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Littérature scientifique sur le sujet « Xenacoelomorpha »

Auteur : Grafiati

Publié le 2 juin 2025

Mis à jour le 31 juillet 2025

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Articles de revues sur le sujet "Xenacoelomorpha"

Gavilán, Brenda, Elena Perea-Atienza, and Pedro Martínez. "Xenacoelomorpha: a case of independent nervous system centralization?" Philosophical Transactions of the Royal Society B: Biological Sciences 371, no. 1685 (2016): 20150039. http://dx.doi.org/10.1098/rstb.2015.0039.

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Centralized nervous systems (NSs) and complex brains are among the most important innovations in the history of life on our planet. In this context, two related questions have been formulated: How did complex NSs arise in evolution, and how many times did this occur? As a step towards finding an answer, we describe the NS of several representatives of the Xenacoelomorpha, a clade whose members show different degrees of NS complexity. This enigmatic clade is composed of three major taxa: acoels, nemertodermatids and xenoturbellids. Interestingly, while the xenoturbellids seem to have a rather ‘

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Arroyo, Alicia S., David López-Escardó, Colomban de Vargas, and Iñaki Ruiz-Trillo. "Hidden diversity of Acoelomorpha revealed through metabarcoding." Biology Letters 12, no. 9 (2016): 20160674. http://dx.doi.org/10.1098/rsbl.2016.0674.

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Animals with bilateral symmetry comprise the majority of the described species within Metazoa. However, the nature of the first bilaterian animal remains unknown. As most recent molecular phylogenies point to Xenacoelomorpha as the sister group to the rest of Bilateria, understanding their biology, ecology and diversity is key to reconstructing the nature of the last common bilaterian ancestor (Urbilateria). To date, sampling efforts have focused mainly on coastal areas, leaving potential gaps in our understanding of the full diversity of xenacoelomorphs. We therefore analysed 18S rDNA metabar

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Cannon, Johanna Taylor, Bruno Cossermelli Vellutini, Julian Smith, Fredrik Ronquist, Ulf Jondelius, and Andreas Hejnol. "Xenacoelomorpha is the sister group to Nephrozoa." Nature 530, no. 7588 (2016): 89–93. http://dx.doi.org/10.1038/nature16520.

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Haszprunar, Gerhard. "Review of data for a morphological look on Xenacoelomorpha (Bilateria incertae sedis)." Organisms Diversity & Evolution 16, no. 2 (2015): 363–89. https://doi.org/10.1007/s13127-015-0249-z.

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Haszprunar, Gerhard (2016): Review of data for a morphological look on Xenacoelomorpha (Bilateria incertae sedis). Organisms Diversity & Evolution (New York, N.Y.) 16 (2): 363-389, DOI: 10.1007/s13127-015-0249-z, URL: http://dx.doi.org/10.1007/s13127-015-0249-z

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Ceccolini, Filippo, and Fabio Cianferoni. "A replacement name for Pelophila Dörjes, 1968 (Xenacoelomorpha: Acoela, Convolutidae)." Graellsia 78, no. 1 (2022): e165. http://dx.doi.org/10.3989/graellsia.2022.v78.339.

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Se ha detectado un homónimo más moderno entre los Acoela (Xenacoelomorpha, Acoelomorpha) y se propone el siguiente nombre sustitutivo: Acoelopelophila Ceccolini & Cianferoni nom. nov. pro Pelophila Dörjes, 1968 nec Dejean, 1821. Se da también la siguiente nueva combinación: Acoelopelophila lutheri (Westblad, 1946) comb. nov.

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TYLER, SETH, and STEPHEN SCHILLING. "Phylum Xenacoelomorpha Philippe, et al., 2011. In: Zhang, Z.-Q. (Ed.) Animal biodiversity: An outline of higher-level classification and survey of taxonomic richness." Zootaxa 3148, no. 1 (2011): 24–25. https://doi.org/10.11646/zootaxa.3148.1.6.

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TYLER, SETH, SCHILLING, STEPHEN (2011): Phylum Xenacoelomorpha Philippe, et al., 2011. In: Zhang, Z.-Q. (Ed.) Animal biodiversity: An outline of higher-level classification and survey of taxonomic richness. Zootaxa 3148 (1): 24-25, DOI: 10.11646/zootaxa.3148.1.6, URL: http://dx.doi.org/10.11646/zootaxa.3148.1.6

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Çinar, Melih Ertan. "Checklist of the phyla Platyhelminthes, Xenacoelomorpha, Nematoda, Acanthocephala, Myxozoa, Tardigrada, Cephalorhyncha, Nemertea, Echiura, Brachiopoda, Phoronida, Chaetognatha, and Chordata (Tunicata, Cephalochordata,." Turkish Journal of Zoology 38, no. 6 (2014): 698–722. https://doi.org/10.3906/zoo-1405-70.

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Çinar, Melih Ertan (2014): Checklist of the phyla Platyhelminthes, Xenacoelomorpha, Nematoda, Acanthocephala, Myxozoa, Tardigrada, Cephalorhyncha, Nemertea, Echiura, Brachiopoda, Phoronida, Chaetognatha, and Chordata (Tunicata, Cephalochordata,. Turkish Journal of Zoology 38 (6): 698-722, DOI: 10.3906/zoo-1405-70, URL: http://dx.doi.org/10.3906/zoo-1405-70

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Kapli, Paschalia, and Maximilian J. Telford. "Topology-dependent asymmetry in systematic errors affects phylogenetic placement of Ctenophora and Xenacoelomorpha." Science Advances 6, no. 50 (2020): eabc5162. http://dx.doi.org/10.1126/sciadv.abc5162.

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The evolutionary relationships of two animal phyla, Ctenophora and Xenacoelomorpha, have proved highly contentious. Ctenophora have been proposed as the most distant relatives of all other animals (Ctenophora-first rather than the traditional Porifera-first). Xenacoelomorpha may be primitively simple relatives of all other bilaterally symmetrical animals (Nephrozoa) or simplified relatives of echinoderms and hemichordates (Xenambulacraria). In both cases, one of the alternative topologies must be a result of errors in tree reconstruction. Here, using empirical data and simulations, we show tha

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Perea-Atienza, E., B. Gavilan, M. Chiodin, et al. "The nervous system of Xenacoelomorpha: a genomic perspective." Journal of Experimental Biology 218, no. 4 (2015): 618–28. http://dx.doi.org/10.1242/jeb.110379.

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Ceccolini, Filippo, and Fabio Cianferoni. "A replacement name for Pelophila Dörjes, 1968 (Xenacoelomorpha: Acoela, Convolutidae)." Graellsia 78, no. 1 (2022): e165 [2 pp.]. https://doi.org/10.3989/graellsia.2022.v78.339.

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The following replacement name in Acoela (Xenacoelomorpha, Acoelomorpha) is proposed: Acoelopelophila Ceccolini & Cianferoni nom. nov. pro Pelophila Dörjes, 1968 nec Dejean, 1821. Further, the following new combination is also established: Acoelopelophila lutheri (Westblad, 1946) comb. nov.

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Thèses sur le sujet "Xenacoelomorpha"

Tomiczek, B. P. "Computational analysis of gene content in Xenacoelomorpha." Thesis, University College London (University of London), 2017. http://discovery.ucl.ac.uk/1558313/.

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Xenacoelomorpha are simple, marine worms with net-like nervous systems, no circulatory or respiratory systems and a blind gut. The phylogenetic position of Xenacoelomorpha is the subject of ongoing debate in the literature. The two possible locations for the Xenacoelomorpha within the animal tree are i) as the sister clade to all other bilaterians and ii) as deuterostomes, closely related to the Ambulacraria (echinoderms and hemichordates). The understanding of the phylogenetic position of Xenacoelomorpha has major implications in understanding the appearance of the Bilateria last common ances

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Robertson, Helen Elizabeth. "Molecular approaches for studying the evolution of the Xenacoelomorpha." Thesis, University College London (University of London), 2017. http://discovery.ucl.ac.uk/10038990/.

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The Xenacoelomorpha comprises the genus Xenoturbella and two related groups of acoelomorph worms – the Acoela and Nemertodermatida. The phylogenetic position of the Xenacoelomorpha is debated. Previous work suggested that they are deuterostomes; alternative publications suggest they are outside the main group of bilaterians (protostomes and deuterostomes). All members of the Xenacoelomorpha have a simple body plan: they are unsegmented; lack a coelomic cavity; and are commonly assumed to lack any of the organs commonly associated with the Bilateria. In the first part of this thesis, I develop

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Chapitres de livres sur le sujet "Xenacoelomorpha"

Egger, Bernhard. "Studying Xenacoelomorpha WBR Using Isodiametra pulchra." In Methods in Molecular Biology. Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2172-1_13.

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AbstractXenacoelomorpha are a phylogenetically and biologically interesting, but severely understudied group of worm-like animals. Among them, the acoel Isodiametra pulchra has been shown to be amenable to experimental work, including the study of stem cells and regeneration. The animal is capable of regenerating the posterior part of the body, but not its head. Here, methods such as nucleic acid extractions, in situ hybridisation, RNA interference, antibody and cytochemical stainings, and the general handling of the animals are presented.

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Jondelius, Ulf, Olga I. Raikova, and Pedro Martinez. "Xenacoelomorpha, a Key Group to Understand Bilaterian Evolution: Morphological and Molecular Perspectives." In Evolution, Origin of Life, Concepts and Methods. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-30363-1_14.

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Brusca, Richard C., Gonzalo Giribet, and Wendy Moore. "Phylum Xenacoelomorpha." In Invertebrates. Oxford University Press, 2022. http://dx.doi.org/10.1093/hesc/9780197554418.003.0009.

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This chapter notes the characteristics of the phylum Xenacoelomorpha. It explains that the evolution of bilaterality resulted in cephalization with the exception of Xenacoelomorpha, wherein bilaterians further evolved a complete gut with a mouth and an anus, and excretory organs in the form of protonephridia and metanephridia. Phylogenetic research strongly suggests that the Xenacoelomorpha split early from the remaining bilaterian lineage. The phylum Xenacoelomorpha comprises three clades of acoelomate worms: Acoela, Nemertodermatida, and Xenoturbellida. The chapter mentions how important are

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"XENACOELOMORPHA." In The Invertebrate Tree of Life. Princeton University Press, 2020. http://dx.doi.org/10.2307/j.ctvscxrhm.14.

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"10. Xenacoelomorpha." In The Invertebrate Tree of Life. Princeton University Press, 2020. http://dx.doi.org/10.1515/9780691197067-012.

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Brusca, Richard C., Gonzalo Giribet, and Wendy Moore. "A Brief Introduction to the Bilateria and Its Major Clades." In Invertebrates. Oxford University Press, 2022. http://dx.doi.org/10.1093/hesc/9780197554418.003.0008.

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This chapter introduces the Bilateria and its major clades. It describes how the phyla within Bilateria changed following the emergence of molecular phylogenetics in the 1990s. Several long-standing groups, such as Protostomia and Deuterostomia, have changed their phylum memberships, and a number of new higher-level clades have emerged. Essentially, the Bilateria is a clade of animals whose adult tissues are derived from three embryonic germ layers and whose body axis is anteroposterior. Deuterostomia includes only three phyla, (Chordata, Hemichordata, and Echinodermata), while Protosomia is a

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