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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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Commensal scale-worms of the genus Branchipolynoe (Polychaeta: Polynoidae) at deep-sea hydrothermal vents and cold seeps Chevaldonné, P.; Jollivet, D.; Feldman, R.A.; Desbruyères, D.; Lutz, R.A.; Vrijenhoek, R.C. (1998). Commensal scale-worms of the genus Branchipolynoe (Polychaeta: Polynoidae) at deep-sea hydrothermal vents and cold seeps. Cah. Biol. Mar. 39(3-4): 347-350. https://dx.doi.org/10.21411/CBM.A.F0422C17 In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723; e-ISSN 2262-3094, meer Ook verschenen in: (1998). Proceedings of the First International Symposium on Deep-Sea Hydrothermal Vent Biology: Funchal, Madeira, Portugal 20-24 October 1997. Cahiers de Biologie Marine, 39(3-4). Station Biologique de Roscoff: Roscoff. 219-392 pp., meer

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VLIZ: Open access 287751 [ download pdf ]

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Trefwoord

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Auteurs		Top
Chevaldonné, P., meer Jollivet, D. Feldman, R.A.	Desbruyères, D., meer Lutz, R.A. Vrijenhoek, R.C.

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Abstract

Specimens of Branchipolynoe have been collected from several locations on the Galapagos Rift, the East Pacific Rise, the Mid-Atlantic Ridge (MAR) and the Louisiana Slope in the Gulf of Mexico. DNA was extracted from frozen specimens and the analysis of DNA sequences was done. There is a clear divergence between the Pacific and Atlantic species of Branchipolynoe included in this study. The nucleotide divergence is 17-20% for the COI gene and ca. 8% for the 16S rDNA, which is evidence for an ancient isolation of the two groups. Within the Atlantic, the vent and the seep commensals appear to have diverged as well. The nucleotide divergence is higher than 5% for the COI and 1.4% for the 16S rDNA. Such values are not negligible and strongly suggest isolation of the two groups. Within each group, the distance values clearly indicate infra-specific relationships, but there seem to be a greater genetic variability in B. symmytilida than for the Atlantic species. The first significant information derived from this preliminary phylogenetic analysis of the genus Branchipolynoe is that B. seepensis from the Gulf of Mexico and from the MAR appear to have recently diverged, and must be considered as two isolated phylogenetic species.

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