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Studies on speciation of Asian schistosomes

Research Project

Project/Area Number 05041098
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionField Research
Research InstitutionObihiro University of Agriculture and Veterinary Medicine (1994)
Kochi Medical School (1993)

Principal Investigator

AGATSUMA Takeshi  Obihiro University of Agriculture and Veterinary Medicine, 畜産学部, 助教授 (40117031)

Co-Investigator(Kenkyū-buntansha) ウォン Z.  湖北省, 住血吸虫防圧研究所, 所長
ブレーラー D.  ジェームズ, クック大学・理学部, 講師
ロー C.T.  台湾国立陽明医学院, 医学部, 助教授
イトイ I.  マレーシア国立医学研究所, 寄生虫部, 主任研究官
ウパタム S.  マヒドール大学, 理学部, 教授
SUGIYAMA Hiromu  National Institute of Health, 寄生動物部, 主任研究官 (00145822)
TAGUCHI Takahiro  Kochi Medical School, 医学部, 助手 (80127943)
HIRAI Hirohisa  Kyoto University, 霊長類研究所, 助手 (10128308)
KAWANAKA Masanori  National Institute of Health, 寄生動物部, 室長 (50109964)
HABE Shigehisa  Fukuoka University, 医学部, 講師 (70037430)
HIRATA Mizuki  Kurume University, 医学部, 助教授 (70080629)
BLAIR David  James Cook University
LO Chin-tson  National Yang-Ming Medical College
ITHOI Init  Institute for Medical Research
UPATHAM Suchart  Mahidol University
WANG Zaihua  Hubei Institute of Schistosomiasis Control
Project Period (FY) 1993 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥15,000,000 (Direct Cost: ¥15,000,000)
Fiscal Year 1994: ¥7,500,000 (Direct Cost: ¥7,500,000)
Fiscal Year 1993: ¥7,500,000 (Direct Cost: ¥7,500,000)
KeywordsPhylogeny / Schistosoma japonicum / S.mekongi / S.malaynsis / Mitochondrial DNA / PCR / C-bannding pattern / Chiasma / Karyotype
Research Abstract

Phylogeny among Asian Schistosoma flukes have not been known so far. In the present study, PCR technique was used to make up a molecular phylogeny on three Asian Schistosoma species, S.japonicum, S.mekongi, and S.malaynsis. A region of cytochrome C oxidase subunit I (COI) was amplified, and the fragment was cloned into TA-vector. The ABI sequencer/the Dye primer method were used. In total, 395 base pairs were sequenced, and analyzed with Paup (Maximum Parsimony Method) and Clustal V (The Neighbor-Joining Method). As outgroups, two African species, S.mansoni and S.haematobium were used. Both of the two methods constructed the same phylogenetic trees. That is, S.mekongi and S.malaynsis was clustered first, and joined with S.japonicum. The two African species were joined into a cluster, and bound with the Asian species.
C-banding pattern analysis of the chromosomes was also performed The pattern showed closer relationships between S.mekongi and S.malaynsis, supporting the molecular phylogenetic tree obtained in this study. Karyotypic analysis of the snail host species, Robertsiella gismani, Neotricula aperta, and Oncomelania nosophora were carried out. It was found that chromosome numbers were all 2n=34, but sex chromosomes seem to be of XY type and XO type for Robertsiella gismani and Neotricula aperta, respectively. In the case of Oncomelania nosophora, no sex chromosome differenciation occurred.
Infection experiments were also carried out. Three Japanese snails, Oncomelania nosophora, O.minima and Bythinella nipponica were used. It was found that only Oncomelania nosophora was susceptible to S.japonicum and S.malaynsis infection.

Report

(1 results)
  • 1994 Final Research Report Summary
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] 吾妻健、柳从笑、田口尚弘、松岡未央、平井啓久、波部重久、平田瑞城、K.ライ: "ミトコンドリアDNAから見たマレーシア住血吸虫と日本住血吸虫の系統類縁関係" 寄生虫学雑誌. 43(Suppl.). 86 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 吾妻健、柳从笑、田口尚弘、平井啓久、波部重久、平田瑞城、K.ライ、S.ウパタム: "ミトコンドリアDNAから見たアジア産日本住血吸虫類の系統類縁関係" 第41回日本寄生虫学会、日本衛生動物学会北日本支部合同大会講演要旨. 18 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 吾妻健、柳从笑、田口尚弘、平井啓久、波部重久、平田瑞城、川中正憲、K.ライ、S.ウパタム: "ミトコンドリアDNAから見た、東南アジアにおける日本住血吸虫species complexの系統類縁関係" 寄生虫学雑誌. 44(Suppl.). 128 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 田口尚弘、平井啓久、波部重久、平田瑞城、川中正憲、K.Lai,E.S.ウパタム、吾妻健: "アジア産日本住血吸虫類中間宿主貝における核型とY染色体の分化" 寄生虫学雑誌. 44(Suppl.). 127 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 平井啓久、田口尚弘、波部重久、平田瑞城、川中正憲、K.ライ、S.ウパタム、吾妻健: "C-バンドパターンから見た東南アジアにおける日本住血吸虫Species complexの系統類縁関係" 寄生虫学雑誌. 44(Suppl.). 127 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Agatsuma T., Liu C.X., Taguchi T., Matsuoka M., Hirai H., Habe S., Hirata M.& Lai K.: "Phylogenetic relationship between Malaysian and Japanese Schistosoma species from a view point of mitochondrial DNA sequences" Japanese Journal of Parasitology. 43 (Suppl.). 86- (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Agatsuma T., Liu C.X., Taguchi T., Hirai H., Habe S., Hirata M., Kawanaka M., Lai K.& Upatham E.S.: "Phylogenetic relationship of the Asian Schistosoma japonicum complex from a viewpoint of mitochondrial DNA" Japanese Journal of Parasitology. 44 (Suppl.). 128- (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Taguchi T., Hirai H., Habe S., Hirata M., Kawanaka M., Lai K., Upatham E.S.& Agatsuma T.: "Comparative karyotype study of snail hosts of Oriental schistosomes" Japanese Journal of Parasitology. 44 (Suppl.). 127- (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Hirai H., Taguchi T., Habe S., Hirata M., Kawanaka M., Lai K., Upatham E.S.& Agatsuma T.: "Phylogenetic relationship between Malaysian and Japanese Schistosoma species from a viewpoint of C-banding pattern" Japanese Journal of Parasitology. 44 (Suppl.). 127- (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary

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Published: 1993-04-01   Modified: 2016-04-21  

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