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2015 Fiscal Year Annual Research Report

ミトコンドリア・色素体以外の共生オルガネラ成立過程の解明

Planned Research

Project Area"Matryoshka"-type evolution of eukaryotes
Project/Area Number 23117006
Research InstitutionUniversity of Tsukuba

Principal Investigator

稲垣 祐司  筑波大学, 生命環境系, 准教授 (50387958)

Co-Investigator(Kenkyū-buntansha) 小保方 潤一  京都府立大学, 生命環境科学研究科(系), 教授 (50185667)
神川 龍馬  京都大学, 地球環境学堂, 助教 (40627634)
Project Period (FY) 2011-04-01 – 2016-03-31
Keywordsオルガネラ進化 / ゲノム進化 / 共生 / 光合成 / 窒素固定
Outline of Annual Research Achievements

Rhopalodia科珪藻Epithemia adnataの宿主核ゲノム中にコードされた楕円体の維持・制御に関わる遺伝子を探索した。その結果、ペプチドグリカンの代謝に関連する遺伝子を同定した。当該珪藻細胞内でペプチドグリカンを保持する構造は楕円体のみであり、これら2つの遺伝子は宿主細胞が楕円体のペプチドグリカン代謝を制御している証拠であると考えらえれる。
これまでのゲノムシーケンス解析、遺伝子転写物の網羅的シーケンス解析、転写開始点解析データ等を総合し、有殻アメーバPaulinella chromatophora MYN-1株の宿主核ゲノムの概要が把握できた。ゲノムサイズは約1Gbpだと推測され、これまでのゲノムシーケンスデータのカバレッジはX137となっている。転写物データは合計41.3Gbpに達し、転写開始点解析で取得した約10億タグ(合計3.3Gbp)と併せ、ゲノム上での転写反応がどこから開始されているかの概要を十分に把握できた。現在ゲノム配列のアノテーションを行っている。アノテーションが終わり次第、そのデータをもとにシアノバクテリア共生体(有色体)の獲得に伴う宿主核ゲノム進化の全容の解明に取りかかることができる。
Rhopalodia科珪藻の楕円体を高精度で推測するためには、楕円体に直近の自由生活性シアノバクテリアのゲノムデータに基づく大規模分子系統解析が必要である。前年度までのシーケンス解析により、Cyanothece sp. NKBG520001株ゲノム中には複数種のIS配列が多数存在するため完全解読は困難であることが判明した。但し楕円体の起源を推測する系統解析には十分であり、H27年度はNKBG20001株ドラフトゲノムデータを加えた大規模分子系統解析を実施した。その結果、楕円体は淡水産のCyanothece属シアノバクテリアとの姉妹群関係が強い系統的支持のもと復元された。

Research Progress Status

27年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

27年度が最終年度であるため、記入しない。

  • Research Products

    (36 results)

All 2016 2015 Other

All Int'l Joint Research (2 results) Journal Article (12 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 9 results,  Acknowledgement Compliant: 9 results,  Open Access: 5 results) Presentation (21 results) (of which Int'l Joint Research: 12 results,  Invited: 4 results) Funded Workshop (1 results)

  • [Int'l Joint Research] Dalhousie University/University of British Columbia(Canada)

    • Country Name
      Canada
    • Counterpart Institution
      Dalhousie University/University of British Columbia
  • [Int'l Joint Research] Charles University in Prague(チェコ)

    • Country Name
      CZECH
    • Counterpart Institution
      Charles University in Prague
  • [Journal Article] Ungulate malaria parasites2016

    • Author(s)
      Templeton T, Asada M, Jiratanh M, Ishikawa SA, Tiawsirisup S, Sivakumar T, Namangala B, Takeda M, Mohkaew K, Ngamjituea S, Inoue N, Sugimoto C, Inagaki Y, Suzuki Y, Yokoyama N, Kaewthamasorn M, Kaneko O
    • Journal Title

      Scientific Reports

      Volume: 6 Pages: 23230

    • DOI

      10.1038/srep23230

    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Group II intron-mediated trans-splicing in the gene-rich mitochondrial genome of an enigmatic eukaryote, Diphylleia rotans2016

    • Author(s)
      Kamikawa R, Shiratori T, Ishida K, Miyashita H, Roger AJ
    • Journal Title

      Genome Biology and Evolution

      Volume: 8 Pages: 458-466

    • DOI

      10.1093/gbe/evw011

    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] 共生体由来オルガネラにまつわるエトセトラ2016

    • Author(s)
      稲垣祐司
    • Journal Title

      生物の科学 遺伝

      Volume: 70 Pages: 156-160

  • [Journal Article] シアノバクテリアと真核藻類の細胞統合―「窒素固定オルガネラ」へ続く道?2016

    • Author(s)
      中山卓郎,稲垣祐司
    • Journal Title

      生物の科学 遺伝

      Volume: 70 Pages: 176-180

  • [Journal Article] 光合成能力を失った種と葉緑体の進化・多様性2016

    • Author(s)
      神川龍馬
    • Journal Title

      生物の科学 遺伝

      Volume: 70 Pages: 115-120

  • [Journal Article] Multiple losses of photosynthesis in Nitzschia (Bachillariophyceae)2015

    • Author(s)
      Kamikawa R, Yubuki N, Yoshida M, Taira M, Ishida K, Leander BS, Miyashita H, Hashimoto T, Mayama S, Inagaki Y
    • Journal Title

      Phycological Research

      Volume: 63 Pages: 18-28

    • DOI

      10.1111/pre.12072

    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Plastid genome-based phylogeny pinpointed the origin of the green-colored plastid in the dinoflagellate Lepidodinium chlorophorum2015

    • Author(s)
      Kamikawa R, Tanifuji G, Kawachi M, Miyashita H, Hashimoto T, Inagaki Y
    • Journal Title

      Genome Biology and Evolution

      Volume: 7 Pages: 1133-1140

    • DOI

      10.1093/gbe/ew060

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Morphological identities of two different marine stramenopile environmental sequence clades: Bicosoeca kenaiensis (Hilliard 1971) and Cantina marsupialis (Larson and Patterson, 1990) gen. nov., comb. nov.2015

    • Author(s)
      Yubuki N, Panek T, Yabuki A, Cepicka I, Takishita K, Inagaki Y, Leander BS
    • Journal Title

      Journal of Eukaryotic Microbiology

      Volume: 62 Pages: 532-542

    • DOI

      10.1111/jeu.12207

    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] The mitochondria genomes of Kudoa species are extremely diverged among Metazoa2015

    • Author(s)
      Takeuchi F, Sekizuka T, Ogasawara Y, Yokoyama H, Kamikawa R, Inagaki Y, Nozaki T, Sugita-Konish Y, Ohnishi T, Kuroda M
    • Journal Title

      PLOS One

      Volume: 10 Pages: e30132030

    • DOI

      10.01371/journal.pone.0132030

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Multiple conversion between the genes encoding bacterial class-I release factors2015

    • Author(s)
      Ishikawa SA, Kamikawa R, Inagaki Y
    • Journal Title

      Scientific Reports

      Volume: 5 Pages: 12406

    • DOI

      10.1038/srep12406

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Proposal of a Twin-arginine translocator system-mediated constraint against loss of ATP synthase genes from nonphotosynthetic plastid genomes2015

    • Author(s)
      Kamikawa R, Tanifuji G, Ishikawa SA, Onodera NT, Ishida K, Hashimoto T, Miyashita H, Mayama S, Inagaki Y
    • Journal Title

      Molecular Biology and Evolution

      Volume: 32 Pages: 2598-2604

    • DOI

      10.1093/molbev/msv134

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Metabolic capacity of mitochondrion-related organelles in the free-living anaerobic stramenopile Cantina marsupialis2015

    • Author(s)
      Noguchi F, Shimamura S, Nakayama T, Yazaki Y, Yabuki A, Hashimoto T, Inagaki Y, Fujikura K, Takishita K
    • Journal Title

      Protist

      Volume: 32 Pages: 2598-2604

    • DOI

      10.1016/j.protis.2015.08.002

    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] フォルニカータ生物群の基部から分岐する新奇嫌気性生物PAP020株のミトコンドリア様オルガネラの代謝機能の推測2016

    • Author(s)
      矢崎裕規,白鳥峻志,久米慶太郎,橋本哲男,石田健一郎,稲垣 祐司
    • Organizer
      第85回日本寄生虫学会
    • Place of Presentation
      宮崎市民プラザ(宮崎県宮崎市)
    • Year and Date
      2016-03-19 – 2016-03-20
  • [Presentation] 非光合成性珪藻類葉緑体における機能2016

    • Author(s)
      神川龍馬,Stefan Zauner,Uwe Maier,Daniel Moog,John M Archibald,Andrew J Roger,真山茂樹,石田健一郎,宮下英明,稲垣祐司
    • Organizer
      日本藻類学会第40回大会
    • Place of Presentation
      日本歯科大学生命歯科部(東京都千代田区)
    • Year and Date
      2016-03-19 – 2016-03-20
  • [Presentation] Rhopalodia科珪藻細胞内共生体の比較ゲノム解析2016

    • Author(s)
      中山卓郎,稲垣祐司
    • Organizer
      日本藻類学会第40回大会
    • Place of Presentation
      日本歯科大学生命歯科部(東京都千代田区)
    • Year and Date
      2016-03-19 – 2016-03-20
  • [Presentation] 葉緑体を置換した渦鞭毛藻の葉緑体関連代謝系におけるEGTの傾向2016

    • Author(s)
      松尾恵梨子,稲垣祐司
    • Organizer
      日本藻類学会第40回大会
    • Place of Presentation
      日本歯科大学生命歯科部(東京都千代田区)
    • Year and Date
      2016-03-19 – 2016-03-20
  • [Presentation] 新奇ケルコゾア生物Brevimastigomonas sp. KY003株の持つ新たなミトコンドリア様オルガネラ2015

    • Author(s)
      松野佑成,石井健一郎,宮下英明,神川龍馬
    • Organizer
      第30回日本微生物生態学会
    • Place of Presentation
      土浦亀城プラザ(茨城県土浦市)
    • Year and Date
      2015-10-17 – 2015-10-20
  • [Presentation] Green alga-derived nucleomorphs in dinoflagellate cells2015

    • Author(s)
      Yuji Inagaki
    • Organizer
      2nd International Symposium on Matryoshka-type Evolution of Eukaryotic Cells
    • Place of Presentation
      筑波大学(茨城県つくば市)
    • Year and Date
      2015-09-30 – 2015-10-02
    • Int'l Joint Research / Invited
  • [Presentation] The dynamics of mitochondrial metabolism in a cercozoan capable of growth in aerobic and low-oxygen conditions2015

    • Author(s)
      Ryoma Kamikawa
    • Organizer
      2nd International Symposium on Matryoshka-type Evolution of Eukaryotic Cells
    • Place of Presentation
      筑波大学(茨城県つくば市)
    • Year and Date
      2015-09-30 – 2015-10-02
    • Int'l Joint Research
  • [Presentation] Phylogenetic analysis of a myxozoan genus Kudoa mitochondrial genomes, and the modulation of host innate immunity by Kudoa infection2015

    • Author(s)
      Fumihiko Takeuchi, Tsuyoshi Sekizuka, Yumiko Ogasawara, Hiroshi Yokoyama, Ryoma Kamikawa, Yuji Inagaki, Tomoyoshi Nozaki, Yoshiko Sugita-Konishi, Takahiro Ohnishi, Makoto Kuroda
    • Organizer
      2nd International Symposium on Matryoshka-type Evolution of Eukaryotic Cells
    • Place of Presentation
      筑波大学(茨城県つくば市)
    • Year and Date
      2015-09-30 – 2015-10-02
    • Int'l Joint Research
  • [Presentation] Convergent evolution of carbon metabolisms after loss of photosynthesis2015

    • Author(s)
      Ryoma Kamikawa, Yuji Inagaki
    • Organizer
      2nd International Symposium on Matryoshka-type Evolution of Eukaryotic Cells
    • Place of Presentation
      筑波大学(茨城県つくば市)
    • Year and Date
      2015-09-30 – 2015-10-02
    • Int'l Joint Research
  • [Presentation] Plastid genome reduction in two separate dinoflagellate lineages bearing pedinophyte-derived plastids2015

    • Author(s)
      Kounosuke Morita, Goro Tanifuji, Takuro Nakayama, Ryoma Kamikawa, Chihiro Sarai, Kazuya Takahashi, Mitsunori Iwataki, Yuji Inagaki
    • Organizer
      2nd International Symposium on Matryoshka-type Evolution of Eukaryotic Cells
    • Place of Presentation
      筑波大学(茨城県つくば市)
    • Year and Date
      2015-09-30 – 2015-10-02
    • Int'l Joint Research
  • [Presentation] Prediction and comparison of the metabolism of mitochondrion-related organelles in free-living fornicate organisms2015

    • Author(s)
      Keitaro Kume, Shun Takabayashi, Ryoma Kamikawa, Goro Tanifuji, Yuji Inagaki, Tetsuo Hashimoto
    • Organizer
      2nd International Symposium on Matryoshka-type Evolution of Eukaryotic Cells
    • Place of Presentation
      筑波大学(茨城県つくば市)
    • Year and Date
      2015-09-30 – 2015-10-02
    • Int'l Joint Research
  • [Presentation] Impact of endosymbiotic gene transfer on plastid metabolic pathways in dinoflagellates with haptophyte-derived plastids2015

    • Author(s)
      Eriko Matsuo, Yuki Nishimura, Yuji Inagaki
    • Organizer
      2nd International Symposium on Matryoshka-type Evolution of Eukaryotic Cells
    • Place of Presentation
      筑波大学(茨城県つくば市)
    • Year and Date
      2015-09-30 – 2015-10-02
    • Int'l Joint Research
  • [Presentation] フォルニカータ+パラバサリア生物群内でのミトコンドリア縮退進化2015

    • Author(s)
      髙林舜,久米慶太郎,神川龍馬,谷藤吾朗,稲垣祐司,橋本哲男
    • Organizer
      第75回日本寄生虫学会東日本支部大会
    • Place of Presentation
      順天堂大学(東京都文京区)
    • Year and Date
      2015-09-26 – 2015-09-26
  • [Presentation] Rhopalodia科珪藻における細胞内共生シアノバクテリアのゲノム縮小進化2015

    • Author(s)
      中山卓郎,神川龍馬,谷藤吾朗,稲垣祐司
    • Organizer
      日本植物学会第79回大会
    • Place of Presentation
      朱鷺メッセ・新潟コンベンションセンター(新潟県新潟市)
    • Year and Date
      2015-09-06 – 2015-09-08
  • [Presentation] Comparative genome analysis of pedinophyte plastids and the pedinophyte-derived plastids in two dinoflagellates Lepidodinium chlorophorum and strain MRD-1512015

    • Author(s)
      Kounosuke Morita, Goro Tanifuji, Takuro Nakayama, Ryoma Kamikawa, Chihiro Sarai, Kazuya Takahashi, Mitsunori Iwataki, Yuji Inagaki
    • Organizer
      VII ECOP-ISOP Joint Meeting 2015
    • Place of Presentation
      Hotel-Conterence Center Sylken Al-Andalus Palace & the "Reina Mercedes" Scientific Campus of the University of Seville, Seville, Spain
    • Year and Date
      2015-09-05 – 2015-09-10
    • Int'l Joint Research
  • [Presentation] Strain PAP020, a novel anaerobic microeukaryote branching at the base of Fornicata2015

    • Author(s)
      Euki Yazaki,Takashi Shiratori,Keitaro Kume,Tetsuo Hashimoto,Ken-Ichiro Ishida,Yuji Inagaki
    • Organizer
      VII ECOP-ISOP Joint Meeting 2015
    • Place of Presentation
      Hotel-Conterence Center Sylken Al-Andalus Palace & the "Reina Mercedes" Scientific Campus of the University of Seville, Seville, Spain
    • Year and Date
      2015-09-05 – 2015-09-10
    • Int'l Joint Research
  • [Presentation] The dynamics of mitochondrial metabolism .in a cercozoan capable of growth in aerobic and low-oxygen conditions2015

    • Author(s)
      Ryoma Kamikawa
    • Organizer
      VII ECOP-ISOP Joint Meeting 2015
    • Place of Presentation
      Hotel-Conterence Center Sylken Al-Andalus Palace & the "Reina Mercedes" Scientific Campus of the University of Seville, Seville, Spain
    • Year and Date
      2015-09-05 – 2015-09-10
    • Int'l Joint Research / Invited
  • [Presentation] ヌクレオモルフをもつ2種の未記載渦鞭毛藻:「真核-真核型」細胞内共生を介した葉緑体成立過程を解き明かす新たなモデルとして2015

    • Author(s)
      皿井千裕,谷藤吾朗,中山卓郎,神川龍馬,高橋和也,石田健一郎,岩滝光儀,稲垣祐司
    • Organizer
      日本進化学会第17回大会
    • Place of Presentation
      中央大学後楽園キャンパス(東京都文京区)
    • Year and Date
      2015-08-20 – 2015-08-23
    • Invited
  • [Presentation] トランスクリプトームデータを基盤とした大規模分子系統解析による新奇嫌気性真核微生物PAP020株の系統的位置の解明2015

    • Author(s)
      矢﨑裕規,白鳥隆志,久米慶太郎,橋本 哲男,石田健一郎,稲垣祐司
    • Organizer
      日本進化学会第17回大会
    • Place of Presentation
      中央大学後楽園キャンパス(東京都文京区)
    • Year and Date
      2015-08-20 – 2015-08-23
  • [Presentation] Is a microaerophilic flagellate strain PAP020 is the most basal member of the Fornicata?2015

    • Author(s)
      Euki Yazaki, Takashi Shiratori, Keitaro Kume, Sohta Ishikawa, Ken-Ichiro Ishida, Tetsuo Hashimoto, Yuji Inagaki
    • Organizer
      Integrated Microbial Biodiversity Program meeting, Canadian Institute for Advanced Research
    • Place of Presentation
      Westin Moutain Bear Resort, Victoria, Canada
    • Year and Date
      2015-05-27 – 2015-05-29
    • Int'l Joint Research
  • [Presentation] Two cercozoans from low-oxygen environments reveal the early stages of mitochondrial adaptation to anaerobiosis2015

    • Author(s)
      Ryoma Kamikawa
    • Organizer
      Integrated Microbial Biodiversity Program meeting, Canadian Institute for Advanced Research
    • Place of Presentation
      Westin Moutain Bear Resort, Victoria, Canada
    • Year and Date
      2015-05-27 – 2015-05-29
    • Int'l Joint Research / Invited
  • [Funded Workshop] 2nd International Symposium on Matryoshka-type Evolution of Eukaryotic Cells2015

    • Place of Presentation
      筑波大学大学会館国際会議場(茨城県つくば市)
    • Year and Date
      2015-09-30 – 2015-10-02

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Published: 2017-01-06   Modified: 2022-02-01  

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