Phylogeny of Cephalobina (Nematoda): Molecular evidence for recurrent evolution of probolae and incongruence with traditional classifications
Nematodes of the suborder Cephalobina include an ecologically and morphologically diverse array of species that range from soil-dwelling microbivores to parasites of vertebrates and invertebrates. Despite a long history of study, certain of these microbivores (Cephaloboidea) present some of the most...
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ftunivwagenin:oai:library.wur.nl:wurpubs/351219 2024-02-04T09:55:20+01:00 Phylogeny of Cephalobina (Nematoda): Molecular evidence for recurrent evolution of probolae and incongruence with traditional classifications Nadler, S.A. de Ley, P. Mundo-Ocampo, M. Smythe, A.B. Stock, S.P. Bumbarger, D. Adams, B.J. de Ley, I.T. Holovachov, O.V. Baldwin, J.G. 2006 application/pdf https://research.wur.nl/en/publications/phylogeny-of-cephalobina-nematoda-molecular-evidence-for-recurren https://doi.org/10.1016/j.ympev.2006.04.005 en eng https://edepot.wur.nl/20253 https://research.wur.nl/en/publications/phylogeny-of-cephalobina-nematoda-molecular-evidence-for-recurren doi:10.1016/j.ympev.2006.04.005 info:eu-repo/semantics/restrictedAccess Wageningen University & Research Molecular Phylogenetics and Evolution 40 (2006) 3 ISSN: 1055-7903 antarctic soil buccal capsule genus pseudacrobeles steiner mojave desert n. sp nematoda nothacrobeles panagrolaimoidea rhabditida taxonomic characters variability info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2006 ftunivwagenin https://doi.org/10.1016/j.ympev.2006.04.005 2024-01-10T23:25:18Z Nematodes of the suborder Cephalobina include an ecologically and morphologically diverse array of species that range from soil-dwelling microbivores to parasites of vertebrates and invertebrates. Despite a long history of study, certain of these microbivores (Cephaloboidea) present some of the most intractable problems in nematode systematics; the lack of an evolutionary framework for these taxa has prevented the identification of natural groups and inhibited understanding of soil biodiversity and nematode ecology. Phylogenetic analyses of ribosomal (LSU) sequence data from 53 taxa revealed strong support for monophyly of taxa representing the Cephaloboidea, but do not support the monophyly of most genera within this superfamily. Historically these genera have primarily been recognized based on variation in labial morphology, but molecular phylogenies show the same general labial (probolae) morphotype often results from recurrent similarity, a result consistent with the phenotypic plasticity of probolae previously observed for some species in ecological time. Phylogenetic analyses of LSU rDNA also recovered strong support for some other groups of cephalobs, including taxa representing most (but not all) Panagrolaimoidea. In addition to revealing homoplasy of probolae, molecular trees also imply other unexpected patterns of character evolution or polarity, including recurrent similarity of offset spermatheca presence, and representation of complex probolae as the ancestral condition within Cephaloboidea. For Cephalobidae, molecular trees do not support traditional genera as natural groups, but it remains untested if deconstructing probolae morphotypes or other structural features into finer component characters may reveal homologies that help delimit evolutionary lineages Article in Journal/Newspaper Antarc* Antarctic Wageningen UR (University & Research Centre): Digital Library Antarctic Molecular Phylogenetics and Evolution 40 3 696 711 |
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Wageningen UR (University & Research Centre): Digital Library |
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ftunivwagenin |
language |
English |
topic |
antarctic soil buccal capsule genus pseudacrobeles steiner mojave desert n. sp nematoda nothacrobeles panagrolaimoidea rhabditida taxonomic characters variability |
spellingShingle |
antarctic soil buccal capsule genus pseudacrobeles steiner mojave desert n. sp nematoda nothacrobeles panagrolaimoidea rhabditida taxonomic characters variability Nadler, S.A. de Ley, P. Mundo-Ocampo, M. Smythe, A.B. Stock, S.P. Bumbarger, D. Adams, B.J. de Ley, I.T. Holovachov, O.V. Baldwin, J.G. Phylogeny of Cephalobina (Nematoda): Molecular evidence for recurrent evolution of probolae and incongruence with traditional classifications |
topic_facet |
antarctic soil buccal capsule genus pseudacrobeles steiner mojave desert n. sp nematoda nothacrobeles panagrolaimoidea rhabditida taxonomic characters variability |
description |
Nematodes of the suborder Cephalobina include an ecologically and morphologically diverse array of species that range from soil-dwelling microbivores to parasites of vertebrates and invertebrates. Despite a long history of study, certain of these microbivores (Cephaloboidea) present some of the most intractable problems in nematode systematics; the lack of an evolutionary framework for these taxa has prevented the identification of natural groups and inhibited understanding of soil biodiversity and nematode ecology. Phylogenetic analyses of ribosomal (LSU) sequence data from 53 taxa revealed strong support for monophyly of taxa representing the Cephaloboidea, but do not support the monophyly of most genera within this superfamily. Historically these genera have primarily been recognized based on variation in labial morphology, but molecular phylogenies show the same general labial (probolae) morphotype often results from recurrent similarity, a result consistent with the phenotypic plasticity of probolae previously observed for some species in ecological time. Phylogenetic analyses of LSU rDNA also recovered strong support for some other groups of cephalobs, including taxa representing most (but not all) Panagrolaimoidea. In addition to revealing homoplasy of probolae, molecular trees also imply other unexpected patterns of character evolution or polarity, including recurrent similarity of offset spermatheca presence, and representation of complex probolae as the ancestral condition within Cephaloboidea. For Cephalobidae, molecular trees do not support traditional genera as natural groups, but it remains untested if deconstructing probolae morphotypes or other structural features into finer component characters may reveal homologies that help delimit evolutionary lineages |
format |
Article in Journal/Newspaper |
author |
Nadler, S.A. de Ley, P. Mundo-Ocampo, M. Smythe, A.B. Stock, S.P. Bumbarger, D. Adams, B.J. de Ley, I.T. Holovachov, O.V. Baldwin, J.G. |
author_facet |
Nadler, S.A. de Ley, P. Mundo-Ocampo, M. Smythe, A.B. Stock, S.P. Bumbarger, D. Adams, B.J. de Ley, I.T. Holovachov, O.V. Baldwin, J.G. |
author_sort |
Nadler, S.A. |
title |
Phylogeny of Cephalobina (Nematoda): Molecular evidence for recurrent evolution of probolae and incongruence with traditional classifications |
title_short |
Phylogeny of Cephalobina (Nematoda): Molecular evidence for recurrent evolution of probolae and incongruence with traditional classifications |
title_full |
Phylogeny of Cephalobina (Nematoda): Molecular evidence for recurrent evolution of probolae and incongruence with traditional classifications |
title_fullStr |
Phylogeny of Cephalobina (Nematoda): Molecular evidence for recurrent evolution of probolae and incongruence with traditional classifications |
title_full_unstemmed |
Phylogeny of Cephalobina (Nematoda): Molecular evidence for recurrent evolution of probolae and incongruence with traditional classifications |
title_sort |
phylogeny of cephalobina (nematoda): molecular evidence for recurrent evolution of probolae and incongruence with traditional classifications |
publishDate |
2006 |
url |
https://research.wur.nl/en/publications/phylogeny-of-cephalobina-nematoda-molecular-evidence-for-recurren https://doi.org/10.1016/j.ympev.2006.04.005 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Molecular Phylogenetics and Evolution 40 (2006) 3 ISSN: 1055-7903 |
op_relation |
https://edepot.wur.nl/20253 https://research.wur.nl/en/publications/phylogeny-of-cephalobina-nematoda-molecular-evidence-for-recurren doi:10.1016/j.ympev.2006.04.005 |
op_rights |
info:eu-repo/semantics/restrictedAccess Wageningen University & Research |
op_doi |
https://doi.org/10.1016/j.ympev.2006.04.005 |
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Molecular Phylogenetics and Evolution |
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40 |
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3 |
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696 |
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711 |
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