Molecular genetical and ecological studies for the elucidation of the mechanisms in lamprey maturation.

• Project/Area Number: 20780136
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: General fisheries
• Research Institution: University of Toyama
• Principal Investigator: YAMAZAKI Yuji University of Toyama, 大学院・理工学研究部(理学領域), 准教授 (30332654)
• Project Period (FY): 2008 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2008: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
• Keywords: 増養殖 / 脊椎動物 / ヤツメウナギ / 進化 / 種分化 / 保全 / 性成熟 / 遺伝子発現調節 / 環境 / 遺伝子発現 / 成長 / 生活史多型

Research Abstract

In order to elucidate the mechanisms of lamprey maturation, both molecular genetical and ecological studies has been conducted. The different gene expression were detected according to the metamorphosis and maturation stages between life histories. Ecological studies indicated the importance of both food resource and water temperature for determination of lamprey maturation.

Research Products

• [Journal Article] 富山県西部の小河川におけるスナヤツメ南方種の摂餌生態 (2010)
  • Author(s): 金井聡志, 山崎裕治
  • Journal Title: 富山の生物 49 Pages: 41-46
• [Journal Article] 富山県西部の小河川におけるスナヤツメ南方種の摂餌生態 (2010)
  • Author(s): 金井聡志・山崎裕治
  • Journal Title: 富山の生物 49 Pages: 41-46
• [Journal Article] Disturbance of the indigenous gene pool of the threatened brook lamprey Lethenteron sp. S by intraspecifiintrogression and habitat fragmentation. (2009)
  • Author(s): Yokoyama, R., Yamano, A., Takeshima, H., Nishida, M., Yamazaki, Y
  • Journal Title: Conservation Genetics 10 Pages: 29-43
  • Peer Reviewed
• [Journal Article] Disturbance of the indigenous gene pool of the threatened brook lamprey Lethenteron sp. S by intraspecific introgression and habitat fragmentation (2009)
  • Author(s): Yokoyama, R., Yamano, A., Takeshima, H., Nishida, M., and, Yamazaki, Y.
  • Journal Title: Conservation Genetics 10 Pages: 29-43
  • Peer Reviewed
• [Journal Article] Close, D.A. 2008. Amplified Fragment Length Polymorphismassessment of genetic diversity of Pacific lamprey. (2008)
  • Author(s): Lin, B., Zhang, Z., Wang, Y., Currens, K.P., Spidle, A., Yamazaki, Y.
  • Journal Title: North American Journal of Fisheries Management 28 Pages: 1182-1193
  • Peer Reviewed
• [Journal Article] AFLP assessment of genetic diversity of Pacific lamprey (2008)
  • Author(s): Lin, B., Yamazaki Y. 他5名
  • Journal Title: North American Journal of Fisheries Management 28 Pages: 1182-1193
  • Peer Reviewed
• [Presentation] 無顎類カワヤツメ陸封集団における生活史可塑性の検証 (2010)
  • Author(s): 山崎裕治, 長井輝美, 稲葉修
  • Organizer: 日本生態学会大会
• [Presentation] 無顎類カワヤツメ陸封集団における生活史可塑性の検証 (2010)
  • Author(s): 山崎裕治・長井輝美・稲葉修
  • Organizer: 日本生態学会大会
  • Place of Presentation: 東京大学(東京)
• [Presentation] カワヤツメ集団の遺伝子流動パタンからみた同所的種分化と遺書的種分化の可能性 (2009)
  • Author(s): 山崎裕治, 長井輝美, 横山良太, 後藤晃
  • Organizer: 日本進化学会大会
• [Presentation] カワヤツメ集団の遺伝子流動バタンからみた同所的種分化と異所的種分化の可能性 (2009)
  • Author(s): 山崎裕治・長井輝美・横山良太・後藤晃
  • Organizer: 日本進化学会大会
  • Place of Presentation: 北海道大学(札幌)
• [Presentation] 同一水系内地点間におけるスナヤツメ北方種の繁殖形質の変異 (2008)
  • Author(s): 山野歩美, 山崎裕治
  • Organizer: 日本魚類学会大会
• [Presentation] スナヤツメ隠蔽種群における初期発生の比較と孵化のメカこズム (2008)
  • Author(s): 長井輝美, 山野歩美, 山崎裕治
  • Organizer: 日本魚類学会大会
• [Presentation] 同一水系内地点間におけるスナヤツメ北方種の繁殖形質の変異 (2008)
  • Author(s): 山野歩美・山崎裕治
  • Organizer: 2008年度日本魚類学会
  • Place of Presentation: 愛媛大学(愛媛県松山市)
• [Presentation] スナヤツメ隠蔽種群における初期発生の比較と孵化のメカニズム (2008)
  • Author(s): 長井輝美・山野歩美・山崎裕治
  • Organizer: 2008年度日本魚類学会
  • Place of Presentation: 愛媛大学(愛媛県松山市)