Publication: Families Opisthorchiidae and Heterophyidae: Are they distinct?
Issued Date
2012-03-01
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ISSN
18730329
13835769
13835769
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2-s2.0-82155199170
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Mahidol University
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SCOPUS
Bibliographic Citation
Parasitology International. Vol.61, No.1 (2012), 90-93
Suggested Citation
Urusa Thaenkham, David Blair, Yukifumi Nawa, Jitra Waikagul Families Opisthorchiidae and Heterophyidae: Are they distinct?. Parasitology International. Vol.61, No.1 (2012), 90-93. doi:10.1016/j.parint.2011.06.004 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/14346
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Title
Families Opisthorchiidae and Heterophyidae: Are they distinct?
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Abstract
Superfamily Opisthorchioidea Looss, 1899 consists of three well-known families, Opisthorchiidae, Heterophyidae, and Cryptogonimidae, with basic similarities in morphology and life-cycles. Many species in the first two of these families are human pathogens, such as Opisthorchis viverrini, O. felineus, Clonorchis sinensis, Haplorchis spp. and Metagonimus spp. Recently, a molecular phylogenetic study on the classification of Digenea revealed a paraphyletic relationship between Opisthorchiidae and Heterophyidae. For our study, we gathered and analyzed all available data in GenBank, together with new data of nuclear 18S ribosomal DNA and ribosomal internal transcribed spacer 2 (ITS2) sequences of the families within the Opisthorchioidea. Maximum likelihood and Bayesian inference analyses suggested that families Opisthorchiidae and Heterophyidae are inseparable from each other, with the former nested within the latter. Groupings in molecular trees are generally consistent with morphological features used in taxonomy. © 2011 Elsevier Ireland Ltd.