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Issue: Vol. 2838 No. 1: 29 Apr. 2011
Type: Articles
Published: 2011-04-29
DOI: 10.11646/zootaxa.2838.1.5
Page range: 79–84
Abstract views: 50
PDF downloaded: 1

First genetic data for species of the genus Haploniscus Richardson, 1908 (Isopoda: Asellota: Haploniscidae) from neighbouring deep-sea basins in the South Atlantic

Senckenberg am Meer, German Centre for Marine Biodiversity Research (DZMB), c/o Biocentrum Grindel, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany
University of Hamburg, Biocentrum Grindel, Zoological Museum, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany
Ruhr University Bochum, Department of Animal Ecology, Evolution and Biodiversity, Universitaetsstrasse 150, D-44801 Bochum, Germany
Crustacea Isopoda Haploniscidae deep sea CO1 DNA barcoding

Abstract

The phylogenetic analysis in this study, based on a fragment of the CO1 mtDNA gene, provides first evidence in favour of Brökeland’s (2010) conclusion of recent or ongoing gene flow in Haploniscus rostratus (Menzies, 1962) across the Walvis ridge. It adds the first evidence for the presence of either restricted gene flow or potential cryptic species in the Guinea Basin. The data suggest furthermore that distinct species within the H. unicornis complex occur sympatrically in the East Atlantic deep-sea basin north of the Walvis Ridge. However, without more specimens (males in particular) and more markers, other processes that may have generated this pattern cannot be excluded.

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