Studies on larval diversity and evolution through comprehensive analyses on metazoan development

• Project/Area Number: 22870003
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Evolutionary biology
• Research Institution: University of Tsukuba
• Principal Investigator: NAKANO Hiroaki 筑波大学, 生命環境系, 助教 (70586403)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥3,146,000 (Direct Cost: ¥2,420,000、Indirect Cost: ¥726,000); Fiscal Year 2011: ¥1,508,000 (Direct Cost: ¥1,160,000、Indirect Cost: ¥348,000); Fiscal Year 2010: ¥1,638,000 (Direct Cost: ¥1,260,000、Indirect Cost: ¥378,000)
• Keywords: 後生動物 / 新口動物 / 発生 / 幼生 / 多様性 / 進化 / 平板動物 / 珍渦虫 / 幼生型 / 進化発生学

Research Abstract

During the comprehensive analyses on metazoan development, significant results were obtained in particular from placozoans and Xenoturbella. For placozoans, a reliable collection method was established and preliminary data on its reproductive cycle have been obtained. I have also succeeded in keeping placozoans in lab, and asexual reproduction by division was observed. Xenoturbella was found to belong to a fourth phylum within the deuterostomes, and ultrastructural studies were performed on its sperm and larvae. New implications on the diversity and evolution of metazoan development were acquired from these results.

Research Products

• [Journal Article] ないない尽くしの謎の動物珍渦虫の進化と系統 (2011)
  • Author(s): 中野裕昭
  • Journal Title: 生物の科学遺伝 Volume: 65 Pages: 74-79
• [Journal Article] 無腸類と珍渦虫の系統学的位置 (2011)
  • Author(s): 中野裕昭
  • Journal Title: うみうし通信 Volume: 71 Pages: 2-4
  • NAID: 40018865742
• [Journal Article] Acoelomorph flatworms are deuterostomes related to Xenoturbella (2011)
  • Author(s): Philippe H., Brinkmann H., Copley R. R., Moroz L. L., Nakano H., Poustka A. J., Wallberg A., Peterson K. J., Telford M. J.
  • Journal Title: Nature Volume: 470 Pages: 255-258
  • Peer Reviewed
• [Journal Article] Spermatozoon ultrastructure of Xenoturbella bocki (Westblad 1949) (2011)
  • Author(s): Obst M., Nakano H., Bourlat S. J., Thorndyke M. C., Telford M. J., Nyengaard J.R., Funch P
  • Journal Title: Acta Zoologica Volume: 92 Pages: 109-115
  • Peer Reviewed
• [Journal Article] 無腸類と珍渦の系統学的位置 (2011)
  • Author(s): 中野裕昭
  • Journal Title: うみうし通信 Volume: 71 Pages: 5-6
• [Presentation] 珍渦虫と無腸類は本当に新口動物なのか? (2012)
  • Author(s): 中野裕昭
  • Organizer: 日本動物学会第64回関東支部大会
  • Place of Presentation: 東邦大学習志野キャンパス
  • Year and Date: 2012-03-17
• [Presentation] 珍渦虫と無腸類は本当に新口動物なのか? (2012)
  • Author(s): 中野裕昭
  • Organizer: 日本動物学会第64回関東支部大会
  • Place of Presentation: 東邦大学習志野キャンパス(千葉県)(招待講演)
  • Year and Date: 2012-03-17
• [Presentation] 平板動物と無腸類と珍渦虫.珍しい原始的な動物たち (2011)
  • Author(s): 中野裕昭
  • Organizer: 平成23年度日本動物学会関東支部企画公開ビデオ講演会
  • Place of Presentation: 東京大学本郷キャンパス
  • Year and Date: 2011-11-19
• [Presentation] Development and larval morphology of Xenoturbella-Do developmental data support Xenacoelomorpha? (2011)
  • Author(s): Nakano H., Lundin K., Obst M. & Funch P
  • Organizer: Xenacoelomorpha Genome Project Meeting
  • Place of Presentation: Max Planck Institute for Molecular Genetics
  • Year and Date: 2011-11-19
• [Presentation] 平板動物と無腸類と珍渦虫～珍しい原始的な動物たち (2011)
  • Author(s): 中野裕昭
  • Organizer: 平成23年度日本動物学会関東支部企画公開ビデオ講演会
  • Place of Presentation: 東京大学本郷キャンパス理学部2号館(東京都)(招待講演)
  • Year and Date: 2011-11-19
• [Presentation] Development and Larval Morphology of Xenoturbella-Do Developmental Data Support Xenacoelomorpha? (2011)
  • Author(s): 中野裕昭, 他3名
  • Organizer: Xenacoelomorphaゲノムプロジェクト会議
  • Place of Presentation: Max Planck分子遺伝学研究所(ベルリン、ドイツ)(招待講演)
  • Year and Date: 2011-11-11
• [Presentation] 筑波大学下田臨海実験センターで発見された平板動物の報告 (2011)
  • Author(s): 中野裕昭
  • Organizer: 日本動物学会第82回大会
  • Place of Presentation: 旭川大雪アリーナ
  • Year and Date: 2011-09-22
• [Presentation] 筑波大学下田臨海実験センターで発見された平板動物の報告 (2011)
  • Author(s): 中野裕昭
  • Organizer: 日本動物学会第82回大会
  • Place of Presentation: 旭川大雪アリーナ(北海道)
  • Year and Date: 2011-09-22
• [Presentation] Larval morphology of Xenoturbella bocki (2011)
  • Author(s): Obst M., Lundin K., Nakano H. & Funch P
  • Organizer: 2nd International Congress on Invertebrate Morphology
  • Place of Presentation: Harvard University,ケンブリッジ、USA
  • Year and Date: 2011-06-20
• [Presentation] Larval Morphology of Xenoturbella bocki (2011)
  • Author(s): Matthias Obst, 他3名
  • Organizer: 2^<nd> International Congress on Invertebrate Morphology
  • Place of Presentation: ハーバード大学(ケンブリッジ、USA)
  • Year and Date: 2011-06-20
• [Presentation] 珍渦虫Xenoturbella bockiの系統と進化 (2010)
  • Author(s): 中野裕昭
  • Organizer: 日本動物学会第81回大会
  • Place of Presentation: 東京大学駒場キャンパス
  • Year and Date: 2010-09-23
• [Presentation] 珍渦虫Xenoturbella bockiの系統と進化 (2010)
  • Author(s): 中野裕昭
  • Organizer: 日本動物学会第81回大会
  • Place of Presentation: 東京大学駒場キャンパス(東京都)
  • Year and Date: 2010-09-23
• [Book] 日本進化学会編進化学事典(2012) (2012)
  • Author(s): 中野裕昭
  • Total Pages: 996
  • Publisher: 共立出版
• [Book] 進化学辞典(珍渦虫動物門の項執筆) (2012)
  • Author(s): 日本進化学会編
  • Total Pages: 996
  • Publisher: 共立出版
• [Remarks]
  • URL: https://sites.google.com/site/hiroakinakanolab/home
• [Remarks] 報道関連情報 2011年2月に英科学誌「Nature」に掲載された論文(雑誌論文欄の3番、Acoelomorph flatworms are deuterostomes related to Xenoturbella)に関する記事がアメリカの4大テレビネットワークのCBS、NBC、FOXのホームページやドイツ最大の経済新聞Handelsblattに掲載された。
  • URL: http://www.tsukuba.ac.jp/public/press/110214.pdf
• [Remarks]
  • URL: https://sites.google.com/site/hiroakinakanolab/home
• [Remarks]
  • URL: http://www.tsukuba.ac.jp/public/press/110214.pdf