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Evolution of Urochordates inferred from mitochondrial genome structure and mitochondrial genetic code decoding system

Research Project

Project/Area Number 15K07198
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Biodiversity/Systematics
Research InstitutionTokyo University of Pharmacy and Life Science

Principal Investigator

Yokobori Shin-ichi  東京薬科大学, 生命科学部, 講師 (40291702)

Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywordsオタマボヤ綱 / ミトコンドリアゲノム / tRNA / rRNA / 分子系統解析 / 尾索動物 / オタマボヤ / ホソサイヅチボヤ / 遺伝子構造
Outline of Final Research Achievements

Molecular phylogenetic analyses of Urochordates based on the evolution of urochordate mitochondrial genetic system were performed. Appendicularian mitochondrial genomes were targets for the sequencing determination in this study. However, no tRNA and rRNA genes were found on the appendicularian mitochondrial genome sequences determined. In addition, we performed molecular phylogenetic analysis based on the mitochondrial protein gene sequences with Bayesian method under the CAT model. Appendicularians appeared to form monophyletic group with Enterogonan ascidians, although fast-evolving appendicularians and sales (Thaliacea, Salpida) tend to form a group in molecular phylogenetic trees (long branch attrition). Furthermore, the expression of Holocynthia roretzi (Ascidiacea, Enterogona) mitochondrial tRNAs had been analyzed by synthesizing cDNAs of these tRNAs.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (11 results)

All 2017 2016 2015

All Journal Article (1 results) Presentation (10 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] 翻訳系の誕生と初期進化2016

    • Author(s)
      横堀伸一
    • Journal Title

      細胞工学

      Volume: 35 Pages: 116-123

    • Related Report
      2015 Research-status Report
  • [Presentation] 尾索動物オタマボヤ網ミトコンドリアゲノムの進化2017

    • Author(s)
      横堀伸一、笠原享祐、大塚玄航、西野敦雄、小沼健、西田宏紀、山岸明彦
    • Organizer
      日本進化学会第19回大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 18SrRNA遺伝子並びにミトコンドリアゲノムに基づくオタマボヤ綱の分子系統解析2017

    • Author(s)
      横堀伸一、笠原享祐、大塚玄航、西野敦雄、小沼健、西田宏紀、山岸明彦
    • Organizer
      日本動物学会第88回大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 遺伝暗号の多様性とその進化2017

    • Author(s)
      29.横堀伸一
    • Organizer
      2017年生命の起原および進化学会&日本アストロバイオロジーネットワーク夏の学校
    • Related Report
      2017 Annual Research Report
  • [Presentation] Molecular phylogenetic analysis of Fritillariidae (Appendicularia, Urochordata) based on the 18S rRNA gene sequence and mitochondrial genome of Fritillaria haplostoma.2016

    • Author(s)
      Yokobori, S., A. Yamagishi, & A. Nishino
    • Organizer
      ICZ/ZSJ joint meeting (The 22nd International Congress of Zoology & The 87th Meeting of Zoological Society of Japan)
    • Place of Presentation
      恩納村、宜野湾(
    • Year and Date
      2016-11-14
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 尾索動物の分子系統解析とアミノアシルtRNA合成酵素、tRNAの解析2016

    • Author(s)
      横堀伸一
    • Organizer
      2016年度ホヤの研究会
    • Place of Presentation
      豊中(大阪大学豊中キャンパス)
    • Year and Date
      2016-10-14
    • Related Report
      2016 Research-status Report
  • [Presentation] 尾索動物Rhopalaea sp. ミトコンドリアゲノムの解析に基づく尾索動物とそのミトコンドリアゲノムの進化。2016

    • Author(s)
      横堀伸一、広瀬裕一、倉林敦、山岸明彦
    • Organizer
      日本進化学会第18回大会
    • Place of Presentation
      東京(東京工業大学大岡山キャンパス)
    • Year and Date
      2016-08-25
    • Related Report
      2016 Research-status Report
  • [Presentation] アミノアシル tRNA 合成酵素の分子系統解析からみた真核生物の起源とその系統学的位置2015

    • Author(s)
      古川龍太郎、横堀伸一、中川穂、黒柳拓也、山岸明彦
    • Organizer
      第 16 回極限環境生物学会年会
    • Place of Presentation
      品川
    • Year and Date
      2015-11-09
    • Related Report
      2015 Research-status Report
  • [Presentation] 尾索動物Fritillaria haplostomaミトコンドリアゲノム構造2015

    • Author(s)
      横堀伸一、山岸明彦、西野敦
    • Organizer
      第86回日本動物学会年会
    • Place of Presentation
      新潟
    • Year and Date
      2015-09-17
    • Related Report
      2015 Research-status Report
  • [Presentation] 後生動物ミトコンドリア遺伝暗号からみた遺伝暗号の進化2015

    • Author(s)
      横堀伸一、渡辺公綱
    • Organizer
      第17回日本進化学会大会
    • Place of Presentation
      東京
    • Year and Date
      2015-08-21
    • Related Report
      2015 Research-status Report
  • [Presentation] アミノアシルtRNA合成酵素の分子系統樹から見た真核生物の起源 (Origin of Eukarya based on phylogenetic trees of aminoacyl-tRNA synthetase)2015

    • Author(s)
      古川龍太郎、横堀伸一、山岸明彦
    • Organizer
      地球惑星連合2015年大会
    • Place of Presentation
      幕張。
    • Year and Date
      2015-05-27
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2019-03-29  

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