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Molecular identity of the Antarctic heteronemertean Parborlasia corrugata (Nemertea : Pilidiophora) from Lützow-Holm Bay

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Title: Molecular identity of the Antarctic heteronemertean Parborlasia corrugata (Nemertea : Pilidiophora) from Lützow-Holm Bay
Authors: Hookabe, Natsumi Browse this author
Watanabe, Kentaro Browse this author
Tsujimoto, Megumu Browse this author
Kajihara, Hiroshi Browse this author →KAKEN DB
Keywords: Antarctic
DNA barcode
Parborlasia corrugatus
Statistical parsimony network
Issue Date: Sep-2020
Publisher: Elsevier
Journal Title: Polar Science
Volume: 25
Start Page: 100535
Publisher DOI: 10.1016/j.polar.2020.100535
Abstract: The Antarctic heteronemertean Parborlasia corrugata (McIntosh, 1876) (originally Lineus corrugatus) shows a circumpolar distribution in the Southern Ocean, putatively with high dispersal capacity of the planktonic larva. From the eastern coast of Lutzow-Holm Bay near Syowa Station (69 degrees 00'S, 39 degrees 35'E), several records of heteronemerteans have been made under the name of Lineus corrugatus. However, they have never been explicitly identified by molecular data. In the present study, we determined a partial sequence of the mitochondrial cytochrome c oxidase subunit I (COI) gene for 11 specimens of P. corrugata collected from depths of 17-27 m under sea ice near Syowa Station. A haplotype-network analysis along with other COI sequences from 66 individuals collected at different places in the Antarctic and sub-Antarctic islands, available at public databases, resulted in that all the 11 specimens from Lutzow-Holm Bay possessed either of two major haplotypes detected in previous studies. It reflects the effective dispersal of the species between the localities including Lutzow-Holm Bay.
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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