1990s, the Pacific oyster Magallana gigas has faced significant mortality, which has been associated with the detection of the Ostreid Herpesvirus type 1 (OsHV-1). Due to the complex genomic architecture and the presen…
View article: Mobile elements create strain‐level variation in the services conferred by an aphid symbiont
Mobile elements create strain‐level variation in the services conferred by an aphid symbiont Open
Heritable, facultative symbionts are common in arthropods, often functioning in host defence. Despite moderately reduced genomes, facultative symbionts retain evolutionary potential through mobile genetic elements (MGEs). MGEs form the pri…
View article: Phylogenomic evidence for host specialization and genetic divergence in OsHV-1 infecting <i>Magallana gigas</i> and <i>Ostrea edulis</i>
Phylogenomic evidence for host specialization and genetic divergence in OsHV-1 infecting <i>Magallana gigas</i> and <i>Ostrea edulis</i> Open
Cross-species transmission is a major driver of disease emergence in humans and animals. The Ostreavirus ostreidmalaco1 (OsHV-1) is mainly associated with mortality in the Pacific oyster Magallana gigas , but has also been found in other m…
View article: An aphid symbiont confers protection against a specialized <scp>RNA</scp> virus, another increases vulnerability to the same pathogen
An aphid symbiont confers protection against a specialized <span>RNA</span> virus, another increases vulnerability to the same pathogen Open
Insects often harbour heritable symbionts that provide defence against specialized natural enemies, yet little is known about symbiont protection when hosts face simultaneous threats. In pea aphids ( Acyrthosiphon pisum ), the facultative …
View article: Evaluation of tangential flow filtration coupled to long-read sequencing for ostreid herpesvirus type 1 genome assembly
Evaluation of tangential flow filtration coupled to long-read sequencing for ostreid herpesvirus type 1 genome assembly Open
Whole-genome sequencing is widely used to better understand the transmission dynamics, the evolution and the emergence of new variants of viral pathogens. This can bring crucial information to stakeholders for disease management. Unfortuna…
View article: De Novo Transcriptome Assembly and Analysis of the Flat Oyster Pathogenic Protozoa Bonamia Ostreae
De Novo Transcriptome Assembly and Analysis of the Flat Oyster Pathogenic Protozoa Bonamia Ostreae Open
The flat oyster Ostrea edulis is an oyster species native to Europe. It has declined to functional extinction in many areas of the NE Atlantic for several decades. Factors explaining this decline include over-exploitation of natural popula…
View article: An aphid symbiont confers protection against a specialized RNA virus, another increases vulnerability to the same pathogen
An aphid symbiont confers protection against a specialized RNA virus, another increases vulnerability to the same pathogen Open
Insects often harbor heritable symbionts that provide defense against specialized natural enemies, yet little is known about symbiont protection when hosts face simultaneous threats. In pea aphids (Acyrthosiphon pisum), the facultative end…
View article: Genomic Diversity of the Ostreid Herpesvirus Type 1 Across Time and Location and Among Host Species
Genomic Diversity of the Ostreid Herpesvirus Type 1 Across Time and Location and Among Host Species Open
The mechanisms underlying virus emergence are rarely well understood, making the appearance of outbreaks largely unpredictable. This is particularly true for pathogens with low per-site mutation rates, such as DNA viruses, that do not exhi…
View article: Dual RNAseq analyses at soma and germline levels reveal evolutionary innovations in the elephantiasis-agent Brugia malayi, and adaptation of its Wolbachia endosymbionts
Dual RNAseq analyses at soma and germline levels reveal evolutionary innovations in the elephantiasis-agent Brugia malayi, and adaptation of its Wolbachia endosymbionts Open
Brugia malayi is a human filarial nematode responsible for elephantiasis, a debilitating condition that is part of a broader spectrum of diseases called filariasis, including lymphatic filariasis and river blindness. Almost all filarial ne…
View article: De novo transcriptome assembly and analysis of the Flat Oyster pathogenic protozoa Bonamia ostreae
De novo transcriptome assembly and analysis of the Flat Oyster pathogenic protozoa Bonamia ostreae Open
Here are the supplementary materials related to the study entitled "De novo transcriptome assembly and analysis of the Flat Oyster pathogenic protozoa Bonamia ostreae".Raw sequencing data are available under accession PRJNA731671 at NCBI.
View article: De novo transcriptome assembly and analysis of the Flat Oyster pathogenic protozoa Bonamia ostreae
De novo transcriptome assembly and analysis of the Flat Oyster pathogenic protozoa Bonamia ostreae Open
Here are the intermediate files related to variant calling of the B. ostreae rRNA operon.
View article: Evolutionary genomics of phage APSE: associated data
Evolutionary genomics of phage APSE: associated data Open
Data associated with "Evolutionary genomics of APSE: a tailed phage that lysogenically converts bacterium Hamiltonella defensa into a heritable protective symbiont of aphids." Boyd BM, Chevignon G, Patel V, Oliver KM, Strand MR.
View article: Cultivation-assisted genome of Candidatus Fukatsuia symbiotica; the enigmatic ‘X-type’ symbiont of aphids
Cultivation-assisted genome of Candidatus Fukatsuia symbiotica; the enigmatic ‘X-type’ symbiont of aphids Open
Heritable symbionts are common in terrestrial arthropods and often provide beneficial services to hosts. Unlike obligate, nutritional symbionts that largely persist under strict host control within specialized host cells, heritable faculta…
View article: Cotesia congregata Bracovirus Circles Encoding <i>PTP</i> and Ankyrin Genes Integrate into the DNA of Parasitized Manduca sexta Hemocytes
Cotesia congregata Bracovirus Circles Encoding <i>PTP</i> and Ankyrin Genes Integrate into the DNA of Parasitized Manduca sexta Hemocytes Open
The identification of a specific and efficient integration mechanism shared by several bracovirus species opens the question of its role in braconid parasitoid wasp parasitism success. Indeed, results obtained here show massive integration…
View article: Culture-Facilitated Comparative Genomics of the Facultative Symbiont Hamiltonella defensa
Culture-Facilitated Comparative Genomics of the Facultative Symbiont Hamiltonella defensa Open
Many insects host facultative, bacterial symbionts that confer conditional fitness benefits to their hosts. Hamiltonella defensa is a common facultative symbiont of aphids that provides protection against parasitoid wasps. Protection level…
View article: Culture of an aphid heritable symbiont demonstrates its direct role in defence against parasitoids
Culture of an aphid heritable symbiont demonstrates its direct role in defence against parasitoids Open
Heritable symbionts are common in insects with many contributing to host defence. Hamiltonella defensa is a facultative, bacterial symbiont of the pea aphid, Acyrthosiphon pisum that provides protection against the endoparasitoid wasp Aphi…
View article: Supplementary material from "Culture of an aphid heritable symbiont demonstrates its direct role in defence against parasitoids"
Supplementary material from "Culture of an aphid heritable symbiont demonstrates its direct role in defence against parasitoids" Open
Heritable symbionts are common in insects with many contributing to host defence. Hamiltonella defensa is a facultative, bacterial symbiont of the pea aphid, Acyrthosiphon pisum that provides protection against the endoparasitoid wasp Aphi…
View article: Merged supplementary file from Culture of an aphid heritable symbiont demonstrates its direct role in defence against parasitoids
Merged supplementary file from Culture of an aphid heritable symbiont demonstrates its direct role in defence against parasitoids Open
Merged supplementary files consists of Table S1, S2, Figure S1, S2, S3, S4, and Supplemental References
View article: Multifaceted biological insights from a draft genome sequence of the tobacco hornworm moth, Manduca sexta
Multifaceted biological insights from a draft genome sequence of the tobacco hornworm moth, Manduca sexta Open
Manduca sexta, known as the tobacco hornworm or Carolina sphinx moth, is a lepidopteran insect that is used extensively as a model system for research in insect biochemistry, physiology, neurobiology, development, and immunity. One importa…