| タイトル |
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en
Phylogenetic Position of Arctotanais in the Suborder Tanaidomorpha (Peracarida : Tanaidacea)
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| 作成者 |
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| アクセス権 |
open access |
| 権利情報 |
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en
This is a pre-copyedited, author-produced version of an article accepted for publication in Journal of Crustacean Biology following peer review. The version of record Journal of Crustacean Biology 32(1):127-139. 2012 is available online at:http://www.bioone.org/doi/abs/10.1163/193724011X615406
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| 主題 |
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Other
en
Arctotanais
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Other
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ischium
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Other
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molecular phylogeny
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Other
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Tanaidacea
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Other
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18S
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Other
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rRNA
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NDC
485
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| 内容注記 |
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Abstract
en
Lack of an ischium on pereiopods 1–6 was previously considered a synapomorphy for the tanaidacean superfamily Tanaoidea, although descriptions of Arctotanais alascensis (Richardson, 1899), the sole species in Arctotanais, indicated presence or absence of the ischium. To resolve this ambiguity, we examined newly collected specimens of A. alascensis (including males, which had not previously been described) from Hokkaido, Japan, using light and scanning electron microscopy. We also conducted molecular phylogenetic analyses based on partial sequences of the 18S rRNA gene to examine the phylogenetic position of A. alascensis. Here we describe in detail the morphology of the male of A. alascensis, which proved to be similar to that of the females. This species bears an ischium on pereiopods 1–6, which contradicts the current diagnoses of Tanaoidea and Tanaidae, although other synapomorphies remain valid. Molecular phylogenetic analyses strongly supported the placement of A. alascensis in Tanaoidea, and consequently we amended the diagnoses for Tanaoidea and Tanaidae to include either presence or absence of the ischium on the pereiopods.
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| 出版者 |
en
The Crustacean Society
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| 日付 |
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| 言語 |
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| 資源タイプ |
journal article |
| 出版タイプ |
AM |
| 資源識別子 |
HDL
http://hdl.handle.net/2115/68343
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| 関連 |
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isVersionOf
DOI
https://doi.org/10.1163/193724011X615406
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| 収録誌情報 |
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PISSN
0278-0372
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EISSN
1937-240X
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en
Journal of Crustacean Biology
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巻32
号1
開始ページ127
終了ページ139
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| ファイル |
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| コンテンツ更新日時 |
2023-07-26 |
