Search results for "Nemertea"

showing 3 items of 3 documents

Neuroglobin and Other Nerve Haemoglobins

2008

The nervous system of animals requires huge amounts of metabolic energy and thus oxygen. Intracellular haemoglobins sporadically occur in glial cells and neurons of various invertebrate taxa, including Annelida, Arthropoda, Echiura, Mollusca, Nematoda and Nemertea. At least some of these respiratory proteins sustain the aerobic metabolism and thus the excitability of the nervous system. Recently, we have identified neuroglobin as an oxygen-binding protein of vertebrate neurons. The physiological role of neuroglobin, which is apparently present in much lower amounts than many invertebrate nerve haemoglobins, is less well established. Phylogenetic analyses have shown that neuroglobin is ortho…

Nervous systemNemerteabiologyNervous tissueVertebratebiology.organism_classificationCell biologyRespiratory proteinmedicine.anatomical_structureNeuroglobinbiology.animalmedicineGlobinIntracellular
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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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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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