Genetic differentiation of Anisakis species (Nematoda: Anisakidae) in marine fish Priacanthus tayenus from Gulf of Thailand

Members of the genus Anisakis are parasitic nematodes of the family Anisakidae. They are potential zoonotic parasites, causing anisakiasis in humans who consume raw or undercooked seafood (fish or squid) infected with the larvae of this nematode. In the present study, anisakid nematodes collected fr...

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Main Authors: Eamsobhana, Praphathip, Yong, Hoi Sen, Song, Sze Looi, Tungtrongchitr, Anchalee, Roongruangchai, Kosol
Format: Article
Published: Malaysian Society of Parasitology and Tropical Medicine 2018
Subjects:
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author Eamsobhana, Praphathip
Yong, Hoi Sen
Song, Sze Looi
Tungtrongchitr, Anchalee
Roongruangchai, Kosol
author_facet Eamsobhana, Praphathip
Yong, Hoi Sen
Song, Sze Looi
Tungtrongchitr, Anchalee
Roongruangchai, Kosol
author_sort Eamsobhana, Praphathip
collection UM
description Members of the genus Anisakis are parasitic nematodes of the family Anisakidae. They are potential zoonotic parasites, causing anisakiasis in humans who consume raw or undercooked seafood (fish or squid) infected with the larvae of this nematode. In the present study, anisakid nematodes collected from the marine fish Priacanthus tayenus (Purple-spotted big-eye) caught from the Gulf of Thailand were examined morphologically and characterized genetically by DNA sequence analysis. Sequence data from the mitochondrial cytochrome c oxidase subunit II (mtDNA cox2) gene were used to identify these nematodes to species level and to evaluate the phylogenetic relationship among various taxa. All the 15 third-stage larvae of Anisakis nematodes investigated in this study belonged to the same genetic lineage as the A. typica species complex (named here as A. typica sp. T – T for Thailand). Eight mtDNA cox2 haplotypes were revealed in the 15 isolates of this Anisakis from Thailand. The mtDNA cox2 haplotypes of A. typica sp. T from Thailand were genetically distinct from those of the A. typica sensu stricto. Taxonomic description of this A. typica sp. T as a distinct species however awaits the availability of adult specimens.
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spelling um.eprints-221162019-08-30T01:32:16Z http://eprints.um.edu.my/22116/ Genetic differentiation of Anisakis species (Nematoda: Anisakidae) in marine fish Priacanthus tayenus from Gulf of Thailand Eamsobhana, Praphathip Yong, Hoi Sen Song, Sze Looi Tungtrongchitr, Anchalee Roongruangchai, Kosol Q Science (General) QH Natural history R Medicine Members of the genus Anisakis are parasitic nematodes of the family Anisakidae. They are potential zoonotic parasites, causing anisakiasis in humans who consume raw or undercooked seafood (fish or squid) infected with the larvae of this nematode. In the present study, anisakid nematodes collected from the marine fish Priacanthus tayenus (Purple-spotted big-eye) caught from the Gulf of Thailand were examined morphologically and characterized genetically by DNA sequence analysis. Sequence data from the mitochondrial cytochrome c oxidase subunit II (mtDNA cox2) gene were used to identify these nematodes to species level and to evaluate the phylogenetic relationship among various taxa. All the 15 third-stage larvae of Anisakis nematodes investigated in this study belonged to the same genetic lineage as the A. typica species complex (named here as A. typica sp. T – T for Thailand). Eight mtDNA cox2 haplotypes were revealed in the 15 isolates of this Anisakis from Thailand. The mtDNA cox2 haplotypes of A. typica sp. T from Thailand were genetically distinct from those of the A. typica sensu stricto. Taxonomic description of this A. typica sp. T as a distinct species however awaits the availability of adult specimens. Malaysian Society of Parasitology and Tropical Medicine 2018 Article PeerReviewed Eamsobhana, Praphathip and Yong, Hoi Sen and Song, Sze Looi and Tungtrongchitr, Anchalee and Roongruangchai, Kosol (2018) Genetic differentiation of Anisakis species (Nematoda: Anisakidae) in marine fish Priacanthus tayenus from Gulf of Thailand. Tropical Biomedicine, 35 (3). pp. 669-677. ISSN 0127-5720, http://msptm.org/files/Vol35No3/669-677-Eamsobhana-P.pdf
spellingShingle Q Science (General)
QH Natural history
R Medicine
Eamsobhana, Praphathip
Yong, Hoi Sen
Song, Sze Looi
Tungtrongchitr, Anchalee
Roongruangchai, Kosol
Genetic differentiation of Anisakis species (Nematoda: Anisakidae) in marine fish Priacanthus tayenus from Gulf of Thailand
title Genetic differentiation of Anisakis species (Nematoda: Anisakidae) in marine fish Priacanthus tayenus from Gulf of Thailand
title_full Genetic differentiation of Anisakis species (Nematoda: Anisakidae) in marine fish Priacanthus tayenus from Gulf of Thailand
title_fullStr Genetic differentiation of Anisakis species (Nematoda: Anisakidae) in marine fish Priacanthus tayenus from Gulf of Thailand
title_full_unstemmed Genetic differentiation of Anisakis species (Nematoda: Anisakidae) in marine fish Priacanthus tayenus from Gulf of Thailand
title_short Genetic differentiation of Anisakis species (Nematoda: Anisakidae) in marine fish Priacanthus tayenus from Gulf of Thailand
title_sort genetic differentiation of anisakis species nematoda anisakidae in marine fish priacanthus tayenus from gulf of thailand
topic Q Science (General)
QH Natural history
R Medicine
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