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

Natsumi Hookabe; Kentaro Watanabe; Megumu Tsujimoto; Hiroshi Kajihara

doi:10.1016/j.polar.2020.100535

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

Natsumi Hookabe, Kentaro Watanabe, Megumu Tsujimoto, Hiroshi Kajihara

Faculty of Environment and Information Studies

Research output: Contribution to journal › Article › peer-review

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 Lützow-Holm Bay near Syowa Station (69°00′S, 39°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 Lützow-Holm Bay possessed either of two major haplotypes detected in previous studies. It reflects the effective dispersal of the species between the localities including Lützow-Holm Bay.

Original language	English
Article number	100535
Journal	Polar Science
Volume	25
DOIs	https://doi.org/10.1016/j.polar.2020.100535
Publication status	Published - 2020 Sep

Keywords

Antarctic
DNA barcode
Lineidae
Parborlasia corrugatus
Statistical parsimony network

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Aquatic Science
Ecology
Earth and Planetary Sciences(all)

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title = "Molecular identity of the Antarctic heteronemertean Parborlasia corrugata (Nemertea: Pilidiophora) from L{\"u}tzow-Holm Bay",

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 L{\"u}tzow-Holm Bay near Syowa Station (69°00′S, 39°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 L{\"u}tzow-Holm Bay possessed either of two major haplotypes detected in previous studies. It reflects the effective dispersal of the species between the localities including L{\"u}tzow-Holm Bay.",

keywords = "Antarctic, DNA barcode, Lineidae, Parborlasia corrugatus, Statistical parsimony network",

author = "Natsumi Hookabe and Kentaro Watanabe and Megumu Tsujimoto and Hiroshi Kajihara",

year = "2020",

month = sep,

doi = "10.1016/j.polar.2020.100535",

language = "English",

volume = "25",

journal = "Polar Science",

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T2 - Pilidiophora) from Lützow-Holm Bay

AU - Hookabe, Natsumi

AU - Watanabe, Kentaro

AU - Tsujimoto, Megumu

AU - Kajihara, Hiroshi

PY - 2020/9

Y1 - 2020/9

N2 - 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 Lützow-Holm Bay near Syowa Station (69°00′S, 39°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 Lützow-Holm Bay possessed either of two major haplotypes detected in previous studies. It reflects the effective dispersal of the species between the localities including Lützow-Holm Bay.

AB - 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 Lützow-Holm Bay near Syowa Station (69°00′S, 39°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 Lützow-Holm Bay possessed either of two major haplotypes detected in previous studies. It reflects the effective dispersal of the species between the localities including Lützow-Holm Bay.

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