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  1. 学術雑誌論文
  2. 佐藤ユニット

A new species of Xenoturbella from the western Pacific Ocean and the evolution of Xenoturbella

https://oist.repo.nii.ac.jp/records/319
https://oist.repo.nii.ac.jp/records/319
895335a1-bf22-4812-9337-b866f2cf9e46
名前 / ファイル ライセンス アクション
document(2).pdf Full-Text (6.2 MB)
Creative Commons Attribution 4.0 International
(http://creativecommons.org/licenses/by/4.0/)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2018-03-13
タイトル
タイトル A new species of Xenoturbella from the western Pacific Ocean and the evolution of Xenoturbella
言語 en
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
著者(英) Nakano, Hiroaki

× Nakano, Hiroaki

Nakano, Hiroaki

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Miyazawa, Hideyuki

× Miyazawa, Hideyuki

Miyazawa, Hideyuki

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Maeno, Akiteru

× Maeno, Akiteru

Maeno, Akiteru

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Shiroishi, Toshihiko

× Shiroishi, Toshihiko

Shiroishi, Toshihiko

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Kakui, Keiichi

× Kakui, Keiichi

Kakui, Keiichi

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Koyanagi, Ryo

× Koyanagi, Ryo

Koyanagi, Ryo

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Kanda, Miyuki

× Kanda, Miyuki

Kanda, Miyuki

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Satoh, Noriyuki

× Satoh, Noriyuki

Satoh, Noriyuki

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Omori, Akihito

× Omori, Akihito

Omori, Akihito

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Kohtsuka, Hisanori

× Kohtsuka, Hisanori

Kohtsuka, Hisanori

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書誌情報 en : BMC Evolutionary Biology

巻 17, p. 245, 発行日 2017-12-18
抄録
内容記述タイプ Other
内容記述 Background: Xenoturbella is a group of marine benthic animals lacking an anus and a centralized nervous system. Molecular phylogenetic analyses group the animal together with the Acoelomorpha, forming the Xenacoelomorpha. This group has been suggested to be either a sister group to the Nephrozoa or a deuterostome, and therefore it may provide important insights into origins of bilaterian traits such as an anus, the nephron, feeding larvae and centralized nervous systems. However, only five Xenoturbella species have been reported and the evolutionary history of xenoturbellids and Xenacoelomorpha remains obscure.

Results: Here we describe a new Xenoturbella species from the western Pacific Ocean, and report a new xenoturbellid structure - the frontal pore. Non-destructive microCT was used to investigate the internal morphology of this soft-bodied animal. This revealed the presence of a frontal pore that is continuous with the ventral glandular network and which exhibits similarities with the frontal organ in acoelomorphs.

Conclusions: Our results suggest that large size, oval mouth, frontal pore and ventral glandular network may be ancestral features for Xenoturbella. Further studies will clarify the evolutionary relationship of the frontal pore and ventral glandular network of xenoturbellids and the acoelomorph frontal organ. One of the habitats of the newly identified species is easily accessible from a marine station and so this species promises to be valuable for research on bilaterian and deuterostome evolution.
出版者
出版者 BioMed Central
ISSN
収録物識別子タイプ ISSN
収録物識別子 1471-2148
PubMed番号
関連タイプ isIdenticalTo
識別子タイプ PMID
関連識別子 info:pmid/29249199
DOI
関連タイプ isIdenticalTo
識別子タイプ DOI
関連識別子 info:doi/10.1186/s12862-017-1080-2
権利
権利情報 © 2017 The Author(s).
関連サイト
識別子タイプ URI
関連識別子 https://bmcevolbiol.biomedcentral.com/articles/10.1186/s12862-017-1080-2
著者版フラグ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
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