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Discovery of Paragonimus skrjabini in Vietnam and its phylogenetic status in the Paragonimus skrjabini complex

Published online by Cambridge University Press:  16 October 2012

P.N. Doanh
Affiliation:
Department of Parasitology, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, Hanoi, Viet Nam
H.V. Hien
Affiliation:
Department of Parasitology, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, Hanoi, Viet Nam
N. Nonaka
Affiliation:
Laboratory of Veterinary Parasitic Diseases, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
Y. Horii*
Affiliation:
Laboratory of Veterinary Parasitic Diseases, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
Y. Nawa
Affiliation:
Research Affairs Division, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
*
*Fax: +81-0985–58-7276 E-mail: [email protected]

Abstract

Two members of the Paragonimus skrjabini complex, P. skrjabini and P. miyazakii, are now considered as two sub-species, P. skrjabini skrjabini and P. skrjabini miyazakii. They are well known as important pathogens for human paragonimiasis in China and Japan. Recently, members of this species complex have been reported from India. Here we report the first discovery of P. skrjabini from freshwater crab hosts in Thanh Hoa province, Vietnam. For morphological and molecular phylogenetic studies, adult worms were obtained by experimental infection in cats and dogs. Molecular analyses of metacercariae and adults revealed that the P. skrjabini population from Thanh Hoa, Vietnam was almost completely identical with that from Yunnan province, China. Those populations from Thanh Hoa, Vietnam and Yunnan, China and those from Manipur, India were significantly different from P. skrjabini populations reported from other localities of China in cytochrome oxidase subunit 1 (CO1) gene sequences, indicating considerable genetic variation within the P. skrjabini complex. Moreover, low bootstrap values in the CO1 tree suggested that more variant genotypes belonging to P. skrjabini complex may be found in other Asian countries in between Vietnam and India, such as Myanmar, Laos and Thailand. Since P. skrjabini is known as a pathogen for humans, paragonimiasis cases caused by P. skrjabini might be found in Vietnam and other Asian countries.

Type
Research Papers
Copyright
Copyright © Cambridge University Press 2012 

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References

Blair, D., Xu, Z.B. & Agatsuma, T. (1999) Paragonimiasis and the genus Paragonimus. Advances in Parasitology 42, 113222.CrossRefGoogle ScholarPubMed
Blair, D., Chang, Z., Chen, M., Cui, A., Wu, B., Agatsuma, T., Iwagami, M., Corrlis, D., Fu, C. & Zhan, X. (2005) Paragonimus skrjabini Chen, 1959 (Digenea: Paragonimidae) and related species in eastern Asia: a combined molecular and morphological approach to identification and taxonomy. Systematic Parasitology 60, 121.CrossRefGoogle ScholarPubMed
Blair, D., Agatsuma, T. & Wang, W. (2007) Paragonimiasis. pp. 117150in Murrell, K.D. & Fried, B. (Eds) World class parasites. Vol. 11, Food-borne parasitic zoonoses. New York, Springer.CrossRefGoogle Scholar
Bowles, J., Hope, M., Tiu, W.U., Liu, S.X. & McManus, D.P. (1993) Nuclear and mitochondrial genetic markers highly conserved between Chinese and Philippine Schistosoma japonicum. Acta Tropica 55, 217229.CrossRefGoogle ScholarPubMed
Bowles, J., Blair, D. & McManus, D.P. (1995) A molecular phylogeny of the human schistosomes. Molecular Phylogenetics and Evolution 4, 103109.CrossRefGoogle ScholarPubMed
Chen, H.T. (1964) The Chinese species of paragonimid trematodes, their phylogenetic relationship and faunal distribution. Acta Parasitologica Sinica 1, 5368(in Chinese, English abstract).Google Scholar
Doanh, P.N., Shinohara, A., Horii, Y., Habe, S., Nawa, Y., The, D.T. & Le, N.T. (2007) Morphological and molecular identification of two Paragonimus spp., of which metacercariae were concurrently found in a land crab, Potamiscus tannanti, collected in Yenbai Province, Vietnam. Parasitology Research 100, 10751082.CrossRefGoogle Scholar
Doanh, P.N., Shinohara, A., Horii, Y., Habe, S., Nawa, Y. & Le, N.T. (2008) Discovery of Paragonimus proliferus in northern Vietnam and their molecular phylogenetic status among genus Paragonimus. Parasitology Research 102, 677683.CrossRefGoogle ScholarPubMed
Miyazaki, I. (1991) An illustrated book of helminthic zoonoses. 1st edn.Tokyo, International Medical Foundation of Japan.Google Scholar
Nawa, Y. & Doanh, P.N. (2009) Paragonimus bangkokensis and P. harinasutai: reappraisal of phylogenetic status. Journal of Tropical Medicine and Parasitology 32, 8796.Google Scholar
Nishida, H. (1989) Distribution and biology of Paragonimus in Japan. pp. 2637in Vemoto, G. & Wada, Y. (Eds) Biogeography of infectious disease – distribution and speciation of infectious agent and insect vector. Tokyo, Tokai University Press.Google Scholar
Singh, T.S. (2002) Occurrence of the lung fluke Paragonimus hueit'ungensis in Manipur, India. Chinese Medical Journal 65, 426429.Google ScholarPubMed
Singh, T.S., Singh, Y.I. & Singh, Kh.N. (1998) A case of paragonimiasis in a civet cat with a new Paragonimus sub-species in Manipur, India. Indian Journal of Pathology and Microbiology 41, 351353.Google Scholar
Singh, T.S., Singh, I.D. & Sugiyama, H. (2006) Possible discovery of Chinese lung fluke, Paragonimus skrjabini in Manipur, India. Southeast Asian Journal of Tropical Medicine and Public Health 37, 5356.Google ScholarPubMed
Tamura, K., Peterson, D., Peterson, N., Stecher, G., Nei, M. & Kumar, S. (2011) MEGA5: molecular evolutionary genetics analysis using maximum likelihood, evolutionary distance, and maximum parsimony methods. Molecular Biology and Evolution 28, 27312739.CrossRefGoogle ScholarPubMed
Thompson, J.D., Higgins, D.G. & Gibson, T.J. (1994) CLUSTAL-W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choice. Nucleic Acids Research 22, 46734680.CrossRefGoogle ScholarPubMed
Waikagul, J. & Yoonuan, T. (2005) Paragonimus and paragonimiasis in Thailand. pp. 139148in Arizono, N., Chai, J.Y., Nawa, Y. & Takahashi, Y. (Eds) Asian parasitology. Vol. 1, Foodborne helminthiasis in Asia. Japan, Foundation of Asian Parasitologists Journal Ltd.Google Scholar
Zhou, B.J., Yang, B.B., Doanh, P.N., Yang, Z.Q., Xiang, Z., Li, C.Y., Shinohara, A., Horii, Y. & Nawa, Y. (2008) Sequence analyses of ITS2 and CO1 genes of Paragonimus proliferus obtained in Yunnan province, China and their similarities with those of P. hokuoensis. Parasitology Research 102, 13791383.CrossRefGoogle ScholarPubMed