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Affinities between Asian non-human Schistosoma species, the S. indicum group, and the African human schistosomes

Published online by Cambridge University Press:  12 April 2024

T. Agatsuma*
Affiliation:
Department of Environmental Health Science, Kochi Medical School, Oko, Nankoku 783-8505, Japan
M. Iwagami
Affiliation:
Department of Environmental Health Science, Kochi Medical School, Oko, Nankoku 783-8505, Japan
C.X. Liu
Affiliation:
Department of Physiology, Faculty of Medicine, Kochi Medical School, Oko, Nankoku 783-8505, Japan
R.P.V.J. Rajapakse
Affiliation:
Department of Veterinary Para-clinical Studies, University of Peradenyia, Peradenyia, Sri Lanka
M.M.H. Mondal
Affiliation:
Department of Veterinary Medicine, Bangladesh Agriculture University, Mymensingh, Bangladesh
V. Kitikoon
Affiliation:
Department of Social and Environmental Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
S. Ambu
Affiliation:
Division of Medical Ecology, Institute for Medical Research, Kuala Lumpur, Malaysia
Y. Agatsuma
Affiliation:
Laboratory of Clinical Technology, Kochi Gakuen College, Asahi-Tenjin, Kochi 780-0955, Japan
D. Blair
Affiliation:
Department of Zoology and Tropical Ecology, James Cook University, Townsville, Queensland 4811, Australia
T. Higuchi*
Affiliation:
Department of Physiology, Faculty of Medicine, Kochi Medical School, Oko, Nankoku 783-8505, Japan
*
*Fax: +81 88 880 2535 Email: agatsuma@med.kochi-ms.ac.jp
Present address: Department of Physiology, Faculty of Medicine, Fukui Medical University, Matsuoka, Fukui 910-1193, Japan
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Abstract

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Schistosoma species have traditionally been arranged in groups based on egg morphology, geographical origins, and the genus or family of snail intermediate host. One of these groups is the ‘S. indicum group’ comprising species from Asia that use pulmonate snails as intermediate hosts. DNA sequences were obtained from the four members of this group (S. indicum, S. spindale, S. nasale and S. incognitum) to provide information concerning their phylogenetic relationships with other Asian and African species and species groups. The sequences came from the second internal transcribed spacer (ITS2) of the ribosomal gene repeat, part of the 28S ribosomal RNA gene (28S), and part of the mitochondrial cytochrome c oxidase subunit 1 (CO1) gene. Tree analyses using both distance and parsimony methods showed the S. indicum group not to be monophyletic. Schistosoma indicum, S. spindale and S. nasale were clustered among African schistosomes, while S. incognitum was placed as sister to the African species (using ITS2 and 28S nucleotide sequences and CO1 amino acid sequences), or as sister to all other species of Schistosoma (CO1 nucleotide sequences). Based on the present molecular data, a scenario for the evolution of the S. indicum group is discussed.

Type
Review Article
Copyright
Copyright © Cambridge University Press 2002

References

Agatsuma, T., Iwagami, M., Liu, C.X., Saitoh, Y., Kawanaka, M., Upatham, S., Qui, D. & Higuchi, T. (2001) Molecular phylogenetic position of S. sinensium in the genus Schistosoma . Journal of Helminthology 75, 215221.Google ScholarPubMed
Barker, S.C. & Blair, D. (1996) Molecular phylogeny of Schistosoma species supports traditional groupings within the genus. Journal of Parasitology 82, 292298.CrossRefGoogle ScholarPubMed
Blair, D., Agatsuma, T. & Watanobe, T. (1997a) Molecular evidence for the synonymy of three species of Paragonimus, P. ohirai Miyazaki, 1939, P. iloktsuenensis Chen, 1940 and P. sadoensis Miyazaki et ah, 1968. Journal of Helminthology 71, 305310.CrossRefGoogle Scholar
Blair, D., van Herwerden, L., Hirai, H., Taguchi, X., Habe, S., Hirata, M., Lai, K., Upatham, S. & Agatsuma, T. (1997b) Relationships between Schistosoma malayensis and other Asian schistosomes deduced from DNA sequences. Molecular and Biochemical Parasitology 85, 259263.CrossRefGoogle ScholarPubMed
Blair, D., Le, T.H., Després, L. & McManus, D.P. (1999) Mitochondrial genes of Schistosoma mansoni . Parasitology 119, 303313.CrossRefGoogle ScholarPubMed
Bowles, J., Hope, M., Tiu, W.U., Liu, 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
Davis, G.M. (1980) Snail hosts of Asian Schistosoma infecting man: origin and coevolution. Malacological Review Supplement 2, 195238.Google Scholar
Davis, G.M. (1992) Evolution of prosobranch snails transmitting Asian Schistosoma; coevolution with Schistosoma: a review. Progress in Clinical Parasitology 3, 145204.Google Scholar
Després, L., Imbert-Establet, D., Combes, C. & Bonhomme, F. (1992) Molecular evidence linking hominid evolution to recent radiation of schistosomes (Platyhelminthes: Trematoda). Molecular Phylogenetics and Evolution 1, 295304.CrossRefGoogle ScholarPubMed
Després, L., Kruger, F.J., Imbert-Establet, D. & Adamson, M.L. (1995) ITS2 ribosomal RNA indicates Schistosoma hippopotami is a distinct species. International Journal for Parasitology 25, 15091514.CrossRefGoogle ScholarPubMed
Higgins, D.G., Bleasby, A.J. & Fuchs, R. (1992) Improved software for multiple sequence alignment. Computer Applications in the Biosciences 8, 189191.Google ScholarPubMed
Johnston, D.A., Kane, R.A. & Rollinson, D. (1993) Small subunit (18S) ribosomal RNA gene divergence in the genus Schistosoma . Parasitology 107, 147156.CrossRefGoogle ScholarPubMed
Littlewood, D.T. & Johnston, D.A. (1995) Molecular phylogenetics of the four Schistosoma species groups determined with partial 28S ribosomal RNA gene sequences. Parasitology 111, 167175.CrossRefGoogle ScholarPubMed
Rollinson, D. & Southgate, V.R. (1987) The genus Schistosoma: a taxonomic appraisal, pp. 149 in Rollinson, D. & Simpson, A.J.G. (Eds) The biology of schistosomes from genes to latrines. London, Academic Press.Google Scholar
Snyder, S.D. & Loker, E.S. (2000) Evolutionary relationships among the Schistosomatidae (Platyhelminthes: Digenea) and an Asian origin for Schistosoma . Journal of Parasitology 86, 283288.CrossRefGoogle Scholar