Genomic analysis of reproductive isolation traits among the closely related stickleback species

2009 Fiscal Year Final Research Report

• Project/Area Number: 19770074
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Biodiversity/Systematics
• Research Institution: National Fisheries University
• Principal Investigator: 高橋 洋 National Fisheries University, 生物生産学科, 助教 (90399650)
• Project Period (FY): 2007 – 2009
• Keywords: 種分化 / ゲノム分析 / AFLP / トゲウオ

Research Abstract

トゲウオ科魚類近縁種間の生殖隔離形質について,その遺伝的基盤を解明することを目的に,交配実験および遺伝マーカーの単離を行った。トミヨとイバラトミヨの戻し交配家系を作成し,生殖腺の組織学的観察および行動分析を行い,各形質の遺伝様式を調べた。また,これら2種とモデル生物であるイトヨとの間で共用できる多数の遺伝マーカーを開発した。今後は,これらのマーカーに基づき,各形質のQTL解析を行う予定である。

Research Products

• [Journal Article] Isolation and characterization of 13 microsatellite loci in the nine-spined stickleback (Pungitius pungitius) and cross-species amplification in 5 stickleback species (family Gasterosteidae) (2009)
  • Author(s): Yu-ichiro Meguro, Hiroshi Takahashi, Hirohiko Takeshima, Mutsumi Nishida, Akira Goto
  • Journal Title: Conservation Genetics Resources (in press)
  • Peer Reviewed
• [Journal Article] GEDIMAP: a database of genetic diversity for Japanese freshwater fishes. (2009)
  • Author(s): Katsutoshi Watanabe, Yuichi Kano, Hiroshi Takahashi, Takahiko Mukai, Ryo Kakioka1, Koji Tominaga.
  • Journal Title: Ichthyological Research 57 Pages: 78-84
  • Peer Reviewed
• [Journal Article] Explosive speciation of Takifugu: Another use of fugu as a model system for evolutionary biology. (2009)
  • Author(s): Yusuke Yamanoue, Masaki Miya, Keiichi Matsuura, Seita Miyazawa, Naofumi Tsukamoto, Hiroyuki Doi, Hiroshi Takahashi, Kohji Mabuchi, Mutsumi Nishida, Harumi Sakai
  • Journal Title: Molecular Biology and Evolution 26 Pages: 623-629
  • Peer Reviewed
• [Presentation] The extent of hybridization between Biwa salmon and red-spotted masu salmon in Lake Biwa, Japan. (2009)
  • Author(s): Masayuki Kuwahara
  • Organizer: International Symposium on Formosa Landlocked Salmon and Masu salmon Agenda.
  • Place of Presentation: National Taiwan Normal University, Taipei, Taiwan
  • Year and Date: 2009-10-23
• [Presentation] Trophic relationship between red-spotted masu salmon and introduced rainbow trout in a Kyushu stream, southern Japan. (2009)
  • Author(s): Hiroyuki Sakano
  • Organizer: International Symposium on Formosa Landlocked Salmon and Masu salmon Agenda
  • Place of Presentation: National Taiwan Normal University, Taipei, Taiwan.
  • Year and Date: 2009-10-23
• [Book] 淡水魚地理の自然史―多様性と分化をめぐって (2010)
  • Author(s): 渡辺勝敏・高橋 洋
  • Total Pages: 288
  • Publisher: 北海道大学出版会