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New record of “Bathymodiolus” mauritanicus Cosel 2002 from the Gulf of Cadiz (NE Atlantic) mud volcanoes
Génio, L.; Johnson, S.B.; Vrijenhoek, R.C.; Cunha, M.R.; Tyler, P.A.; Kiel, S.; Little, C.T.S. (2008). New record of “Bathymodiolus” mauritanicus Cosel 2002 from the Gulf of Cadiz (NE Atlantic) mud volcanoes. J. Shellfish Res. 27(1): 53-61. http://dx.doi.org/10.2983/0730-8000(2008)27[53:NROBMC]2.0.CO;2
In: Journal of Shellfish Research. National Shellfisheries Association: Duxbury. ISSN 0730-8000; e-ISSN 1943-6319
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Acids > Organic compounds > Organic acids > Nucleic acids > DNA
    ANE, Cadiz Gulf
    Cell constituents > Cell organelles > Mitochondria
    Deep sea
    Taxa
    Mytilidae Rafinesque, 1815 [WoRMS]
    Cadiz Gulf [Marine Regions]
    Marien/Kust
Author keywords
    deep-sea; mytilids; amphi-Atlantic taxa; mitochondrial DNA
Auteurs  Top 
  • Génio, L.
  • Johnson, S.B.
  • Vrijenhoek, R.C.
  • Cunha, M.R.
  • Tyler, P.A.
  • Kiel, S.
  • Little, C.T.S.
Abstract
    The “Bathymodiolus” childressi group is the most geographically diverse assemblage of deep-sea mussel species. In this paper we consider several possible hypotheses to explain the present biogeographic distribution of the “B.” childressi species complex. Mussels were collected for the first time from mud volcanoes in the Gulf of Cadiz (NE Atlantic Ocean) during the training through research (TTR) 16 research expedition in 2006. Preliminary observations of the shell features indicate that they belong to the “B.” childressi species complex, which has been recognized as morphologically and genetically distinct from other Bathymodiolus species. Molecular analyses of two mitochondrial genes (COI-5 and ND4) were used to characterize the new mussel population from the Gulf of Cadiz (GOC) and to determine their phylogenetic relationships with other members of the “B.” childressi group. The results indicate that the GOC mussels are conspecific with “Bathymodiolus” mauritanicus Cosel (2002), described from West Africa margin, and support a previous hypothesis that “B.” mauritanicus is an amphi-Atlantic species.
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