First report of Perkinsus honshuensis in the variegated carpet shell clam Ruditapes variegatus in Korea
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Title
- First report of Perkinsus honshuensis in the variegated carpet shell clam Ruditapes variegatus in Korea
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Author(s)
- Kang, Hyun-Sil; Yang, Hyun-Sung; Reece, Kimberly S.; Hong, Hyun-Ki; Park, Kyung-Il; Choi, Kwang-Sik
- KIOST Author(s)
- Yang, Hyun Sung(양현성)
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Alternative Author(s)
- 양현성
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Publication Year
- 2016-11-22
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Abstract
- The recent discovery of Perkinsus honshuensis, a new Perkinsus species infecting Manila clams Ruditapes philippinarum (Sowerby, 1852), in Japan, suggested that, based on proximity, P. honshuensis could also be in Korean waters, where to date, P. olseni was believed to be the only Perkinsus species present. Perkinsus sp. infections consistently occurred among Ruditapes variegatus clams on a pebble beach on Jeju Island, off the south coast of Korea. The typical 'signet ring' morphology of the parasite was observed in the connective tissue of the digestive gland, and infection intensity was comparatively low (3.3 x 10(3) +/- 1.2 x 10(4) to 1.3 x 10(4) +/- 6.1 x 10(4) cells g(-1) gill weight). Further DNA analyses of internal transcribed spacer (ITS-1, 5.8S and ITS-2) and non-transcribed spacer (NTS) regions of the parasite showed 98.9-99.8 and 98.5-99.5% similarity to those of P. honshuensis from Japan, respectively. Phylogenetic analyses using ITS and NTS sequences indicated that Perkinsus sp. from Jeju formed a highly supported clade with P. honshuensis. This is the first report of P. honshuensis infections in clams in Korean waters and the first report of R. variegatus as a host for that parasite.
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ISSN
- 0177-5103
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/1401
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DOI
- 10.3354/dao03063
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Bibliographic Citation
- DISEASES OF AQUATIC ORGANISMS, v.122, no.1, pp.35 - 41, 2016
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Publisher
- INTER-RESEARCH
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Subject
- MANILA CLAMS; PHILIPPINARUM; SPP.; OLSENI
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Keywords
- Perkinsus honshuensis; Ruditapes variegatus; Ray' s fluid thioglycollate medium; RFTM; Histology; ITS; NTS
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Type
- Article
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Language
- English
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Document Type
- Article
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