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e-ased.org, vol. 30, no. 2, pp.87-94, April, 2014

DOI: http://dx.doi.org/10.5635/ASED.2014.30.2.087

First Record of Orobdella tsushimensis (Hirudinida: Arhynchobdellida: Gastrostomobdellidae) from the Korean Peninsula and Molecular Phylogenetic Relationships of the Specimens

Takafumi Nakano1,*, Hong-Yul Seo2
1Department of Zoology, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan 2National Institute of Biological Resources, Incheon 404-708, Korea

Abstract: Specimens of the genus Orobdella Oka, 1895 from Korea, including various locations in the Korean Peninsula, were identified as Orobdella tsushimensis Nakano, 2011. Phylogenetic analyses using mitochondrial cytochrome oxidase subunit 1 (COI), ND1, tRNACys, tRNAMet, 12S rRNA, tRNAval, and 16S rRNA markers show that the newly collected specimens form a monophyletic group with the known O. tsushimensis specimens. The genetic distance of COI of these specimens was in the range 0.4-6.6%. These results confirm that the newly collected specimens belong to O. tsushimensis. This is the first record of the genus Orobdella from the Korean Peninsula.

Keyword: Hirudinida, Gastrostomobdellidae, Orobdella tsushimensis, molecular phylogeny, first record, Korean Peninsula