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Polymorphism hides cryptic species in Oerstedia dorsalis (Nemertea, Hoplonemertea)
Sundberg, P.; Vodoti, E.T.; Zhou, H.; Strand, M. (2009). Polymorphism hides cryptic species in Oerstedia dorsalis (Nemertea, Hoplonemertea). Biol. J. Linn. Soc. 98(3): 556-567. http://dx.doi.org/10.1111/j.1095-8312.2009.01310.x
In: Biological Journal of the Linnean Society. Academic Press: London; New York. ISSN 0024-4066; e-ISSN 1095-8312, meer
Peer reviewed article  

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Trefwoorden
    Acids > Organic compounds > Organic acids > Nucleic acids > DNA
    Aquatic organisms > Marine organisms
    Biogeny > Phylogeny
    Distribution > Geographical distribution
    Polymorphism
    Population
    Worms
    Hoplonemertea [WoRMS]; Nemertea [WoRMS]; Oerstedia dorsalis (Abildgaard, 1806) [WoRMS]
    Marien
Author keywords
    DNA sequences; population phylogeny; ribbon worm; species delimitation;statistical parsimony

Auteurs  Top 
  • Sundberg, P.
  • Vodoti, E.T.
  • Zhou, H.
  • Strand, M.

Abstract
    The marine hoplonemertean Oerstedia dorsalis is considered to be a highly polymorphic species with extensive geographic distribution. We show, based on mitochondrial cytochrome c oxidase subunit I, 16S and nuclear internal transcribed spacer sequences, that there are genetic subsets withing this species. Seventy-one specimens of various colours from different geographic localities (in Europe) were sequenced and analysed using statistical parsimony and Bayesian analysis. Both analyses supported nine major clades. We conclude that O. dorsalis hides different species with geographic resolution. These species, however, appear to be polymorphic as well, and we find no diagnostic features in pigmentation or external characters to separate species within this complex

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