Search results for "Chiton"

showing 4 items of 4 documents

3D reconstruction of the hemocyanin subunit dimer from the chiton Acanthochiton fascicularis.

2004

Procedures are presented for the purification of the subunit dimer from Acanthochiton fasicularis hemocyanin. Electron microscopy of negatively stained specimens revealed a uniform population of macromolecules possessing the characteristic "boat shape". A 3D reconstruction from this EM data generated a approximately 3 nm resolution model that correlates well with earlier data of the purported subunit dimer, extracted from the 3D reconstruction of the didecamer of Haliotis tuberculata hemocyanin type 1.

Dimermedicine.medical_treatmentProtein subunitPopulationGeneral Physics and AstronomyBiologylaw.inventionchemistry.chemical_compoundStructural BiologylawmedicineAnimalsGeneral Materials ScienceChitoneducationeducation.field_of_studyResolution (electron density)HemocyaninCell Biologybiology.organism_classificationNegative stainCrystallographyMicroscopy ElectronProtein SubunitschemistryMolluscaHemocyaninsElectron microscopeDimerizationMicron (Oxford, England : 1993)
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Data from: Phylogenomics of Lophotrochozoa with consideration of systematic error

2021

Phylogenomic studies have improved understanding of deep metazoan phylogeny and show promise for resolving incongruences among analyses based on limited numbers of loci. One region of the animal tree that has been especially difficult to resolve, even with phylogenomic approaches, is relationships within Lophotrochozoa (the animal clade that includes molluscs, annelids, and flatworms among others). Lack of resolution in phylogenomic analyses could be due to insufficient phylogenetic signal, limitations in taxon and/or gene sampling, or systematic error. Here, we investigated why lophotrochozoan phylogeny has been such a difficult question to answer by identifying and reducing sources of sys…

Helobdella robustaGlycera dibranchiataMytilus edulisAnnelidaEntalina tetragonaLeptochiton asellusCerebratulus marginatusLoxosomella cf. viviparaGraptacme eboreaLineus longissimusmedicine and health careClymenella torquataRuditapes philippinarumNucella lapillusHaliotis rufescenslong branch attractionPlatyzoaBarentsia gracilisPriapulus caudatusLineus ruberAlitta virenssaturationProchaetoderma californicumLife SciencesPinctada fucataSchistosoma mansoniPolyzoaCephalothrix hongkongensisRhyssoplax olivaceusLoxosoma pectinaricolaPhascolosoma agassiziiAdineta vagaDrosophila melanogasterEntoproctaBugula neritinaPhoronis vancouverensisMedicineNovocrania anomalaVillosa lienosaDaphnia pulexSagitta sp.Pectinaria gouldiiSymbion americanusNuculana pernulaSepia esculentaEnucula tenuisSolemya velumLineus lacteusTubulanus polymorphus-StruckGnathostomula paradoxaBoccardia proboscideaMacellomenia schanderiLaevipilina hyalinaTubulanus polymorphus-HalanychBryozoaPomatoceros lamarckiiSepioteuthis lessonianaParanemertes peregrinaMalacobdella grossaHemithiris psittaceaLeptochiton rugatusTrochozoaBrachionus plicatilisSpathoderma clenchiLaqueus californicusPatella vulgataLottia giganteaCrepidula fornicataPhoronidaAplysia californicaGlottidia pyramidataPhoronis psammophilaSchmidtea mediterraneaAlexandromenia crassaBrachiopodaMegadasys sp.Octopus vulgarisCapitella teletaNeomenia carinatacompositional heterogeneityNemerteaPhenacolepas pulchellaGadila tolmieiMolluscaMacrodasys sp.Crassostrea gigasPedicellina cernuaTaenia pisiformisDosidicus gigasCephalothrix linearisSpiralia
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Data from: Phylogenomics of Lophotrochozoa with consideration of systematic error

2016

Phylogenomic studies have improved understanding of deep metazoan phylogeny and show promise for resolving incongruences among analyses based on limited numbers of loci. One region of the animal tree that has been especially difficult to resolve, even with phylogenomic approaches, is relationships within Lophotrochozoa (the animal clade that includes molluscs, annelids, and flatworms among others). Lack of resolution in phylogenomic analyses could be due to insufficient phylogenetic signal, limitations in taxon and/or gene sampling, or systematic error. Here, we investigated why lophotrochozoan phylogeny has been such a difficult question to answer by identifying and reducing sources of sys…

Helobdella robustaGlycera dibranchiataMytilus edulisAnnelidaEntalina tetragonaLeptochiton asellusCerebratulus marginatusLoxosomella cf. viviparaGraptacme eboreaLineus longissimusmedicine and health careClymenella torquataRuditapes philippinarumNucella lapillusHaliotis rufescenslong branch attractionPlatyzoaBarentsia gracilisPriapulus caudatusLineus ruberAlitta virenssaturationProchaetoderma californicumPinctada fucataSchistosoma mansoniLife sciencesPolyzoaCephalothrix hongkongensisRhyssoplax olivaceusLoxosoma pectinaricolaPhascolosoma agassiziiAdineta vagaDrosophila melanogasterEntoproctaBugula neritinaPhoronis vancouverensisMedicineNovocrania anomalaVillosa lienosaDaphnia pulexSagitta sp.Pectinaria gouldiiSymbion americanusNuculana pernulaSepia esculentaEnucula tenuisSolemya velumLineus lacteusTubulanus polymorphus-StruckGnathostomula paradoxaBoccardia proboscideaMacellomenia schanderiLaevipilina hyalinaTubulanus polymorphus-HalanychBryozoaPomatoceros lamarckiiSepioteuthis lessonianaParanemertes peregrinaMalacobdella grossaHemithiris psittaceaLeptochiton rugatusTrochozoaBrachionus plicatilisSpathoderma clenchiLaqueus californicusPatella vulgataLottia giganteaCrepidula fornicataPhoronidaAplysia californicaGlottidia pyramidataPhoronis psammophilaSchmidtea mediterraneaAlexandromenia crassaBrachiopodaMegadasys sp.Octopus vulgarisCapitella teletaNeomenia carinatacompositional heterogeneityNemerteaPhenacolepas pulchellaGadila tolmieiMolluscaMacrodasys sp.Crassostrea gigasPedicellina cernuaTaenia pisiformisDosidicus gigasCephalothrix linearisSpiralia
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A new Miocene deep-sea chiton and early evidence for Teredinidae-sustained wood-fall communities

2015

Deep-sea wood-falls are important biodiversity hot spots for insights on chemosynthesis-based communities. The study of deep-sea wood-fall-related palaeocommunities from the Neogene of north Italy shed light on interesting associations from the Miocene of Torrente Cinghio (Tortonian) and of Moncasale di Casina (Langhian). The most common components of this association are typical chemosynthetic/wood-fall molluscs, such as the gastropods Homalopoma sp. and Pseudonina bellardii, the bivalves Idas sp. and shipworms, and the chiton Leptochiton lignatilis n. sp., which belongs to a genus typical of recent sunken woods in tropical waters. The new species described is compared with other fossil an…

biologyEcologyMiocenewood-fall; Polyplacophora; new species; Teredinidae boring bivalves; Miocene; Mediterranean areaOceanographybiology.organism_classificationDeep seaMediterranean areaPolyplacophoraPolyplacophoraOceanographynew speciewood-fallMediterranean areaChitonGeologyTeredinidae boring bivalve
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