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  • Springer  (4)
  • 1995-1999  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Molecular evidence for Acanthocephala as a subtaxon of Rotifera (1996)
    Springer
    Journal of molecular evolution 43 (1996), S. 287-292 
    Details
    ISSN: 1432-1432
    Keywords: Rotifers ; Acanthocephalans ; Bdelloidea ; Lemniscea
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Rotifers are free-living animals usually smaller than 1 mm that possess a characteristic wheel organ. Acanthocephalans (thorny-headed worms) are larger endoparasitic animals that use vertebrates and arthropods to complete their life cycle. The taxa Acanthocephala and Rotifera are considered separate phyla, often within the taxon Aschelminthes. We have reexamined the relationship between Rotifera and Acanthocephala using 18S rRNA gene sequences. Our results conclusively show that Acanthocephala is the sister group of the rotifer class Bdelloidea. Rotifera was nonmonophyletic in all molecular analyses, which supports the hypothesis that the Acanthocephala represent a taxon within the phylum Rotifera and not a separate phylum. These results agree with a previous cladistic study of morphological characters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02338837
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Molecular Evidence for Acanthocephala as a Subtaxon of Rotifera (1996)
    Springer
    Journal of molecular evolution 43 (1996), S. 287-292 
    Details
    ISSN: 1432-1432
    Keywords: Key words: Rotifers — Acanthocephalans — Bdelloidea — Lemniscea
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract. Rotifers are free-living animals usually smaller than 1 mm that possess a characteristic wheel organ. Acanthocephalans (thorny-headed worms) are larger endoparasitic animals that use vertebrates and arthropods to complete their life cycle. The taxa Acanthocephala and Rotifera are considered separate phyla, often within the taxon Aschelminthes. We have reexamined the relationship between Rotifera and Acanthocephala using 18S rRNA gene sequences. Our results conclusively show that Acanthocephala is the sister group of the rotifer class Bdelloidea. Rotifera was nonmonophyletic in all molecular analyses, which supports the hypothesis that the Acanthocephala represent a taxon within the phylum Rotifera and not a separate phylum. These results agree with a previous cladistic study of morphological characters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00006088
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The evolutionary relationships of rotifers and acanthocephalans (1998)
    Springer
    Hydrobiologia 287-388 (1998), S. 83-91 
    Details
    ISSN: 1573-5117
    Keywords: phylogeny ; acanthocephala ; rotifera ; bilateria ; evolution ; 18S rRNA gene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Advances in morphological and molecular studies of metazoan evolution have led to a better understanding of the relationships among Rotifera (Monogononta, Bdelloidea, Seisonidea) and Acanthocephala, and their relationships to other bilateral animals. The most accepted morphological analysis places Acanthocephala as a sister group to Rotifera, although other studies have placed Acanthocephala as a sister taxon to Bdellodea or Seisonidea. Molecular analyses using nuclear 18S rRNA and mitochondrial 16S rRNA genes support Acanthocephala as a sister taxon to Bdelloidea, although no molecular data is available for Seisonidea. Combining molecular and morphological analyses of Bilateria leads to a tree with Platyhelminthes, Rotifera, Acanthocephala and Gnathostomulida (and probably Gastrotricha) as a sister group to the annelid-mollusc lineage of the Spiralia (Lophotrochozoa).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1017060902909
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  • 4
    Electronic Resource
    Electronic Resource
    The evolutionary relationships of rotifers and acanthocephalans (1998)
    Springer
    Hydrobiologia 387-388 (1998), S. 83-91 
    Details
    ISSN: 1573-5117
    Keywords: phylogeny ; acanthocephala ; rotifera ; bilateria ; evolution ; 18S rRNA gene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Advances in morphological and molecular studies of metazoan evolution have led to a better understanding of the relationships among Rotifera (Monogononta, Bdelloidea, Seisonidea) and Acanthocephala, and their relationships to other bilateral animals. The most accepted morphological analysis places Acanthocephala as a sister group to Rotifera, although other studies have placed Acanthocephala as a sister taxon to Bdellodea or Seisonidea. Molecular analyses using nuclear 18S rRNA and mitochondrial 16S rRNA genes support Acanthocephala as a sister taxon to Bdelloidea, although no molecular data is available for Seisonidea. Combining molecular and morphological analyses of Bilateria leads to a tree with Platyhelminthes, Rotifera, Acanthocephala and Gnathostomulida (and probably Gastrotricha) as a sister group to the annelid-mollusc lineage of the Spiralia (Lophotrochozoa).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1017060902909
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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