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Taxonomic distinction of Ophelia barquii and O. bicornis (Annelida: Polychaeta) in the Mediterranean as revealed by ISSR markers and the number of nephridiopores
Maltagliati, F.; Casu, M.; Lai, T.; Sareri, D.I.; Casu, D.; Galletti, M.C.; Cantone, G.; Castelli, A. (2005). Taxonomic distinction of Ophelia barquii and O. bicornis (Annelida: Polychaeta) in the Mediterranean as revealed by ISSR markers and the number of nephridiopores. J. Mar. Biol. Ass. U.K. 85(4): 835-841. https://dx.doi.org/10.1017/S0025315405011781
In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154; e-ISSN 1469-7769, more
Peer reviewed article  
Keywords
    Aquatic organisms > Marine organisms > Aquatic animals > Marine invertebrates
    Biodiversity
    Classification > Taxonomy
    System analysis
    Annelida [WoRMS]; Ophelia barquii; Ophelia bicornis Savigny, 1822 [WoRMS]; Polychaeta [WoRMS]
    A, Atlantic [Marine Regions]; MED, Mediterranean [Marine Regions]
    Marine/Coastal
Authors  Top 
  • Maltagliati, F., more
  • Casu, M.
  • Lai, T.
  • Sareri, D.I.
  • Casu, D.
  • Galletti, M.C.
  • Cantone, G.
  • Castelli, A., more
Abstract
    Opheliabicornissensulato is a polychaete living in intertidal sandy habitats of Mediterranean and European Atlantic coasts, whose systematics have been strongly debated in the past few decades. In the present work the count of nephridiopores was coupled with genetic analysis carried out with DNA markers (inter simple sequence repeats) for a total of 30 individuals collected at six Italian beaches. Exact test, analysis of molecular variance, non-metric multidimensional scaling and assignment tests clearly separated individuals with five nephridiopore pairs from those with six pairs. This finding validated results of a recent allozyme study in which O.bicornissensulato was split into O.bicornissensustricto (six nephridiopore pairs) and O.barquii (five nephridiopore pairs). This paper represents a further contribution to the estimation of biodiversity within marine invertebrates.
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