Phylogenetic position of acoel turbellarians inferred from partial 18S rDNA sequences.

DOI 機関リポジトリ (HANDLE) NDLデジタルコレクション NDLデジタルコレクション HANDLE ほか3件をすべて表示 一部だけ表示 被引用文献2件 オープンアクセス

書誌事項

タイトル別名
  • Phylogenetic Position of Acoel Turbella
公開日
1993-06
資源種別
journal article
DOI
  • 10.34425/zs001113
公開者
公益社団法人 日本動物学会

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説明

Primitive platyhelminths, especially Acoel turbellarians, are thought to be key to understanding the origin and evolution of metazoa. In order to infer their phylogenetic position within the phylum Platyhelminthes, we determined and compared the complete nucleotide sequence of a region of about 750 base pairs in the central part of an 18S rDNA for ten turbellarians, including two species of the group Acoela, six species of the group Polycladida, and two species of the group Tricladida. The deduced phylogenetic tree suggests that the three groups examined form discrete and separate entities. In addition, the tree suggests an earlier emergence of the Acoel turbellarians than the other platyhelminths. This animal may not be derived by means of secondary reduction from advanced acoelomates but may be nearest to its metazoan ancestors.

収録刊行物

  • Zoological Science

    Zoological Science 10 (3), 529-536, 1993-06

    公益社団法人 日本動物学会

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