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670 results for “Molluscs”
The shellome of the crocus clam Tridacna crocea emphasizes essential components of mollusc shell biomineralization
<p class="FirstParagraph">Molluscan shells are among the most fascinating research objects because of their diverse morphologies and textures. The formation of these delicate biomineralized structures is a matrix-mediated process. A question that arises is what are the essential components required to build these exoskeletons. In order to understand the molecular mechanisms of molluscan shell formation, it is crucial to identify organic macromolecules in different shells from diverse taxa. In the case of bivalves, however, taxon sampling in previous shell proteomics studies are biased and focus exclusively on representatives of the class Pteriomorphia such as pearl oysters, edible oysters and mussels. In this study, we have characterized the shell organic matrix from the crocus clam, <i>Tridacna crocea</i>, (Heterodonta) using various biochemical techniques, including SDS-PAGE, FT-IR, monosaccharide analysis, and enzyme-linked lectin assay (ELLA). Furthermore, we have identified a number of shell matrix proteins (SMPs) using a comprehensive proteomics approach combined to RNA-seq. The biochemical studies confirmed the presence of proteins, polysaccharides, and sulphates in the <i>T. crocea</i> shell organic matrix. Proteomics analysis revealed that the majority of the <i>T. crocea</i> SMPs are novel and dissimilar to known SMPs identified from the other bivalve species. Meanwhile, the SMP repertoire of the crocus clam also includes proteins with conserved functional domains such as chitin-binding domain, VWA domain, and protease inhibitor domain. We also identified BMSP (Blue Mussel Shell Protein, originally reported from <i>Mytilus</i>), which is widely distributed among molluscan shell matrix proteins. <i>Tridacna</i> SMPs also include low-complexity regions or LCRs that are absent in the other molluscan genomes, indicating that these genes may have evolved in specific lineage. These results highlight the diversity of the organic molecules - in particular proteins - that are essential for molluscan shell formation.</p>
FIGURE 1 in The freshwater molluscs of Serbia: Annotated checklist with remarks on distribution and protection status
FIGURE 1. Hydrological map of Serbia with the main catchments and ecoregions (ER). Main catchment areas (adapted from RHMS 2021): Danube—Danube River with its smaller tributaries (Mlava River, Pek River etc); Tisza—Tisza River with its tributaries (Plazović River, Zlatica River etc); Sava—Sava River with its smaller tributaries (Bosut River etc); V. Morava—Ve- lika Morava River with its tributaries (Resava River, Lepenica River etc); Z. Morava—Zapadna Morava River with its tribu- taries (Ibar River, Rasina River etc); J. Morava—Južna Morava River with its tributaries (Toplica River. Vlasina River etc); Nišava—Nišava River with its tributaries (Jerma River, Temštica River etc); Kolubara—Kolubara River with its tributaries (Gradac River, Tamnava River etc); Timok—Timok River hydrological network (Veliki Timok, Crni Timok and Beli Timok Rivers with tributaries); Drina—Drina River with its tributaries (Lim River, Jadar River etc). Ecoregions (ER) delineation as in Paunović (2007) and Paunović et al. (2012).
Figure 1 in First records of the Red Sea alien mollusc Haminoea cyanomarginata (Gastropoda: Heterobranchia: Cephalaspidea) in the Western Mediterranean
Figure 1. Underwater pictures of Haminoea cyanomarginata taken at 27 m depth in Illa del Toro, Calvià, Mallorca, Balearic Islands. (a) Dorsal view; (b) lateral view.
Figure 2 in First records of the Red Sea alien mollusc Haminoea cyanomarginata (Gastropoda: Heterobranchia: Cephalaspidea) in the Western Mediterranean
Figure 2. Distribution of Haminoea cyanomarginata based on bibliographic data and this study. (a) General view of the Red and Mediterranean seas showing all documented occurrences including the type location (red star) and the time periods of 2001–2006 (orange dots), 2007–2012 (green dots), and 2013–2017 (purple dots). (b) Close-up of the Arabian Peninsula showing the occurrences in the Red Sea and Oman. (c) Close-up showing the new records from Mallorca in the Balearic Islands.
Figure 4 in Community properties of benthic molluscs as indicators of environmental stress induced by organic enrichment
Figure 4. MDS plots of Functional Feeding Groups (FFG) where mean abundance of each group is superimposed.
Figure 3 in Community properties of benthic molluscs as indicators of environmental stress induced by organic enrichment
Figure 3. MDS plot (a) and cluster analysis (b) of species abundances highlighting three main groups of areas.
Figure 2 in Community properties of benthic molluscs as indicators of environmental stress induced by organic enrichment
Figure 2. Probability funnels of diversity indices Δ+ (a) and Λ+ (b) for all sampling stations and seasons in the study area.
Figure 1. A in Community properties of benthic molluscs as indicators of environmental stress induced by organic enrichment
Figure 1. A map of the island of Lesvos indicating Gera Gulf, the study area (Palioloutro) where the fish farm unit is located and the sampling sites.
FIG. 6 in Epibiontic mollusc communities on Pinna nobilis L. (Bivalvia, Mollusca)
FIG. 6. Trophic structure of the epibiontic mollusc community in each P. nobilis size class. Sh, suspension feeder herbivores; Gh, grazer herbivores; O, omnivores; C, carnivores; P, parasites.
FIG. 7 in Epibiontic mollusc communities on Pinna nobilis L. (Bivalvia, Mollusca)
FIG. 7. Biocenotic composition of epibiontic mollusc community (entire sample). lre, species with a wide ecological distribution; sspr, species without a clearly deŽned ecological role; AP, exclusive or predominant species in the photophilic algae biocenosis; AP-HP, predominant species in both photophilic algae and Posidonia meadow biocoenoses; SFBC/SVMC, exclusive or predominant species in Žne well-sorted sands, together with muddy sands in sheltered areas biocoenoses; SGCF, exclusive or predominant species in coarse sands and Žne gravel with bottom currents; DC, exclusive or predominant species in coastal detritic biocoenoses.
FIG. 8 in Epibiontic mollusc communities on Pinna nobilis L. (Bivalvia, Mollusca)
FIG. 8. Biocenotic composition of epibiontic mollusc community (for each size classes). lre, species with a wide ecological distribution; sspr, species without a clearly deŽned ecological role; AP, exclusive or predominant species in the photophilic algae biocenosis; AP-HP, predominant species in both photophilic algae and Posidonia meadow biocoenoses; SFBC/SVMC, exclusive or predominant species in Žne well-sorted sands, together with muddy sands in sheltered areas biocoenoses; SGCF, exclusive or predominant species in coarse sands and Žne gravel with bottom currents; DC, exclusive or predominant species in coastal detritic biocoenoses.
Data from: Effects of brooding and broadcasting reproductive modes on the population genetic structure of two Antarctic gastropod molluscs
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Data from: Seascape genomics reveals adaptive divergence in a connected and commercially important mollusc, the greenlip abalone (Haliotis laevigata), along a longitudinal environmental gradient
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Raw data and alignments for: Application of palaeogenetic techniques to historic mollusc shells reveals phylogeographic structure in a New Zealand abalone
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The shellome of the crocus clam Tridacna crocea emphasizes essential components of mollusc shell biomineralization
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Data from: Ontogeny, morphology and taxonomy of the soft-bodied Cambrian ‘mollusc’ Wiwaxia
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Convergent evolution of barnacles and molluscs sheds lights in origin and diversification of calcareous shell and sessile lifestyle
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Data from: Coastal acidification impacts on shell mineral structure of bivalve molluscs
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Data from: Local and regional scale habitat heterogeneity contribute to genetic adaptation in a commercially important marine mollusc (Haliotis rubra) from southeastern Australia
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Data from: Contrasting patterns of population connectivity between regions in a commercially important mollusc Haliotis rubra: integrating population genetics, genomics and marine LiDAR data
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
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