How to occur genomic rearrangements in Lysimachia mauritiana showing wide-rainging intraspecific karyotype polymorphism

• Project/Area Number: 24570111
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Biodiversity/Systematics
• Research Institution: University of Kochi
• Principal Investigator: OGINUMA Kazuo 高知県立大学, 地域教育研究センター, 教授 (30106794)
• Co-Investigator(Kenkyū-buntansha): HOSHI Yoshikazu 東海大学, 農学部, 教授 (70332088)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 染色体再編・維持 / 染色体動態 / 種内染色体多型 / 種分化 / ハマボッス / 染色体多型 / サイトタイプ / FISH解析 / ゲノム再編

Outline of Final Research Achievements

Concerning to the intraspecific chromosomal polymorphism of Lysimachia mauritiana, 1) the distribution patterns of individuals, and the origin of species native to Taiwan; 2) the distribution patterns and their dynamics of individuals native to Takara Island of the Tokara group and several islands of the Amami group in the Ryukyu Archipelago, were investigated. 3) The origin of the chromosomal polymorphism of this species distributed in the Ryukyu Archipelago, was analyzed by FISH using probes 5S, 45S rDNAs and telomere DNA.
The results foregoing 1) and 2) were respectively published in 2012 and 2015. The origin of chromosomal polymorphism of this species is suggested to be 2n=18 (6m) distributed in Sakishima group of the Ryukyu Archipelago.

Research Products

• [Journal Article] Widespread cytotypic variation, cytogeography and dynamic analysis of Lysimachia mauritiana (Primulaceae) on Amamioshima, Kakeromajima and Tokunoshima Islands in the Amami Group of the Ryukyu Archipelago, Japan (2015)
  • Author(s): Yoshiko Kono, Yoshikazu Hoshi, Hiroaki Setoguchi, Masatsugu Yokota, Kazuo Oginuma
  • Journal Title: Cytologia Volume: 80 Pages: 1-10
  • NAID: 130005074304
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Widespread cytotypic variation, cytogeography and dynamic analysis of Lysimachia mauritiana (Primulaceae) on Takarajima Island in the Ryukyu Archipelago of Japan (2013)
  • Author(s): Yoshiko Kono, Yoshikazu Hoshi, Hiroaki Setoguchi, Masatsugu Yokota, Kazuo Oginuma
  • Journal Title: Chromosome Botany Volume: 8 Pages: 47-52
  • NAID: 130003384676
  • Peer Reviewed
• [Journal Article] Intraspecific karyotypic polymorphism is highly concordant with allozyme variation in Lysimachia mauritiana (Primulaceae: Myrsinoideae) in Taiwan: implications for the colonization history and dispersal patterns of coastal plants. (2012)
  • Author(s): Kono, Y., Chung, K.F., Chen, C.H., Hoshi, Y., Setoguchi, H., Chou, C.H., Oginuma, K., Peng, C.I.
  • Journal Title: Annals of Botany Volume: 110 Issue: 6 Pages: 1119-1135
  • DOI: 10.1093/aob/mcs192
  • Peer Reviewed
• [Presentation] Cytotypes of Lysimachia mauritiana (Primulaceae) collected from two islands of the Daito group in the Ryukyu Archipelago, Japan (2014)
  • Author(s): Kazuo Oginuma, Yoshiko Kono, Yoshikazu Hoshi, Hiroaki Setoguchi, Masatsugu Yokota
  • Organizer: The International Society of Chromosome Botany
  • Place of Presentation: 東京農業大学 世田谷キャンパス
  • Year and Date: 2014-11-22 – 2014-11-23
• [Presentation] Chromosomal evolution of Lysimachia mauritiana (Primulaceae) among nine cytotypes distributed in the Ryukyu Archipelago of Japan confirmed by FISH analyses (2013)
  • Author(s): Yoshiko Kono, Yoshikazu Hoshi, Hiroaki Setoguchi, Masatsugu Yokota, Kazuo Oginuma
  • Organizer: The International Society of Chromosome Botany
  • Place of Presentation: 広島女学院大学
• [Presentation] Dynamics of karyotypic polymorphism in Lysimachia mauritiana (Primulaceae) collected from Takarajima Island in the Ryukyu Archipelago, Japan
  • Author(s): Kazuo Oginuma, Megumi Nishiyama, Misato Maeda, Yoshiko Kono, Yoshikazu Hoshi, Hiroaki Setoguchi, Masatsugu Yokota
  • Organizer: International Society of Chromosome Botany
  • Place of Presentation: 東海大学農学部
• [Presentation] Kazuo Oginuma, Ai Kunimoto, Megumi Miyoshi, Yoshiko, Kono, Yoshikazu Hoshi, Hiroaki Setoguchi, Masatsugu Yokota
  • Author(s): Dynamics of karyotypic polymorphism in Lysimachia mauritiana (Primulaceae) collected from three collection sites in Amamioshima Island in the Ryukyu Archipelago, Japan
  • Organizer: International Society of Chromosome Botany
  • Place of Presentation: 東海大学農学部