2010 Fiscal Year Final Research Report
Study on coevolution of primates and their pinworms by DNA sequence analysis-From prosimians to humans-
| Project/Area Number |
20570090
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | Oita University |
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Principal Investigator |
HASEGAWA Hideo Oita University, 医学部, 教授 (00126442)
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| Co-Investigator(Kenkyū-buntansha) |
SATO Hiroshi 山口大学, 農学部, 教授 (90211945)
IKEDA Yatsukaho 大分大学, 医学部, 講師 (80363547)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 蟯虫類 / 霊長類 / 共進化 / DNA / 塩基配列 / 系統 / 線虫類 / 寄生虫 |
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| Research Abstract |
Various pinworms were collected from humans, wild and captive primates over the world. They were identified morphologically, and 18S rDNA and mtDNA Cox1 gene were sequenced. Neighbor-joining analysis based on these molecules could not depict phylogenetic tree congruent with the splitting order for prosimians and the New-World primates. However, the order of divergence the Old-world primates is congruent with that of host primates, supporting coevolution hypothesis. Three types were present in human pinworms: Type A is parasitic in Asian people; Type B in East Africans and Europeans, and also Brazilians residing in Japan; Type C has been collected from captive chimpanzees only, but is supposed to be parasitic in east African people. Phylogenetic analysis revealed that Type C split first, B and A were then diverged. It is surmised that these types were formed with dispersal of modern humans.
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Research Products
(17 results)
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[Journal Article] Necropsy case report for an old wild Japanese macaque (Macaca fusucata yakui) from Yakushima Island.2011
Author(s)
Hayakawa, S., Hernandez, A.D., Suzuki M., Sugaya, K., Koda, H, Hasegawa, H., Endo, H.
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Journal Title
Peer Reviewed
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[Journal Article] Helminths collected from imported pet murids, with special reference to concomitant infection of the golden hamster with three pinworm species of the genus Syphacia (Nematoda : Oxyuridae).2008
Author(s)
Hasegawa, H., Sato, H., Iwakiri, E., Ikeda, Y., Une, Y.
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Journal Title
Journal of Parasitology 94(3)
Pages: 752-754
Peer Reviewed
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