Publication: Systematics of the subfamily Haplorchiinae (Trematoda: Heterphyidae), based on nuclear ribosomal DNA genes and ITS2 region
Issued Date
2010-09-01
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ISSN
13835769
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2-s2.0-77955324856
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Mahidol University
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SCOPUS
Bibliographic Citation
Parasitology International. Vol.59, No.3 (2010), 460-465
Suggested Citation
Urusa Thaenkham, Paron Dekumyoy, Chalit Komalamisra, Megumi Sato, Do Trung Dung, Jitra Waikagul Systematics of the subfamily Haplorchiinae (Trematoda: Heterphyidae), based on nuclear ribosomal DNA genes and ITS2 region. Parasitology International. Vol.59, No.3 (2010), 460-465. doi:10.1016/j.parint.2010.06.009 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/29196
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Title
Systematics of the subfamily Haplorchiinae (Trematoda: Heterphyidae), based on nuclear ribosomal DNA genes and ITS2 region
Abstract
Phylogenetic relationships of 6 species in the trematode subfamily Haplorchiinae were analyzed using small and large subunit of ribosomal DNA genes (18S rDNA and 28S rDNA) and internal transcribed spacer subunit II (ITS2) region as molecular markers. Maximum Likelihood and Bayesian inference analyses of combined rDNAs and ITS2 indicated a close relationship between the genera Haplorchis and Procerovum, while these two genera were distinct from Stellantchasmus falcatus. These phylogenetic relationships were consistent with the number of testes but not with the characters of the modification of the seminal vesicle or of the ventral sucker. Although three Haplorchis spp. were, together with Procerovum, in the same cluster, their mutual topology was incongruent between rDNA and ITS2 trees. Phylogenetic analyses using other molecular markers with more species are necessary to work out solid phylogenetic relationships among the species in this subfamily. © 2010 Elsevier Ireland Ltd.