Studies on the evolution of foliose root with the loss of apical growth

• Project/Area Number: 26870502
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Biodiversity/Systematics; Morphology/Structure
• Research Institution: Osaka City University
• Principal Investigator: KOI Satoshi 大阪市立大学, 大学院理学研究科, 講師 (60470019)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: カワゴケソウ科 / 形態進化 / 多様性 / 新種 / 根 / 分裂組織 / 分枝様式 / 根の葉状化 / 根の分枝 / 祖先帰り / 根端分裂組織 / 新属新種 / 根冠 / 器官の相同性 / 根の多様性 / 茎頂分裂組織 / ラオス / タイ / 根の外生分枝 / 細胞分裂活性 / 国際研究者交流（タイ） / 国際研究者交流（ブラジル）

Outline of Final Research Achievements

Morphological evolution of root in aquatic angiosperm family Podostemaceae was studied. The evolution of root branching from endogenous to exogenous development occurred within the African Podostemoideae independently to the Asia clade. It is suggested that the evolution of crustose root involved the transition of root branching. On the other hands, subcylindrical roots evolved three times from crustose roots within Lao Hydrobryum. New species was found in Laos and the homology of its enigmatic organs was hard to identify.

Research Products

• [Int'l Joint Research] Rajamangala University of Technology/Srinakharinwirot University(タイ)
• [Journal Article] A <i>Cladopus </i>Species (Podostemaceae) Rediscovered from Hong Kong (2017)
  • Author(s): Masahiro Kato, Mandy Chuk-Kwan Wong, Janice Pei-Lai Lo and Satoshi Koi
  • Journal Title: Acta phytotaxonomica et geobotanica Volume: 68 Issue: 1 Pages: 17-22
  • DOI: 10.18942/apg.201615
  • NAID: 130005612087
  • ISSN: 1346-7565, 2189-7042
  • Year and Date: 2017-02-28
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] New Species and New Records of Podostemaceae from Phitsanulok Province, Northern Thailand (2016)
  • Author(s): Petcharat Werukamkul, La-aw Ampornpan, Masahiro Kato, Satoshi Koi
  • Journal Title: Acta phytotaxonomica et geobotanica Volume: 67 Issue: 2 Pages: 97-114
  • DOI: 10.18942/apg.201515
  • NAID: 130005251459
  • ISSN: 1346-7565, 2189-7042
  • Year and Date: 2016-06-30
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Historical biogeography of river-weeds (Podostemaceae). (2015)
  • Author(s): Satoshi Koi, Hajime Ikeda, Rolf Rutishauser, Masahiro Kato
  • Journal Title: Aquatic Botany Volume: 127 Pages: 62-69
  • DOI: 10.1016/j.aquabot.2015.08.003
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] The taxonomy of Podostemaceae subfamily Tristichoideae in Laos, with descriptions of seven new species. (2015)
  • Author(s): Satoshi Koi, Masahiro Kato
  • Journal Title: Acta Phytotaxonomica et Geobotanica Volume: 66 Pages: 61-79
  • NAID: 110009974492
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Additions to Podostemaceae subfamily Podostemoideae of Laos. (2015)
  • Author(s): Satoshi Koi, Masahiro Kato
  • Journal Title: Acta Phytotaxonomica et Geobotanica Volume: 66 Pages: 181-187
  • NAID: 110010014887
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] A new crustose species of Zeylanidium (Podostemaceae) from Kerala, India. (2015)
  • Author(s): Masahiro Kato, Satoshi Koi, Chie Tsutsumi, Natsu Katayama
  • Journal Title: Rheedea Volume: 25 Pages: 156-158
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] ラオス産カワゴケソウ科の根の多様化に関する研究 (2017)
  • Author(s): 厚井聡，加藤雅啓
  • Organizer: 日本植物分類学会第16回大会
  • Place of Presentation: 京都大学（京都府京都市）
  • Year and Date: 2017-03-11
• [Presentation] カワゴケソウ科に見られる特異な分枝 (2016)
  • Author(s): 厚井聡
  • Organizer: 日本植物学会第80回大会
  • Place of Presentation: 沖縄コンベンションセンター（沖縄県宜野湾市）
  • Year and Date: 2016-09-18
  • Invited
• [Presentation] タイ類ゼニゴケの配偶子形成におけるMpRKD遺伝子の機能解析 (2015)
  • Author(s): 厚井聡, 久永哲也, 嶋村正樹, 石崎公庸, 河内孝之, 中島敬二
  • Organizer: 第4回近畿植物学会講演会（大阪）
  • Place of Presentation: 大阪市立大学理学部附属植物園（大阪府交野市）
  • Year and Date: 2015-11-07
• [Presentation] Evolution of root morphology in Podostemaceae. (2015)
  • Author(s): Satoshi Koi, Ryoko Imaichi, Masahiro Kato
  • Organizer: Contribution of Genetics to Plant Conservation, Brazil - Japan International Workshop 2015 (Piracicaba)
  • Place of Presentation: サンパウロ大学（ブラジル・ピラシカバ）
  • Year and Date: 2015-02-03
• [Presentation] Functions of the RKD gene family in reproduction of basal land plant Marchantia polymorpha. (2014)
  • Author(s): Satoshi Koi, Masaki Shimamura, Kimitsune Ishizaki, Takayuki Kohchi, Keiji Nakajima
  • Organizer: Marchantia Workshop 2014 (Kobe)
  • Place of Presentation: 神戸大学（神戸）
  • Year and Date: 2014-12-09
• [Remarks] 大阪市立大学 研究者要覧
  • URL: http://rdbsv02.osaka-cu.ac.jp/profile/ja.mh9ZnvTn3bef9QyMGgpTCw==.html