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Çinar M.e. - One of the best experts on this subject based on the ideXlab platform.
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Checklist of the phyla Platyhelminthes, Xenacoelomorpha, Nematoda, Acanthocephala, Myxozoa, Tardigrada, Cephalorhyncha, Nemertea, Echiura, Brachiopoda, Phoronida, Chaetognatha, and chordata (Tunicata, Cephalochordata, and hemichordata) from the coast
'The Scientific and Technological Research Council of Turkey', 2014Co-Authors: Çinar M.e.Abstract:In this paper, the current status of the species diversity of 13 phyla, namely Platyhelminthes, Xenacoelomorpha, Nematoda, Acanthocephala, Myxozoa, Tardigrada, Cephalorhyncha, Nemertea, Echiura, Brachiopoda, Phoronida, Chaetognatha, and Chordata (invertebrates, only Tunicata, Cephalochordata, and Hemichordata) along the coasts of Turkey is reviewed. Platyhelminthes was represented by 186 species, Chordata by 64 species, Nemertea by 26 species, Nematoda by 20 species, Xenacoelomorpha by 11 species, Chaetognatha by 10 species, Acanthocephala by 9 species, Brachiopoda and Phoronida by 4 species, Myxozoa and Tradigrada by 2 species, and Cephalorhyncha and Echiura by 1 species. Two platyhelminth (Planocera cf. graf and Prostheceraeus vittatus), 2 nemertean (Drepanogigas albolineatus and Tubulanus superbus), 1 phoronid (Phoronis australis), and 2 ascidian (Polyclinella azemai and Ciona roulei) species are being newly reported for the first time from the coasts of Turkey. Four tunicate (Symplegma brakenhielmi, Microcosmus exasperatus, Herdmania momus, and Phallusia nigra) and 1 chaetognath (Ferosagitta galerita) species were classifed as alien species in the region. © 2014 Turkiye Klinikleri Journal of Medical Sciences. All rights reserved
Melih Ertan Cinar - One of the best experts on this subject based on the ideXlab platform.
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checklist of the phyla Platyhelminthes xenacoelomorpha nematoda acanthocephala myxozoa tardigrada cephalorhyncha nemertea echiura brachiopoda phoronida chaetognatha and chordata tunicata cephalochordata and hemichordata from the coasts of turkey
Turkish Journal of Zoology, 2014Co-Authors: Melih Ertan CinarAbstract:In this paper, the current status of the species diversity of 13 phyla, namely Platyhelminthes, Xenacoelomorpha, Nematoda, Acanthocephala, Myxozoa, Tardigrada, Cephalorhyncha, Nemertea, Echiura, Brachiopoda, Phoronida, Chaetognatha, and Chordata (invertebrates, only Tunicata, Cephalochordata, and Hemichordata) along the coasts of Turkey is reviewed. Platyhelminthes was represented by 186 species, Chordata by 64 species, Nemertea by 26 species, Nematoda by 20 species, Xenacoelomorpha by 11 species, Chaetognatha by 10 species, Acanthocephala by 9 species, Brachiopoda and Phoronida by 4 species, Myxozoa and Tradigrada by 2 species, and Cephalorhyncha and Echiura by 1 species. Two platyhelminth (Planocera cf. graffi and Prostheceraeus vittatus), 2 nemertean (Drepanogigas albolineatus and Tubulanus superbus), 1 phoronid (Phoronis australis), and 2 ascidian (Polyclinella azemai and Ciona roulei) species are being newly reported for the first time from the coasts of Turkey. Four tunicate (Symplegma brakenhielmi, Microcosmus exasperatus, Herdmania momus, and Phallusia nigra) and 1 chaetognath (Ferosagitta galerita) species were classified as alien species in the region.
Jeffrey L Boore - One of the best experts on this subject based on the ideXlab platform.
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mitochondrial genome data support the basal position of acoelomorpha and the polyphyly of the Platyhelminthes
Molecular Phylogenetics and Evolution, 2004Co-Authors: Inaki Ruiztrillo, Marta Riutort, Matthew H Fourcade, Jeffrey L BooreAbstract:Abstract We determined 9.7, 5.2, and 6.8 kb, respectively, of the mitochondrial genomes of the acoel Paratomella rubra, the nemertodermatid Nemertoderma westbladi, and the free-living rhabditophoran platyhelminth Microstomum lineare. The identified gene arrangements are unique among metazoans, including each other, sharing no more than one or two single gene boundaries with a few distantly related taxa. Phylogenetic analysis of the amino acid sequences inferred from the sequenced genes confirms that the acoelomorph flatworms (acoels + nemertodermatids) do not belong to the Platyhelminthes, but are, instead, the most basal extant bilaterian group. Therefore, the Platyhelminthes, as traditionally constituted, is a polyphyletic phylum.
Gonzalo Giribet - One of the best experts on this subject based on the ideXlab platform.
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inclusive taxon sampling suggests a single stepwise origin of ectolecithality in Platyhelminthes
Biological Journal of The Linnean Society, 2014Co-Authors: Christopher E Laumer, Gonzalo GiribetAbstract:Ectolecithality is a form of oogenesis unique within Metazoa but common in Platyhelminthes, in which almost yolkless oocytes and tightly associated yolk cells are deposited together in egg capsules. Despite profound impacts on the embryogenesis and morphology of its beneficiaries, the origins of this developmental phenomenon remain obscure. Traditionally, all ectolecithal flatworms were grouped in a clade called Neoophora. However, there are also morphological arguments for multiple origins of ectolecithality and, to date, Neoophora has seen little support from molecular phylogenetic research, largely as a result of gaps in taxon sampling. Accordingly, we present a molecular phylogeny focused on resolving the deepest divergences among the free-living Platyhelminthes. Species were chosen to completely span the diversity of all major endo- and ectolecithal clades, including several aberrant species of uncertain systematic affinity and, additionally, a thorough sampling of the ‘lecithoepitheliate’ higher taxa Prorhynchida and Gnosonesimida, respectively, under- and unrepresented in phylogenies to date. Our analyses validate the monophyly of all classical higher platyhelminth taxa, and also resolve a clade possessing distinct yolk-cell and oocyte generating organs (which we name Euneoophora new taxon). Furthermore, implied-weights parsimony and Bayesian mixture model analyses suggest common ancestry of this clade with the lecithoepitheliates, implying that these taxa may retain a primitive form of ectolecithality. This topology thus corroborates the classical hypothesis of homology between yolk cells and oocytes in all Neoophora, and should serve to guide future evolutionary research on this unique developmental innovation in Platyhelminthes. © 2014 The Linnean Society of London, Biological Journal of the Linnean Society, 2014, 111, 570–588.
Jean-lou Justine - One of the best experts on this subject based on the ideXlab platform.
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first record of the invasive land flatworm bipalium adventitium Platyhelminthes geoplanidae in canada
Zootaxa, 2019Co-Authors: Jean-lou Justine, Thomas Thery, Delphine Gey, Leigh WinsorAbstract:Specimens of Bipalium adventitium (Platyhelminthes, Geoplanidae) were found in Montreal, Quebec, Canada. The specimens showed the typical colour pattern of the species and barcoding (Cytochrome Oxidase I) demonstrated near-identity with a sequence of the same species from the USA. This is the first record of the species in Canada.
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La classification générale des Plathelminthes parasites: changements récents et utilisation des caractères ultrastructuraux, en particulier des spermatozoïdes (1997)
2014Co-Authors: Jean-lou JustineAbstract:Justine J-L. 1997. La classification générale des Plathelminthes parasites: changements récents et utilisation des caractères ultrastructuraux, en particulier des spermatozoïdes. Bulletin de la Société Zoologique de France 122: 269-277. La classification des Plathelminthes parasites (= Aspidogastrea, Digenea, Monogenea, Amphilinidea, Gyrocotylidea et Eucestoda) a beaucoup changé depuis vingt ans, du fait de l'utilisation de la méthode cladistique et de l'apport de nouveaux caractères, en particulier ultrastructuraux. Parmi ces caractères ultrastructuraux, ceux des spermatozoïdes sont particulièrement nombreux et informatifs, du fait de la grande variabilité des gamètes mâles chez les Plathelminthes. La classification cladistique des Plathelminthes est présentée. Des exemples de synapomorphies ultrastructurales du spermatozoïde sont donnés pour la Trepaxonemata, les Temnocephalidea, les Eucestoda et les Cyclophyllidea The general classification of parasitic Platyhelminthes: recent changes, and the use of ultrastructural characters, particularly those of spermatozoa Bulletin de la Société Zoologique de France 122: 269-277. The classification of parasitic Platyhelminthes (= Aspidogastrea, Digenea, Monogenea, Amphilinidea, Gyrocotylidea and Eucestoda) has greatly clanged in the past twenty years, because of the use of the cladistic methodsand of the description of new characters, particularly those dealing with ultrastructure. Among these new characters, spermatozoal characters are especially numerous and informative, because of the great variability of male gametes in Platyhelminthes. The cladistic classification of the Platyhelminthes is presented. Examples of synapomorphies defined upon spermatozoal ultrastructure are given for the Trepaxonemata, the Temnocephalidea, the Eucestoda, and the Cyclophyllidea.
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the homology of cortical microtubules in platyhelminth spermatozoa a comparative immunocytochemical study of acetylated tubulin
Acta Zoologica, 1998Co-Authors: Jean-lou Justine, Carlo Iomini, Olga I Raikova, Isabelle MollaretAbstract:Spermatozoa of certain acoels, a group of primitive Platyhelminthes, and spermatozoa of the most derived Platyhelminthes, the Cercomeridea (parasitic Platyhelminthes), show a general morphological resemblance in that they are long filiform cells with two incorporated axonemes and longitudinal cortical microtubules. A possible way to test the homology of these cortical microtubules in the different groups is to analyze the presence/absence of post-translational modifications of tubulin. An indirect immunofluorescence study showed that the doublet microtubules of the sperm axonemes are labelled by an anti acetylated-alpha-tubulin antibody in all groups, irrespective of the axoneme pattern (9 + 0, 9 + 2 and non-trepaxonematan 9 + “1” in various acoels, and trepaxonematan 9 + “1” of the temnocephalid Troglocaridicola sp., the digenean Echinostoma caproni and the monopisthocotylean monogenean Pseudodactylogyrus sp.). Significant differences are found in the sperm cortical microtubules: they are acetylated in the acoel Actinoposthia beklemischevi, but not in the digenean E. caproni and the temnocephalid Troglocaridicola sp. These results suggest that the sperm cortical microtubules of the acoels are not homologous with the morphologically similar elements found in the higher Platyhelminthes.
