Phylogeography and evolutionary significant units of genus Salvelinus in the North Pacific rim

2012 Fiscal Year Final Research Report

• Project/Area Number: 22510251
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Resource conservation science
• Research Institution: Fisheries Research Agency
• Principal Investigator: YAMAMOTO Shoichiro 独立行政法人水産総合研究センター, 増養殖研究所, 主任研究員 (20392897)
• Co-Investigator(Kenkyū-buntansha): MAEKAWA Koji 北海道大学, 名誉教授 (80002301) ; MORITA Kentaro 独立行政法人水産総合研究センター, 北海道区水産研究所, 主任研究員 (30373468)
• Project Period (FY): 2010 – 2012
• Keywords: 遺伝子資源保全 / イワナ属魚類 / 集団遺伝構造 / 進化的に重要な単位

Research Abstract

We examined the geographic distribution pattern of mitochondrial DNA sequence polymorphisms of salmonid fishes, Dolly Varden Salvelinus malma and white-spotted charr S. leucomaenis, over most of its range in the North Pacific rim, to assess how its spatial population genetic structure has been molded. The haplotypes from Dolly Varden were grouped into three main lineages, which correspond to western, central, and eastern regions in the North Pacific. Some diagnostic and genetically differentiated haplotypes were identified around the southerly populations (Honshu Island) of white-spotted charr.

Research Products

• [Journal Article] Preface:Micro- and macroevolution of fishes. (2012)
  • Author(s): Nishida M. Maekawa K.
  • Journal Title: Environ. Biol Volume: Fish 94 Pages: 503-504
  • Peer Reviewed
• [Presentation] 堰堤による分断がもたらすイワナ在来個体群の有効集団サイズの縮小と遺伝的多様性の減少 (2012)
  • Author(s): 久保田仁志・酒井忠幸・綱川孝俊・山本祥一郎・渡辺勝敏
  • Organizer: 日本水産学会年会
  • Place of Presentation: 東京
  • Year and Date: 20120000
• [Presentation] Population genetic structure and phylogeography of a salmonid fish, Dolly Varden Salvelinus malma: multiple glacial refugia in the North Pacific rim. (2012)
  • Author(s): Yamamoto S. Maekawa K. Morita K. Crane P. Oleinik A.
  • Organizer: 7th International Charr Symposium
  • Place of Presentation: Sakhalin
  • Year and Date: 20120000
• [Presentation] Incidence of a skeletal deformity (truncated upper jaw) in a natural population of white-spotted charr Salvelinus leucomaenis. (2012)
  • Author(s): Yamamoto S. Morita K. Yokoyama R. Miyamoto K. Sato M. Maekawa K.
  • Organizer: 7th International Charr Symposium
  • Place of Presentation: Sakhalin
  • Year and Date: 20120000
• [Presentation] Local adaptation to alpine environment in white-spotted charr (2012)
  • Author(s): Tsuboi J. Mitsui K. Ashizawa A. Yamamoto S. Morita K.
  • Organizer: 7th International Charr Symposium
  • Place of Presentation: Sakhalin
  • Year and Date: 20120000
• [Presentation] 北太平洋沿岸河川に生息するオショロコマの遺伝的集団構造 (2011)
  • Author(s): 山本祥一郎・前川光司・森田健太郎・Penny Crane・Alla Oleinik・Lubov Skurikhina
  • Organizer: 日本水産学会年会
  • Place of Presentation: 東京
  • Year and Date: 20110000
• [Presentation] Spatial variations in census and effective population sizes of white-spotted charr (Salvelinus leucomaenis) in relation to habitat variables. (2010)
  • Author(s): Yamamoto S. Kubota H. Hasegawa K. Nakamura T.
  • Organizer: International Symposium: Advances in the Population Ecology of Stream Salmonids
  • Place of Presentation: Luarca, Spain
  • Year and Date: 20100000
• [Book] 生息域の分断化と遺伝的多様性 -淡水魚類を例に-. 「野生動物保護の事典」 (2010)
  • Author(s): 山本祥一郎
  • Total Pages: pp 201-206
  • Publisher: 野生生物保護学会編、朝倉書店
• [Remarks] 前川光司(2012) 北から来た動物・魚たち.モーリー 26: 12-14
• [Remarks] 前川光司(2011) 渓流改変と渓流魚, 「北海道の森林」(北方森林学会編), pp.197-202, 北海道新聞社
• [Remarks] 前川光司(2011) イワナよもやま話―tosea or not to sea-有効食物量の差仮設からの検証―.労働文化 228: 21-26.
• [Remarks] 山本祥一郎(2010) 渓流魚資源の遺伝的多様性とその保全. 農林水産技術研究ジャーナル 33(7): 9-13.