Phylogenetic studies for construction of a new concept of the kingdom Plantae and a new taxonomic system of the eukaryotes

• Project/Area Number: 21657024
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Single-year Grants
• Research Field: Biodiversity/Systematics
• Research Institution: The University of Tokyo
• Principal Investigator: NOZAKI Hisayoshi 東京大学, 大学院・理学系研究科, 准教授 (40250104)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥3,350,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥150,000); Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2010: ¥2,200,000 (Direct Cost: ¥2,200,000); Fiscal Year 2009: ¥500,000 (Direct Cost: ¥500,000)
• Keywords: 大系統 / 大分類 / 植物界 / 色素体一次共生 / 色素体二次共生 / 細胞内共生的遺伝子水平伝達

Research Abstract

Based on the re-examinations and re-analyses of the sequence data previously used for macrophylogeny of eukaryotes as well as on the construction of EST data from the free-living, plastid-lacking euglenoid Peranema, it was suggested that the fast evolving genes from intracellular endoparasites, ciliates etc. may have mislead the nonmonophyly of the primary phototrophs. Since our nuclear genome analyses also demonstrated the possible cryptic secondary or tertiary endosymbiosis of a red alga before the secondary endosymbiosis of a green alga in Chlorarachniophyta or Euglenophyta, respectively, the concept of the secondary phototrophs is now renewing.

Research Products

• [Journal Article] Anextended phylogenetic analysis revealsancient origin of "non-green"phosphoribulokinase genes from twolineages of "green" secondaryphotosynthetic eukaryotes: Euglenophyta and Chlorarachniophyta (2011)
  • Author(s): Yang, Y., Maruyama, S., Sekimoto, H.,Sakayama, H. & Nozaki, H
  • Journal Title: BMC Research Notes Volume: 4 Issue: 1 Pages: 330-330
  • DOI: 10.1186/1756-0500-4-330
  • Peer Reviewed
• [Journal Article] Eukaryote-to-eukaryote gene transfergives rise to genome mosaicism in euglenids (2011)
  • Author(s): Maruyama, S., Suzaki, T., Weber, A. P. M.,Archibald, J. M. & Nozaki, H
  • Journal Title: BMC Evol. Biol. Volume: 11 Issue: 1 Pages: 105-105
  • DOI: 10.1186/1471-2148-11-105
  • Peer Reviewed
• [Journal Article] Aquatic plant speciation affected by diversifying selection of organelle DNA regions (2011)
  • Author(s): Kato, S., Misawa, K., Takahashi, F., Sakayama, H., Sano, S., Kosuge, K., Kasai, F., Watanabe, M., Tanaka, J. & Nozaki, H.
  • Journal Title: J. Phycol. Volume: 47 Issue: 5 Pages: 999-1008
  • DOI: 10.1111/j.1529-8817.2011.01037.x
  • Peer Reviewed
• [Journal Article] Evolutionaryanalyses of the nuclear-encoded photosynthetic gene psbO from tertiary plastid-containing algae in Dinophyta (2011)
  • Author(s): Yokoyama, A., Takahashi, F., Kataoka, H.,Hara, Y. & Nozaki, H.
  • Journal Title: J. Phycol. Volume: 47 Issue: 2 Pages: 407-414
  • DOI: 10.1111/j.1529-8817.2011.00961.x
  • Peer Reviewed
• [Journal Article] Evolutionary analyses of the nuclear-encoded photosynthetic gene psbO from tertiary plastid-containing algae in Dinophyta (2011)
  • Author(s): Yokoyama, A.
  • Journal Title: J.Phycol. Volume: 47 Pages: 407-414
  • Peer Reviewed
• [Journal Article] Horizontal gene transfer by the parasitic plant Striga hermonthica (2010)
  • Author(s): Yoshida, S., Maruyama, S., Nozaki, H.. &Shirasu, K
  • Journal Title: Science Volume: 328 Issue: 5982 Pages: 1128-1128
  • DOI: 10.1126/science.1187145
  • Peer Reviewed
• [Journal Article] Permuted tRNAgenes in the nuclear and nucleomorphgenomes of photosynthetic eukaryotes (2010)
  • Author(s): Maruyama, S., Junichi Sugahara, J., Kanai,A. & Nozaki, H
  • Journal Title: Mol. Biol. Evol Volume: 27 Issue: 5 Pages: 1070-1076
  • DOI: 10.1093/molbev/msp313
  • Peer Reviewed
• [Journal Article] Permuted tRNA genes in the nuclear and nucleomorph genomes of photosynthetic eukaryotes (2010)
  • Author(s): Maruyama, S.
  • Journal Title: Mol.Biol.Evol. Volume: 27 Pages: 1070-1076
  • Peer Reviewed
• [Journal Article] Horizontal gene transfer by the parasitic plant Striga hermonthica (2010)
  • Author(s): Yoshida, S.
  • Journal Title: Science Volume: 328 Pages: 112-112
  • Peer Reviewed
• [Journal Article] Distribution and phylogeny of theblue-light receptors aureochromes ineukaryotes (2009)
  • Author(s): Ishikawa, M., Takahashi, F., Nozaki, H.,Nagasato, C., Motomura, T. & Kataoka, H
  • Journal Title: Planta 230 Volume: 230 Issue: 3 Pages: 543-552
  • DOI: 10.1007/s00425-009-0967-6
  • Peer Reviewed
• [Journal Article] Phylogenetic positions of Glaucophyta,green plants (Archaeplastida) andHaptophyta (Chromalveolata) as deducedfrom slowly evolving nuclear genes (2009)
  • Author(s): Nozaki, H., Maruyama, S., Matsuzaki, M.,Nakada, T., Kato, S. & Misawa, K
  • Journal Title: Mol.Phylog. Evol Volume: 53 Issue: 3 Pages: 872-880
  • DOI: 10.1016/j.ympev.2009.08.015
  • Peer Reviewed
• [Journal Article] Cyanobacterialcontribution to the genomes of theplastid-lacking protists (2009)
  • Author(s): Maruyama, S., Matsuzaki, M., Misawa, K.& Nozaki, H
  • Journal Title: BMC Evol. Biol Volume: 9 Issue: 1 Pages: 197-197
  • DOI: 10.1186/1471-2148-9-197
  • Peer Reviewed
• [Journal Article] Cyanobacterial contribution to the genomes of the plastid-lacking protists. (2009)
  • Author(s): Maruyama, S
  • Journal Title: BMC Evol.Biol. 9
  • Peer Reviewed
• [Journal Article] Phylogenetic positions of Glaucophyta, green plants (Archaeplastida) and Haptophyta (Chromalveolata) as deduced from slowly evolving nuclear genes. (2009)
  • Author(s): Nozaki, H.
  • Journal Title: Mol.Phylog.Evol. 53 Pages: 872-880
  • Peer Reviewed
• [Journal Article] Distribution and phylogeny of the blue-light receptors aureochromes in eukaryotes. (2009)
  • Author(s): Ishikawa, M.
  • Journal Title: Planta 230 Pages: 543-552
  • Peer Reviewed
• [Presentation] 蛍光融合タンパク質を利用したパーキンサス色素体およびミトコンドリアの細胞学・生化学的解析 (2011)
  • Author(s): 松崎素道、増田功、黒岩晴子、黒岩常祥、野崎久義、北潔
  • Organizer: 日本植物学会第75回大会
  • Place of Presentation: 東京大学駒場キャンパス、東京都
• [Presentation] 三次共生型渦鞭毛藻Kryptoperidiniumの色素体についての考察 (2011)
  • Author(s): 高橋文雄、横山亜紀子、野崎久義
  • Organizer: 日本植物学会第75回大会
  • Place of Presentation: 東京大学駒場キャンパス、東京都
• [Presentation] 多遺伝子系統解析結果におけるハプト藻の系統的位置のゆらぎ (2011)
  • Author(s): 野崎久義、丸山真一朗、楊億、洲崎敏伸
  • Organizer: 日本藻類学会第35回大会
  • Place of Presentation: 富山大学、富山市
• [Presentation] 広範囲な分子系統解析は緑色系二次共生藻の光合成PRK遺伝子が緑色ではない藻類からの起源を示す (2011)
  • Author(s): 楊億、丸山真一郎、関本弘之、坂山英俊、野崎久義
  • Organizer: 日本藻類学会第35回大会
  • Place of Presentation: 富山大学、富山市
• [Presentation] 細胞内共生による藻類多様性の起源-色素体進化の新仮説と「"超"植物界」 (2010)
  • Author(s): 野崎久義
  • Organizer: 葉山セミナー先導科学考究
  • Place of Presentation: 総合研究大学院大学、葉山(招待講演)
  • Year and Date: 2010-11-16
• [Presentation] 緑色植物の姉妹群とハプト植物の系統的位置 (2009)
  • Author(s): 野崎久義
  • Organizer: 日本植物学会第73回大会
  • Place of Presentation: 山形大学(山形県)
  • Year and Date: 2009-09-19
• [Presentation] Genome information renewing the concept of Plantae (2009)
  • Author(s): Nozaki, H.
  • Organizer: Ninth International Phycological Congress(第9回国際藻類学会議)
  • Place of Presentation: 国立オリンビック記念青年総合センター(東京都)
  • Year and Date: 2009-08-07
• [Presentation] Genome information renewing the concept of Plantae (2009)
  • Author(s): Nozaki, H
  • Organizer: Ninth International Phycological Congress
  • Place of Presentation: National Olympic Memorial Youth Center, Japan
• [Presentation] 緑色植物の姉妹群とハプト植物の系統的位置 (2009)
  • Author(s): 野崎久義、丸山真一朗、松崎素道、仲田崇志、加藤将、三澤計治
  • Organizer: 日本植物学会第73回大会
  • Place of Presentation: 山形大学小白川キャンパス、山形市
• [Remarks] 東京大学理学系研究科プレスリリース「むかしむかし、ミドリムシは紅かった?」新聞掲載: 4月21日付の朝日小学生新聞第1面「ミドリムシは昔、赤かった?遺伝子を発見」
  • URL: http://www.s.u-tokyo.ac.jp/ja/press/2011/08.html
• [Remarks] 東京大学理学系研究科プレスリリース
  • URL: http://www.s.u-tokyo.ac.jp/ja/press/2011/08.html