Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-27T13:07:10.944Z Has data issue: false hasContentIssue false

Genetically variant populations of Paragonimus proliferus Hsia & Chen, 1964 from central Vietnam

Published online by Cambridge University Press:  22 February 2012

P.N. Doanh
Affiliation:
Department of Parasitology, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, Hanoi, Vietnam Laboratory of Veterinary Parasitic Diseases, Faculty of Agriculture, University of Miyazaki, Japan
H.V. Hien
Affiliation:
Department of Parasitology, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, Hanoi, Vietnam
N. Nonaka
Affiliation:
Laboratory of Veterinary Parasitic Diseases, Faculty of Agriculture, University of Miyazaki, Japan
Y. Horii*
Affiliation:
Laboratory of Veterinary Parasitic Diseases, Faculty of Agriculture, University of 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

Among about 50 nominal Paragonimus species, Paragonimus proliferus is rather a rare species, found only in Yunnan province, China, until our recent discovery of this species in Lai Chau province, northern Vietnam close to Yunnan, China. Here we add Quang Binh province, central Vietnam as a new endemic area of P. proliferus. Large excysted metacercariae found in mountainous crabs, Potamiscus tannanti, were morphologically identified as P. proliferus, which was confirmed further by molecular analyses. Second internal transcribed spacer (ITS2) sequences of the P. proliferus population in Quang Binh province were completely (100%) identical with those of P. proliferus populations in Lai Chau province, northern Vietnam and Yunnan province, China. However, cytochrome oxidase subunit 1 (CO1) gene sequences of Quang Binh population were significantly different (5.6%) from that of previously reported northern Vietnam and Yunnan, China populations. A phylogenetic tree revealed that all CO1 sequences of P. proliferus Quang Binh population formed a distinct group, which was clustered with northern Vietnam and Yunnan, China populations with the bootstrap value of 75%. This is the first record of the genetically variant population of P. proliferus, distribution of which is geographically remote from the previously reported endemic areas in the border between northern Vietnam and Yunnan, China, suggesting that P. proliferus may be much more widely distributed in the Indochina peninsula (or South-East Asia) than expected.

Type
Research Papers
Copyright
Copyright © Cambridge University Press 2012 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Blair, D., Agatsuma, T., Watanobe, T., Okamoto, M. & Ito, A. (1997) Geographical genetic structure within the human lung fluke, Paragonimus westermani, detected from DNA sequences. Parasitology 115, 411417.CrossRefGoogle ScholarPubMed
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
Bowles, J., Blair, D. & McManus, D.P. (1995) A molecular phylogeny of the human schistosomes. Molecular Phylogenetics and Evolution 4, 103109.CrossRefGoogle ScholarPubMed
Chung, H.L., Ho, L.Y., Cheng, L.T. & Tsao, W.C. (1964) The discovery in Yunnan province of 2 new species of lung flukes – Paragonimus tuanshanensis sp. nov. and Paragonimus menglaensis sp. nov. Part I. Study on morphology and life history with discussion on possible pathogenicity to man. Chinese Medical Journal 83, 641659.Google Scholar
Doanh, P.N., Shinohara, A., Horii, Y., Habe, S., Nawa, Y., The, D.T. & Le, N.T. (2007a) Morphological and molecular identification of two Paragonimus spp., of which metacercariae 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. (2007b) Description of a new lung fluke species, Paragonimus vietnamensis sp. nov. (Trematoda: Paragonimidae), found in northern Vietnam. Parasitology Research 101, 14951501.CrossRefGoogle ScholarPubMed
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
Doanh, P.N., Shinohara, A., Horii, Y., Habe, S. & Nawa, Y. (2009a) Discovery of Paragonimus westermani in Vietnam and its molecular phylogenetic status in P. westermani complex. Parasitology Research 104, 11491155.CrossRefGoogle ScholarPubMed
Doanh, P.N., Shinohara, A., Horii, Y., Yahiro, S., Habe, S., Vannavong, N., Strobel, M., Nakamura, S. & Nawa, Y. (2009b) Morphological differences and molecular similarities between Paragonimus bangkokensis and P. harinasutai. Parasitology Research 105, 429439.CrossRefGoogle Scholar
Ho, L.Y., Chung, H.L., Chou Tsao, W.C., Zheng, L.Z. & Yang, Y. (1964) Investigations of paragonimiasis in Yunnan Province. IV. Observations on Paragonimus metacercariae in crabs in Hekou County and Xishuangbanna autonomous prefecture. Summary of Proceedings for the 30th Anniversary of China Society of Zoology. p. 67. Beijing, Science Publishing House.Google Scholar
Hsia, D.G. & Chen, H.T. (1964) A preliminary report on new species of Paragonimus proliferus sp. nov. and P. cheni Hu, 1963. Journal of Zhongshan University 2, 237238.Google Scholar
Kino, H., De, N.V., Vien, H.V., Chuyen, L.T. & Sano, M. (1995) Paragonimus heterotremus Chen et Hsia, 1964 found from a dog in Vietnam. Japanese Journal of Parasitology 44, 470472.Google Scholar
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
Thaenkham, U. & Waikagul, J. (2008) Molecular phylogenetic relationship of Paragonimus pseudoheterotremus. Southeast Asian Journal of Tropical Medicine and Public Health 39, 217221.Google 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
Yang, B.B., Zhou, B.J., Li, R.Q., Bai, Z.W., Wu, O.G. & Xiu, F. (2007) Preliminary investigation on Paragonimus in Lüchun County of Yunnan Province. Chinese Journal of Parasitology and Parasitic Diseases 25, 518519.Google Scholar
Zhou, B.J. (2004) Studies on Paragonimus proliferus. Chinese Journal of Parasitology and Parasitic Diseases 22, 109112.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