Evolutionary ecology on red algal apomixis and heterosis

• Project/Area Number: 19570092
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Biodiversity/Systematics
• Research Institution: Fukui Prefectural University
• Principal Investigator: KAMIYA Mitsunobu Fukui Prefectural University, 海洋生物資源学部, 准教授 (00281139)
• Research Collaborator: WEST John A. Melbourne University
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2007: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 海藻 / 無配生殖 / 世代交代 / 交雑 / 異数倍数体 / 無性生殖 / 倍数体

Research Abstract

Genetic analyses and crossing tests were performed using euryhaline red alga Caloglossa leprieurii isolated worldwide, and the following results were obtained : (1) Apomixis occurred several times in the C.leprieurii lineages ; (2) 13 out of 18 apomictic strains were heterogeneous, and the strains from Florida and Australia were allotriploid ; (3) The homogeneous apomicts frequently produced tetraspores that grew into gametophytes ; (4) Obligate apomixis was generated through the outcrossing between the genetically divergent sexual strains.

Research Products

• [Journal Article] Isolation and characterization of Parmales (Heterokonta/Heterokontophyta/Strameno piles) from the Oyashio region, western north Pacific. (2010)
  • Author(s): Ichinomiya, M., Yoshikawa, S., Kamiya, M., Ohki, K., Kuwata, A.
  • Journal Title: J. Phycol. (in press)
  • Peer Reviewed
• [Journal Article] Seasonal variation of phlorotannin in sargassacean species from the coast of the Sea of Japan. (2010)
  • Author(s): Kamiya, M., Nishio, T., Yokoyama, A., Yatsuya, K., Nishigaki, T., Yoshikawa, S., Ohki, K.
  • Journal Title: Phycol. Res. 58 Pages: 53-61
  • NAID: 10027506486
  • Peer Reviewed
• [Journal Article] Seasonal variation of phlorotannin in sargassacean species from the coast of the Sea of Japan (2010)
  • Author(s): Kamiya, M.
  • Journal Title: Phycological Research 58 Pages: 53-61
  • NAID: 10027506486
  • Peer Reviewed
• [Journal Article] Origin of apomictic red algae: outcrossing studies of different strains in Caloglossa monosticha (Ceramiales, Rhodophyta). (2008)
  • Author(s): Kamiya, M., West, J.A.
  • Journal Title: J. Phycol. 44 Pages: 977-984
  • Peer Reviewed
• [Journal Article] Morphological and phylogenetic studies on unicellular diazotrophic cyanobacteria (Cyanophytes) isolated from the coastal waters around Singapore. (2008)
  • Author(s): Ohki, K., Kamiya, M., Honda, D., Kumazawa S., Ki Ho, K.
  • Journal Title: J. Phycol. 44 Pages: 142-151
  • Peer Reviewed
• [Journal Article] Origin of apomictic red algae : outcrossing studies of different strains in Caloglossa monosticha(Ceramiales, Rhodophyta). (2008)
  • Author(s): M. Kamiya
  • Journal Title: Journal of Phycology 44 Pages: 977-984
  • Peer Reviewed
• [Journal Article] Morphological and phylogenetic studies on unicellula rdiazotrophic cyanobacteria(Cyanophytes)isolated from the coastal waters around Singapore (2008)
  • Author(s): K. Ohki
  • Journal Title: Journal of Phycology 44 Pages: 142-151
  • Peer Reviewed
• [Journal Article] Ten Years' Monitoring of Intertidal Macroalgal Vegetation of Hyogo Prefecture, Northwestern Coast of Honshu, Japan to Assess the Ompact of the Nakhodka Oil Spill. (2007)
  • Author(s): Kawai, H., Kamiya, M., Komatsu, T., Nakaoka, M., Yamamoto, T., the Marine Life Research Group of Takeno
  • Journal Title: Algae 22(1) Pages: 1-10
  • Peer Reviewed
• [Journal Article] Ten years' monitoring of intertidal macroalgal vegetation of Hyogo prefecture, northwestern coast of Honshu, Japan to assess the impact of the Nakhodka oil spill. (2007)
  • Author(s): H. Kawai
  • Journal Title: Algae 22 Pages: 1-10
  • Peer Reviewed
• [Presentation] Fundamental and applied research on seaweeds (2009)
  • Author(s): Kamiya, M.
  • Organizer: Algae for Sustainability Japan-Netherlands Seminar in Tokyo
  • Place of Presentation: 筑波大学東京キャンパス(東京都)
  • Year and Date: 2009-10-26
• [Presentation] Tetraspore-recycling hybrid derived from the outcrossing between genetically distant strains of Caloglossa leprieurii (Ceramiales, Rhodophyta). (2009)
  • Author(s): Kamiya, M., West., J.A.
  • Organizer: 9th International Phycological Congress
  • Place of Presentation: Tokyo
  • Year and Date: 2009-08-05
• [Presentation] Tetraspore-recycling hybrid derived from the outcrossing between genetically distant strains of Caloglossa leprieurii(Ceramiales, Rhodophyta) (2009)
  • Author(s): Kamiya, M.
  • Organizer: 9th InternationalPhycological Congress
  • Place of Presentation: オリンピック記念青少年総合センター(東京都)
  • Year and Date: 2009-08-05
• [Presentation] 広塩性紅藻Caloglossa leprieuriiの無配生殖集団の起源 (2008)
  • Author(s): 神谷 充伸
  • Organizer: 日本進化学会第10回東京大会
  • Place of Presentation: 東京大学駒場キャンパス
  • Year and Date: 2008-08-23
• [Presentation] 広塩性紅藻Caloglossa leprieuriiの無配生殖集団の起源. (2008)
  • Author(s): 神谷充伸・West, J.A.
  • Organizer: 平成20年度日本進化学会
  • Place of Presentation: 東京
  • Year and Date: 2008-08-22
• [Presentation] 愛媛県下波湾における窒素固定ラン藻検出の試み (2008)
  • Author(s): 谷内由貴子
  • Organizer: 日本海洋学会春期大会
  • Place of Presentation: 東京海洋大学
  • Year and Date: 2008-03-27
• [Presentation] 褐藻ホンダワラ類の天然および培養藻体のフロロタンニン含有量の変動 (2008)
  • Author(s): 神谷充伸
  • Organizer: 日本藻類学会第32回大会
  • Place of Presentation: 東京海洋大学
  • Year and Date: 2008-03-22
• [Presentation] 紅藻キブリイトグサのホンダワラ類4種に対する着生特性 (2008)
  • Author(s): 山本圭吾
  • Organizer: 日本藻類学会第32回大会
  • Place of Presentation: 東京海洋大学
  • Year and Date: 2008-03-22
• [Presentation] 界面活性剤に耐陸を示す単細胞緑藻の性状解析 (2007)
  • Author(s): 滝岡洋平
  • Organizer: 第10回マリンバイオテクノロジー学会
  • Place of Presentation: 山形大学
  • Year and Date: 2007-05-26
• [Book] Investigations on reproductive affinities in red algae. Red algae in the genomic age. ( Seckbach, J. & Chapman, D. [eds]) (2010)
  • Author(s): Kamiya, M., West, J. A.
  • Total Pages: 495
  • Publisher: Springer, Berlin, Germany
• [Book] Red Algae in the Genomic Age (2010)
  • Author(s): Kamiya, M.(共著)
  • Total Pages: 495
  • Publisher: Springer