Project description:The largest of the tuna species, Atlantic bluefin tuna, Thunnus thynnus (Linnaeus, 1758), inhabits the North Atlantic Ocean and the Mediterranean Sea and is considered to be an endangered species, largely through overfishing. Thus, the development of aquaculture practices independent of wild resources can provide an important contribution towards ensuring security and sustainability of this species in the longer-term. In order to provide a resource for ongoing studies, we have used 454 pyrosequencing technology to sequence a mixed-tissue normalized cDNA library, derived from adult individuals. Transcript sequences were used to develop a novel 15K Agilent oligo microarray for T. thynnus and comparative tissue gene expression profiles were inferred for gill, heart, liver, ovaries and testes.

2015-08-10 | E-MTAB-3412 | biostudies-arrayexpress

Leucogyrophana mollusca

Project description:Leucogyrophana mollusca overview

| PRJNA251479 | ENA

Mollusca sp.

Project description:Mollusca sp. overview

| PRJNA1053482 | ENA

Differential transcriptomic responses of Biomphalaria glabrata to bacteria and metazoan parasites

Project description:Differential transcriptomic responses of Biomphalaria glabrata (Gastropoda, Mollusca) to bacteria and metazoan parasites Schistosoma mansoni and Echinostoma paraensei (Digenea, Platyhelminthes). Transcriptional profiling of Biomphalaria glabrata comparing control uninfected M-line B. glabrata with five experimental groups. The experimental groups are: wounded but not infected M-line, Escherichia coli infected, Micrococcus luteus infected, Echinostoma paraensei infected and Schistosoma mansoni infected at 12 hours time point post infection.

2009-09-01 | GSE16596 | GEO

First confirmed record of Trichobilharzia franki Muller & Kimmig, 1994, from Radix auricularia (Linnaeus, 1758) for Austria.

Project description:Avian schistosomes are of medical and veterinary importance as they are responsible for the annually occurring cercarial dermatitis outbreaks. For Austria, so far, only Trichobilharzia szidati Neuhaus 1952 was confirmed on species level as causative agent of cercarial dermatitis. Here we present the first record of Trichobilharzia franki Müller & Kimmig 1994 in Austria. The species was detected during a survey of digenean trematodes in Upper Austrian water bodies. Furthermore, we provide DNA barcodes of T. franki as well as measurements of several parasite individuals to indicate the intraspecific diversity. We also recommend the usage of an alternative primer pair, since the "standard COI primer pair" previously used for Schistosomatidae amplified an aberrant fragment in the sequence of T. franki. Overall, our study shows how limited our knowledge about occurrence and distribution of avian schistosomes in Austria is and how important it is to acquire such a knowledge to estimate ecological and epidemiological risks in the future.

| S-EPMC7704445 | biostudies-literature

Three new species of <i>Nautilus</i> Linnaeus, 1758 (Mollusca, Cephalopoda) from the Coral Sea and South Pacific.

Project description:Nautiloids are a charismatic group of marine molluscs best known for their rich fossil record, but today they are restricted to a handful of species in the family Nautilidae from around the Coral Triangle. Recent genetic work has shown a disconnect between traditional species, originally defined on shell characters, but now with new findings from genetic structure of various Nautilus populations. Here, three new species of Nautilus from the Coral Sea and South Pacific region are formally named using observations of shell and soft anatomical data augmented by genetic information: N.samoaensissp. nov. (from American Samoa), N.vitiensissp. nov. (from Fiji), and N.vanuatuensissp. nov. (from Vanuatu). The formal naming of these three species is timely considering the new and recently published information on genetic structure, geographic occurrence, and new morphological characters, including color patterns of shell and soft part morphology of hood, and will aid in managing these possibly endangered animals. As recently proposed from genetic analyses, there is a strong geographic component affecting taxonomy, with the new species coming from larger island groups that are separated by at least 200 km of deep water (greater than 800 m) from other Nautilus populations and potential habitats. Nautilid shells implode at depths greater than 800 m and depth therefore acts as a biogeographical barrier separating these species. This isolation, coupled with the unique, endemic species in each locale, are important considerations for the conservation management of the extant Nautilus species and populations.

| S-EPMC10209263 | biostudies-literature

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