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Marine Biology

, Volume 127, Issue 3, pp 507–513 | Cite as

Molecular phylogeny of vestimentiferans collected around Japan, revealed by the nucleotide sequences of mitochondrial DNA

  • S. Kojima
  • R. Segawa
  • J. Hashimoto
  • S. Ohta

Abstract

The phylogenetic relationships among local populations of undescribed vestimentiferan species that belong to the genera Lamellibrachia and Escarpia and had been collected at six sites around Japan were analyzed on the basis of the partial (1023 bp) nucleotide sequences of the mitochondrial gene for cytochrome oxidase I (COI), using a pogonophoran and a polychaete as outgroups. The identical amino acid sequence was deduced from the nucleotide sequence obtained from each of the vestimentiferans analyzed. The strong similarity among deduced amino acid sequences of COI suggested a close relationship between vestimentiferans and pogonophorans. On the basis of the phylogenetic relationships, the analyzed vestimentiferan populations were classified tentatively as five species. The genetic differentiation of vestimentiferans was suggested to occur bathymetrically as well as being a consequence of horizontal segregation. Two of these tentatively identified species inhabit both a hydrothermal area and a cold seep area, as is the case for some species of bivalves that belong to the genera Bathymodiolus and Calyptogena.

Keywords

Amino Acid Sequence Nucleotide Sequence Bivalve Phylogenetic Relationship Genetic Differentiation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • S. Kojima
    • 1
  • R. Segawa
    • 2
  • J. Hashimoto
    • 3
  • S. Ohta
    • 1
  1. 1.Ocean Research Institute, University of Tokyo, 1‐15‐1 Minamidai, Nakano, Tokyo 164, JapanJP
  2. 2.Department of Biology, Faculty of Science, Tokyo Metropolitan University, 1‐1 Minami-Osawa, Hachioji, Tokyo 192‐03, JapanJP
  3. 3.Japan Marine Science and Technology Center, 2‐15 Natsushima, Yokosuka, Kanagawa 237, JapanJP

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