Families Opisthorchiidae and Heterophyidae: are they distinct?

Thaenkham, Urusa, Blair, David, Nawa, Yukifumi, and Waikagul, Jitra (2012) Families Opisthorchiidae and Heterophyidae: are they distinct? Parasitology International, 61 (1). pp. 90-93.

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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 185 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.

Item ID: 22222
Item Type: Article (Refereed Research - C1)
Keywords: phylogenetic relationship, Opisthorchiidae, Heterophyidae, 18S rDNA, ITS2
ISSN: 1383-5769
Date Deposited: 28 Jun 2012 16:16
FoR Codes: 06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology > 060309 Phylogeny and Comparative Analysis @ 100%
SEO Codes: 92 HEALTH > 9201 Clinical Health (Organs, Diseases and Abnormal Conditions) > 920120 Zoonoses @ 100%
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