TY - JOUR
T1 - Molecular identity of the Antarctic heteronemertean Parborlasia corrugata (Nemertea
T2 - Pilidiophora) from Lützow-Holm Bay
AU - Hookabe, Natsumi
AU - Watanabe, Kentaro
AU - Tsujimoto, Megumu
AU - Kajihara, Hiroshi
N1 - Funding Information:
This study is a part of the Science Program of JARE. It was supported by the National Institute of Polar Research ( NIPR ) under the Japanese Ministry of Education , Culture, Sports, Science, and Technology. KW is grateful to the JARE-46 members for the assistance in sample collection. Shintaro Takao (NIPR) prepared the map of Antarctica and the Southern Ocean. The present study is partially supported by NIPR through the General Collaboration for MT (Project Number 28–43) and Grant-in-Aid for Scientific Research (C) of Japan Society for the Promotion of Science for HK (Grant Number 17K07520 ).
Publisher Copyright:
© 2020 Elsevier B.V. and NIPR
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.
KW - Antarctic
KW - DNA barcode
KW - Lineidae
KW - Parborlasia corrugatus
KW - Statistical parsimony network
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U2 - 10.1016/j.polar.2020.100535
DO - 10.1016/j.polar.2020.100535
M3 - Article
AN - SCOPUS:85086830792
VL - 25
JO - Polar Science
JF - Polar Science
SN - 1873-9652
M1 - 100535
ER -