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| Stenger, Pierre-louis; Ky, Chin-long; Reisser, Celine; Cosseau, Céline; Grunau, Christoph; Mege, Mickael; Planes, Serge; Vidal-dupiol, Jeremie. |
| Today, it is common knowledge that environmental factors can change the color of many animals. Studies have shown that the molecular mechanisms underlying such modifications could involve epigenetic factors. Since 2013, the pearl oyster Pinctada margaritifera var. cumingii has become a biological model for questions on color expression and variation in Mollusca. A previous study reported color plasticity in response to water depth variation, specifically a general darkening of the nacre color at greater depth. However, the molecular mechanisms behind this plasticity are still unknown. In this paper, we investigate the possible implication of epigenetic factors controlling shell color variation through a depth variation experiment associated with a DNA... |
| Tipo: Text |
Palavras-chave: Pearl oyster; Environmental pressure; Depth; Color change; Pigmentation; DNA methylation; Methylome characterization. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00685/79667/82436.pdf |
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| Vincent Hubert, Francoise; Wacrenier, Candice; Morga, Benjamin; Lozach, Solen; Quenot, Emmanuelle; Mege, Mickael; Lecadet, Cyrielle; Gourmelon, Michele; Hervio-heath, Dominique; Le Guyader, Soizick. |
| The detection of viruses and bacteria which can pose a threat either to shellfish health or shellfish consumers remains difficult. The current detection methods rely on point sampling of water, a method that gives a snapshot of the microorganisms present at the time of sampling. In order to obtain better representativeness of the presence of these microorganisms over time, we have developed passive sampling using the adsorption capacities of polymer membranes. Our objectives here were to assess the feasibility of this methodology for field detection. Different types of membrane were deployed in coastal waters over 2 years and the microorganisms tested using qPCR were: human norovirus (NoV) genogroups (G)I and II, sapovirus, Vibrio spp. and the species... |
| Tipo: Text |
Palavras-chave: Norovirus; Ostreid herpes virus 1 μ Var; Vibrio spp; Microbial source tracking; Sea; Passive sampler; Oyster (Crassostrea gigas). |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00682/79375/81893.pdf |
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