Trilobodrilus itoi sp nov., with a Re-Description of T. nipponicus (Annelida: Dinophilidae) and a MolecularPhylogeny of the Genus

Kajihara, Hiroshi; Ikoma, Maho; Yamasaki, Hiroshi; Hiruta, Shimpei F.

Trilobodrilus itoi sp nov., with a Re-Description of T. nipponicus (Annelida: Dinophilidae) and a MolecularPhylogeny of the Genus

Kajihara, Hiroshi; Ikoma, Maho; Yamasaki, Hiroshi et al.

Zoological science, 2015, 32(4), 405-417

Permalink : https://hdl.handle.net/2115/62716

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アクセス権	open access
URI	https://hdl.handle.net/2115/62716
タイトル	Trilobodrilus itoi sp nov., with a Re-Description of T. nipponicus (Annelida: Dinophilidae) and a MolecularPhylogeny of the Genus
著者	Kajihara, Hiroshi ; Ikoma, Maho ; Yamasaki, Hiroshi ; Hiruta, Shimpei F.
e-Rad_Researcher 30360895 著者名 Kajihara, Hiroshi
著者名 Ikoma, Maho
著者名 Yamasaki, Hiroshi
著者名 Hiruta, Shimpei F.
言語	英語
キーワード	North Pacific
	marine invertebrates
	archiannelid
	mesopsammon
	meiofauna
	interstitial
発行日	2015-08
出版者	Zoological Society of Japan
出版者	日本動物学会(ZSJ)
収録物名	Zoological science
巻(号)	32(4)
ページ	405-417
抄録	The marine interstitial annelid Trilobodrilus itoi sp. nov., the sixth member of the genus, is described on the basis of specimens collected intertidally at Ishikari Beach, Hokkaido, Japan; this is the second species in the genus described from the Pacific Rim. In addition, T. nipponicus Uchida and Okuda, 1943 is re-described based on fresh topotypic material from Akkeshi, Hokkaido, Japan. From both species, we determined sequences of the nuclear 18S and 28S rRNA genes, and the mitochondrial cytochrome c oxidase subunit I (COI) gene. Molecular phylogenetic trees based on concatenated sequences of the three genes showed that T. itoi and T. nipponicus form a clade, which was the sister group to a clade containing the two European congeners T. axi Westheide, 1967 and T. heideri Remane, 1925. The Kimura two-parameter distance for COI was 22.5-22.7% between T. itoi and T. nipponicus, comparable with interspecific values in other polychaete genera. We assessed the taxonomic utility of epidermal inclusions and found that the known six species can be classified into three groups.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	0289-0003
関連情報	PMID 26245229
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.2108/zs140251