Envall, M.; Sundberg, P. (1998). Phylogenetic relationships and genetic distances between some monostiliferous interstitial nemerteans (Ototyphlonemertes, Hoplonemertea, Nemertea) indicated from the 16S rRNA gene. Zoological Journal of the Linnean Society, 123(2): 105-115

338463

10.1111/j.1096-3642.1998.tb01295.x [view]

Envall, M.; Sundberg, P.

1998

123(2): 105-115

Publication

Available for editors   [request]

Part of the 16S rRNA mitochondrial gene is used to reconstruct the relationships within five populations representing three currently recognized species) of interstitial nemerteans (Ototyphlonemertes, Hoplonemertea, Nemertea), and to assess genetic divergence between representatives of these, populations. The non-helicophoran individuals form a monophyletic sister-group to the helicophoran taxon, which further resolves a previous hypothesis based on morphological characters. The small nucleotide differences between some of the populations are within levels expected for panmictic populations and fail to distinguish them genetically; without applying a phylogenic perspective, some of the populations may be allocated into paraphyletic species assemblages.

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