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Cephalochordate molecular phylogenetics covering most species unravels its species richness and detailed evolutionary pathway

Research Project

Project/Area Number 21370034
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biodiversity/Systematics
Research InstitutionToho University

Principal Investigator

NISHIKAWA Teruaki  東邦大学, 理学部, 教授 (50126885)

Co-Investigator(Kenkyū-buntansha) NISHIDA Mutsumi  東京大学, 大気海洋研究所, 教授 (90136896)
Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2010: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2009: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Keywordsナメクジウオ / 分子系統解析 / supermatrix法 / 隠蔽種 / ナメクジウオ属 / オナガナメクジウオ属 / カタナメクジウオ属 / オナカナメクジウオ属 / 系統地理学 / supermaterix法
Research Abstract

As the final stage of our long-standing "cephalochordate phylogeny project", the previous and present studies have given robust phylograms for each of the all 3 genera using the whole mitogenomes. Further, the supermatrix analysis has discovered 9 cryptic species. This means that our material of ca. 45 populations over the world contained 31 species of 3 genera in all in terms of molecular phylogenetics, attaining to 80% of the cephalochordate species. Thus, we have got information enough for a total understanding of its evolutionary pathway and for a far better understanding of its species richness.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (5 results)

All 2011 2009 Other

All Presentation (4 results) Remarks (1 results)

  • [Presentation] カタナメクジウオ属Epigonichthys(頭索動物亜門)の分子系統解析と琉球列島からの日本初記録種発見2011

    • Author(s)
      昆健志・西田睦・西川輝昭
    • Organizer
      沖縄生物学会第48回大会
    • Place of Presentation
      琉球大学西原キャンパス、沖縄県、日本
    • Related Report
      2011 Final Research Report
  • [Presentation] カタナメクジウオ属Epigonichthys(頭索動物亜門)の分子系統解析と琉球列島からの日本初記録種発見2011

    • Author(s)
      昆健志, 西田睦, 西川輝昭
    • Organizer
      沖縄生物学会第48回大会
    • Place of Presentation
      琉球大学西原キャンパス(沖縄県)
    • Related Report
      2011 Annual Research Report
  • [Presentation] Molecular phylogeny and diversity of the lancelet genus Branchiostoma based on the whole mitochondrial DNA sequencing and supermatrix analysis2009

    • Author(s)
      Kon, T., Yamanoue, Y., Nishida, M., Nishikawa, T
    • Organizer
      International Symposium of Marine Genomics
    • Place of Presentation
      Naha, Okinawa, Japan
    • Related Report
      2011 Final Research Report
  • [Presentation] Molecular phylogeny and diversity of the lancelet genus Branchiostoma based on the whole mitochondrial DNA sequencing and supermatrix analysis2009

    • Author(s)
      Kon, T., Yamanoue, Y., Nishida, M., Nishikawa, T.
    • Organizer
      International Symposium of Marine Genomics
    • Place of Presentation
      沖縄県那覇市
    • Related Report
      2009 Annual Research Report
  • [Remarks]

    • URL

      http://www.lab.toho-u.ac.jp/sci/bio/tax/index.html

    • Related Report
      2011 Final Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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