GEO DataSets

(Submitter supplied) Contaminants of Emerging Concern (CECs) are a class of chemicals that can spread throughout the environment causing adverse biological and ecological effects. Through the different classes of CECs, the occurrence of pharmaceutical drugs such as natural and synthetic estrogens, is well documented in the aquatic environment. In this study mussels (Mytilus galloprovincialis), chosen as model organism, were exposed to the synthetic hormone 17 α-Ethinylestradiol (EE2), the primary component in contraceptive pills. more...

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by high throughput sequencing

Platform:

GPL30930

23 Samples

Download data: TXT

(Submitter supplied) The present work sought first to identify the impacts of increasing water temperatures on M. galloprovincialis and M. edulis pure larvae and their hybrids on embryo larval development. Second, based on a recently developed targeted Mussel’s microarray, we investigated the transcriptional response to elucidate possible differences in heat stress-induced gene expression between these species.

Organism:

Mytilus californianus; Mytilus edulis x Mytilus galloprovincialis; Magallana gigas; Mytilus edulis; Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL22172

12 Samples

Download data: GPR

(Submitter supplied) Gill transcriptome of fast- and slow-growing mussels reared under continuous food supply was recently analysed in order to ascertain the differential gene expression underlying interindividual differences in growth rate. The present study aims to analyse the gene expression differences between fast- and slow-growing mussels submitted to an air exposure of 8 hours a day during the rearing period. Transcriptome will be also compared with their continuously submerged counterparts in order to analyse the effect of air exposure on the gene expression of fast- and slow-growing individuals.

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL25650

8 Samples

Download data: TXT

(Submitter supplied) Development of a new low density stress response microarray to evaluate biological effects of contaminants in Mytilus sp: laboratory validation. In this work, we investigated the health status of mussels caged in three sites of the Sardinian coastlines characterized by different levels of contamination (Fornelli “F” considered as reference site, Cala-Real “CR” and PortoTores “PT”). A new low density oligonucleotide microarray platform was used to investigate the gene expression regulation in the studied sites. more...

Organism:

Mytilus edulis; Mytilus californianus; Magallana gigas; Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL22172

8 Samples

Download data: GPR

(Submitter supplied) The present study tried to assess transcription level effects in the digestive gland of female mussels dietarily exposed to Ag NPs and to compare such transcription profiles in two different seasons, autumn and spring, since mussels are expected to be at a different gamete developmental stage (early and advanced gametogenic stage, respectively).

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL25964

60 Samples

Download data: TXT

(Submitter supplied) Endogenously determined inter-individual differences in growth rate of bivalve molluscs have been widely analyzed at different organizational levels. Most studies have focused on the characterization of the physiological differences between fast (F) and slow (S) growing individuals. Although several genes have been described to be up regulated on fast growing individuals, the molecular basis underlying the mechanisms at the origin of growth variation is still poorly understood. more...

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL25650

16 Samples

Download data: TXT

(Submitter supplied) Mediterranean mussels are a worldwide spread bivalve species with extraordinary biological success. One of the reasons of this success could be the reproduction strategy of bivalves, characterized by the presence of trochophore larvae. Larval development in bivalves has been a topic of raising interest in the scientific community but it deserves much more attention. The principal objective of this work was to study the transcriptomic profile of the ontogeny of M. more...

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL18667

22 Samples

Download data: TXT

(Submitter supplied) Pharmaceutical compounds are emerging contaminants in aquatic environment due to their massive use (human and veterinary medicines, agriculture and aquaculture) and a limited removal by waste water treatment plants (WWTPs). In this work, a representative determination of ecotoxicological potential of Ketoprofen s was studied in the sensitive bioindicator marine organism M. Galloprovincialis. Mussels were exposed, under regulated laboratory conditions, to Ketoprofen (KET) a, dosed alone at the realistic environmental concentration of 2.5µg/L for 14, 30 and 60 days. more...

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL18667

24 Samples

Download data: TXT

(Submitter supplied) Development of a new low density stress response microarray to evaluate biological effects of contaminants in Mytilus sp: laboratory validation. Background: Despite the increasing use of mussels in environmental monitoring, their genome and gene functions remain weakly explored. Recently several cDNA microarrays were proposed in Mytilussp, however partial putatively identified transcripts are provided rendering very difficult the generation of robust transcriptional responses in term of pathwaysidentification. more...

Organism:

Mytilus galloprovincialis; Magallana gigas; Mytilus californianus; Mytilus edulis

Type:

Expression profiling by array

Platform:

GPL22172

24 Samples

Download data: GPR

(Submitter supplied) Pharmaceutical compounds are emerging contaminants in aquatic environment due to their massive use (human and veterinary medicines, agriculture and aquaculture) and a limited removal by waste water treatment plants (WWTPs). In this work, a representative determination of ecotoxicological potential of two different NSAIDs compounds was studied in the sensitive bioindicator marine organism M. Galloprovincialis. more...

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL18667

12 Samples

Download data: TXT

(Submitter supplied) Differential expression analysis of digestive gland and gill tissues of mussels (Mytilus galloprovincialis) exposed to dinoflagellates (Prorocentrum lima), producers of okadaic acid, at a concentration of 200 cells/ml for one day. Each sample consists in total RNA was extracted from pooled tissues of 5 individuals.

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL20893

8 Samples

Download data: TXT

(Submitter supplied) Transcriptional profiling of the digestive gland tissue of female mussel Mytilus galloprovincialis exposed to TCDD, n-TiO2 and their binary mixture Background: Exposure of marine organisms to pollutant mixtures may affect the pattern of contaminant uptake/bioaccumulation, as well as of gene expression in the tissues. Despite the growing concern over the potential biological impact of nanoparticles (NPs) in the aquatic environment, little is known about their interactions with other pollutants.We have recently shown that in the marine mussel Mytilus galloprovincialis exposure to n-TiO2, one of the most widespread type of NPs in use, in combination with 2,3,7,8-TCDD, chosen as model organic xenobiotic, can exert antagonistic or synergistic effects on different biomarkers from the molecular to the tissue level, depending on cell/tissue and type of measured response. more...

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL10269

12 Samples

Download data: GPR

(Submitter supplied) Microplastics represent a growing environmental concern for the oceans due to their potential capability to adsorb different classes of pollutants, thus representing a still unexplored source of exposure for aquatic organisms. In this study polystyrene (PS) microplastics were characterized for their capability to adsorb pyrene (PYR) as model compound for polycyclic aromatic hydrocarbons, and transfer this chemical to filter feeding mussels Mytilus galloprovincialis. more...

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL18667

11 Samples

Download data: TXT

(Submitter supplied) We used a cDNA microarray previously defined for the marine sentinel organism Mytilus galloprovincialis (MytArray1.0) to evaluate the effects of nanomolar doses of combined metal salts (50, 100 and 200 nM mixtures of Cd, Cu and Hg) after 48 hours of mussel exposure. Pointing to the mussel gills, first target of toxic water contaminants and actively proliferating tissue, we found significant dose-related increases of cells with micronuclei and other nuclear abnormalities in the treated mussels, with differences in the bioconcentration of the three metals determined in the mussel pulp by atomic absorption spectrometry. more...

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL1799

18 Samples

Download data: TXT

(Submitter supplied) Transcriptional profiling of the digestive gland tissue of female mussel Mytilus galloprovincialis exposed to nickel along with a temperature gradient Background: The exposure of marine organisms to stressing agents may affect the level and pattern of gene expression. Although many studies have examined the ecological effects of heat stress on mussels, little is known about the physiological mechanisms that might be affected by co-exposure to heat stress and environmental contaminants such as nickel (Ni). more...

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL10269

16 Samples

Download data: GPR

(Submitter supplied) Transcriptional profiling of the digestive gland tissue of female mussel Mytilus galloprovincialis exposed to copper along with a temperature gradient Background: Global warming is a major factor that may affect biological organization, especially in marine ecosystems and in coastal areas that are particularly subject to anthropogenic pollution. We evaluated the effects of simultaneous changes in temperature and copper concentrations on lysosomal membrane stability of the blue mussel Mytilus galloprovincialis (Lam.). more...

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL10269

36 Samples

Download data: TXT

(Submitter supplied) Transcriptional profiling of mussel (Mytilus galloprovincialis) digestive gland tissue comparing control tissue with tissue obtained from animals exposed to sublethal amounts of Chlorpyrifos, animals injected into the posterior adductor muscle with 25 pico-moles 17β-estradiol (E2) and animals pre-exposed for three days to the pesticide and further injected with E2. Background: Many pesticides have been shown to act as endocrine disrupters. more...

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL10269

12 Samples

Download data: TXT

(Submitter supplied) Transcriptional profiling of mussel (Mytilus galloprovincialis) digestive gland tissue comparing control tissue with tissue obtained from animals exposed for four days to sublethal amounts of Nickel, Chlorpyrifos, or their mixture. Background: Mixtures of chemicals present in aquatic environments may elicit toxicity due to additive or synergistic effects among the constituents or ‘vice versa’ the adverse outcome may be reduced by antagonistic interactions. more...

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by array

Platforms:

GPL10269 GPL1799

17 Samples

Download data: GPR

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL10269

88 Samples

Download data: TXT

(Submitter supplied) Direct comparison of the transcriptional patterns between male and female in the digestive gland of a natural population of the marine mussel Mytilus galloprovincialis sampled in the Bizerta Lagoon, Tunisia, across November 2007 -February March 2008 (four stages, winter peak). Background: Seasonal environmental changes may affect the physiology of Mytilus galloprovincialis (Lam.), an intertidal filter-feeder bivalve occurring commonly in Mediterranean and Atlantic coastal areas. more...

Organism:

Mytilus galloprovincialis

Type:

Expression profiling by array

Platform:

GPL10269

16 Samples

Download data: TXT