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http://dx.doi.org/10.3347/kjp.2020.58.1.87

Morphological and Molecular Confirmation of Parvatrema duboisi Metacercariae in the Manila Clam Ruditapes philippinarum from Gochang-gun, Korea  

Chang, Taehee (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Jung, Bong-Kwang (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Shin, Hyejoo (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Hong, Sooji (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Lee, Jeonggyu (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Kim, Deok-Gyu (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Patarwut, Laddawan (Department of Zoology, Faculty of Science, Kasetsart University)
Sohn, Woon-Mok (Institute of Health Sciences, Gyeongsang National University College of Medicine)
Chai, Jong-Yil (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Publication Information
Parasites, Hosts and Diseases / v.58, no.1, 2020 , pp. 87-91 More about this Journal
Abstract
Gymnophallid metacercariae found in the Manila clam Ruditapes philippinarum ('Banjirak' in Korean) from Gochang-gun, Jeollabuk-do, Korea were morphologically and molecularly confirmed to be Parvatrema duboisi (Dollfus, 1923) Bartoli, 1974. The metacercariae were morphologically characterized by having a large oral sucker, small ventral sucker, genital pore some distance anterior to the ventral sucker, no ventral pit, and 1 compact or slightly lobed vitellarium, which were all compatible with P. duboisi. Some of the metacercariae were experimentally fed to mice, and adult flukes were recovered at day 7 post-infection. The morphology of the adult flukes was basically the same as that of the metacercariae except for the presence of uterine eggs; the uterus was filled with up to 40 eggs. The nucleotide sequences (1,193 bp) from ITS regions (ITS1, 5.8S rDNA, and ITS2) of the metacercariae showed 99.7% identity with P. duboisi and 75.7% identity with Gymnophalloides seoi deposited in GenBank. These results confirmed the presence of P. duboisi metacercariae in the Manila clam R. philippinarum in an estuary region of Gochang-gun, Korea.
Keywords
Parvatrema duboisi; gymnophallid; Manila clam; Gochang-gun; Korea;
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