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2012 Fiscal Year Final Research Report

Effects of phylogenetics and hybridization of Semisulcospira snailsendemictoLake Biwa on tolerance fortrematodes

Research Project

  • PDF
Project/Area Number 22570025
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Ecology/Environment
Research InstitutionThe University of Shiga Prefecture

Principal Investigator

URABE Misako  滋賀県立大学, 環境科学部, 教授 (50263421)

Co-Investigator(Kenkyū-buntansha) AGATSUMA Takeshi  高知大学, 医学部, 教授 (40117031)
Project Period (FY) 2010 – 2012
Keywords寄生 / 宿主特異性 / 地理的分化 / 分子系統
Research Abstract

Some species of trematodes genus Genarchopsis, which uses Semisulcospira snails as the first intermediate hosts, were analyzed phylogenetically. The result showed that a strain of Genarchopsis(G. gigi) is endemic to Lake Biwa and diverged from other clades in relatively earlier era. This suggests that G. gigi adapts to some endemic snail species in Lake Biwa, and other species including G. goppo adapts to non-endemic species. We also developed a new molecular marker (the introns of phosphogenkinase 1 gene) for the phylogenetic analysis of host snails.Two individuals of Semisulcospira habei (usually tolerant to G. goppo and susceptible to G. gigi), which were suggested as hybrids of S. decipiens (susceptible to G. goppo) by the analysis of the ITS-1, were susceptible both to G. gigi and G. goppo. Our result suggests that interspecific hybridization affects trematode susceptibilityof snails, butmore data need to be compiled to demonstrate it.

  • Research Products

    (4 results)

All 2012 2011

All Journal Article (1 results) Presentation (3 results)

  • [Journal Article] Taxonomic revision of three species of the genus Genarchopsis (Digenea: Hemiuroidea: Derogenidae) in Japan by molecular phylogenetic analyses2012

    • Author(s)
      Urabe, M., Nishimura, T. and Shimazu, T.
    • Journal Title

      Parasitology International

      Volume: 61 Pages: 554-560

  • [Presentation] Genarchopsis 属の分子系統と地理的変異2012

    • Author(s)
      浦部美佐子・西村龍彦・佐谷友貴・嶋津武日本産
    • Organizer
      第81回日本寄生虫学会
    • Year and Date
      2012-03-24
  • [Presentation] 日本における魚類寄生虫 Genarchopsis goppo の地理的分化と宿主特異性2011

    • Author(s)
      西村龍彦・浦部美佐子・嶋津武
    • Organizer
      第58回日本生態学会
    • Year and Date
      2011-03-11
  • [Presentation] 琵琶湖固有カワニナ類の遺伝的分化と吸虫感染耐性2011

    • Author(s)
      浦部美佐子
    • Organizer
      第58回日本生態学会
    • Year and Date
      2011-03-09

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Published: 2014-08-29  

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