NAIKI Akiyo

写真a

Title

Associate Professor

Researcher Number(JSPS Kakenhi)

30393200

3

Current Affiliation Organization 【 display / non-display

  • Duty   University of the Ryukyus   Tropical Biosphere Research Center   Associate Professor  

  • Concurrently   University of the Ryukyus   Graduate School of Engineering and Science   Marine and Environmental Sciences   Associate Professor  

  • Concurrently   University of the Ryukyus   Graduate School of Engineering and Science   Chemistry, Biology and Marine Science   Associate Professor  

University 【 display / non-display

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    1998

    Kyoto University   Faculty of Integrated Human Studies   Graduated

Graduate School 【 display / non-display

  • 1998.04
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    2000.03

    Kyoto University  Graduate School, Division of Natural Science  Departmant of Botany  Master's Course  Completed

  • 2000.04
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    2003.03

    Kyoto University  Graduate School, Division of Natural Science  Departmant of Botany  Doctor's Course  Completed

External Career 【 display / non-display

  • 2003.04
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    2003.10

    Part-time lecturer, Kyoto University  

  • 2003.11
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    2004.03

    Faculty of Science, Shinshu University  

  • 2004.04
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    2010.09

    Osaka Museum of Natural History  

  • 2010.10
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    2013.07

    Faculty of Education, Okayama University  

  • 2013.08
     
     

    University of the Ryukyus  

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Affiliated academic organizations 【 display / non-display

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    The Botanical Society of Japan 

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    The Japanese Society for Plant Systematics 

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    The Society for the Study of Species Biology 

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    International Association for Plant Taxonomy 

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    The Ecological Society of Japan 

Research Interests 【 display / non-display

  • Rubiaceae

  • 植物系統分類学

Research Areas 【 display / non-display

  • Plant systematics, Rubiaceae, Heterostyly

Acquisition of a qualification 【 display / non-display

  • First Kind of High School Teacher License

  • Museum Attendant

Published Papers 【 display / non-display

  • Double migration of the endangered Tricyrtis formosana (Liliaceae) in Japan.

    Tsunenari K, Ito T, Yokota M, Shibabayashi M, Endo C, Chung KF, Suyama Y, Matsuo A, Abe A, Naiki A, Setoguchi H, Makino T, Isagi Y

    Scientific reports ( Scientific Reports )  14 ( 1 ) 957 - 957   2024.01 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

     View Summary

    The Ryukyu Islands of Japan are a biodiversity hotspot due to geographical and historical factors. Tricyrtis formosana is a perennial herbaceous plant that commonly found in Taiwan. But only a few populations have been identified in a limited habitat on Iriomote Island, while populations of unknown origin occur near human settlements in an area on the main island of Okinawa. To better understand these populations of the phylogenetic uniqueness and intrinsic vulnerability, we conducted comparative analyses including (1) phylogeny and population structure with MIG-seq data, (2) photosynthesis-related traits of plants grown under common conditions and (3) transcriptome analysis to detect deleterious variations. Results revealed that T. formosana was split into two clades by the congeners and that Iriomote and Okinawa populations independently derived from ancestral Taiwanese populations in each clade. Photosynthetic efficiency was lowest in the Iriomote population, followed by Okinawa and Taiwan. Transcriptome analysis showed that the Iriomote population accumulated more deleterious variations, suggesting intrinsic vulnerability. These results indicate that each T. formosana population in Japan is phylogenetically unique and has been independently dispersed from Taiwan, and that the Iriomote population presents a high conservation difficulty with a unique photosynthesis-related characteristic and a larger amount of deleterious variations.

  • New or noteworthy distribution records of some vascular plants from Iriomote Island, Okinawa, Japan

    Takenori Yamamoto, Koji Yonekura, Atsushi Abe, Masaharu Amano, Hironori Toyama, Takuto Shitara, Shuichiro Tagane, Aya Hasegawa, Mikio Kashima, Tadashi Kajita, Akiko Soejima, Akiyo Naiki

      98 ( 4 ) 178 - 191   2023.08 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • Hymenophyllum pilosissimum C. Chr. (Hymenophyllaceae) on Iriomote Island, a New Record for Japan

    Akiyo Naiki, Takenori Yamamoto, Aya Hasegawa, Tao Fujiwara, Katsuhiro Yoneoka, Atsushi Ebihara

    Acta Phytotaxonomica et Geobotanica ( 日本植物分類学会 )  74 ( 2 ) 131 - 133   2023.07 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

     View Summary

    Hymenophyllum pilosissimum C. Chr. (Hymenophyllaceae), recently discovered on Iriomote Island, is reported for the first time in Japan.

  • Rediscovery of Exallage auricularia (Rubiaceae) from Yonaguni Island, Okinawa, Japan

    Akiyo Naiki, Tadaki Nakasone, Tetsuo Ohi-Toma, Koji Yonekura, Atsushi Abe

    The journal of Japanese botany   98 ( 3 ) 134 - 139   2023.06 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • First Record of an Alien Plant Species, <i>Dentella repens</i> (<i>Rubiaceae</i>) from Japan

    KAJITA Yui, YONEKURA Koji, NAIKI Akiyo

    The Journal of Japanese Botany ( The Editorial Board of The Journal of Japanese Botany )  98 ( 2 ) 97 - 100   2023.04 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

     View Summary

    <p>We collected an alien plant, <i>Dentella repens</i> (L.) J.R.Forst. & G.Forst. (<i>Rubiaceae</i>) for the first time from the northern part of Iriomote Island, Okinawa, Japan in 2020. It is a new record of the species and the genus <i>Dentella</i> from the country. Since the first record in 2020, the plant has been found steadily growing at one site in a village near the northern shore of the island. We observed the morphology of the collected materials in detail under a stereomicroscope and the characteristics were generally consistent with the descriptions of the species in previous studies. The features of hairs on the corolla and calyx lobes are new additional information for the species.</p>

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Books 【 display / non-display

  • A Picture Guide for the Flora of Bidoup-Nui Ba National Park I: Mt. Langbian

    Ai Nagahama, Shuichiro Tagane, Nguyen Van Ngoc, Hoang Thi Binh, Truong Quang Cuong, Hironori Toyama, Hidetoshi Nagamasu, Kojin Tsuchiya, Zhang Meng, Yoshihisa Suyama, Etsuko Moritsuka, Nguyen Thi Anh Thu, Nguyen Cuong Thinh, Ayumi Matsuo, Shun Hirota, Akiyo Naiki, Le Van Son, Pham Huu Nhan, Tetsukazu Yahara ( Part: Multiple Authorship )

    Kyushu University Press  2019.02

  • A Picture guide of forest plants in Gunung Gede Pangrango National Park, Indonesia

    Tagane Shuichiro, Toyama Hironori, 内貴 章世, 永益 英敏, 矢原 徹一, Darnaedi Dedy, Dja-maluddin Ibrahim, Ardiyani Marlina, Hidayat Arief, Ashari Ahmad Jaeni, Ichihashi Ryuji ( Part: Multiple Authorship )

    Kyushu University Press  2018

  • Wild Flowers of Japan 4

    Koji Yonekura, Hiroyoshi Ohashi, Akiyo Naiki et al. ( Part: Multiple Authorship ,  Rubiaceae )

    Heibonsha  2017.03

  • A picture guide of forest trees in Cambodia v. 4

    Tagane, S, Toyama H, Fuse K, Chhang P., Naiki, A. Nagamasu, H, Yahara, T ( Part: Multiple Authorship )

    Kyushu University Press  2017.02

  • A list of vascular plant specimens of Nara Prefecture in the herbarium of the Osaka Museum of Natural History

    Akiyo Naiki, Kiyoshi Matsui, Shinji Fujii, Ko Seto ( Part: Multiple Authorship )

    Osaka Museum of Natural History  2010.03

Other Papers 【 display / non-display

  • Ecology of rheophyte characterized having Eriocaulon sexangulare L.

    高岸慧, 宮本太, 内貴章世

    日本生態学会大会講演要旨(Web)   68th   2021

     

    J-GLOBAL

  • An invasive weedy herb, Praxelis clematidea (Hieron. ex Kuntze) R.M.King & H.Rob. (Asteraceae-Eupatorieae) newly naturalized in Yaeyama Islands, Okinawa Pref., Japan

    米倉浩司, 内貴章世

    日本植物分類学会大会研究発表要旨集   20th (CD-ROM)   2021

     

    J-GLOBAL

  • Factors causing differences in fruit morphology between two morphs and among environments of Scaevola taccada

    栄村奈緒子, 古本良, 内貴章世, 梶田忠, 工藤洋

    日本生態学会大会講演要旨(Web)   67th   2020

     

    J-GLOBAL

  • Conservational study for the threatened plant species Eriocaulon truncatum Buch.-Ham. ex Mart. in Iriomote Island

    高岸慧, 宮本太, 内貴章世

    日本生態学会大会講演要旨(Web)   67th   2020

     

    J-GLOBAL

  • Genome-wide analysis of endangered plant species growing at the edge of the species distribution

    芝林真友, 伊東拓朗, 國府方吾郎, 阿部篤志, 横田昌嗣, 遊川知久, 陶山佳久, 内貴章世, 栗田和紀, 永野惇, 本庄三恵, 井鷺裕司

    日本生態学会大会講演要旨(Web)   67th   2020

     

    J-GLOBAL

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Academic Awards 【 display / non-display

  • 12th Best Paper Award

    2018.03   Japanese Society for Plant Systematics   Morphological and Molecular Phylogenetic Analyses of Geranium yesoense (Geraniaceae) in Japan

    Winner: Wakasugi Y, H. Azuma, A. Naiki, S. Nishida

Grant-in-Aid for Scientific Research 【 display / non-display

  • Examining the impact of typhoon disturbance on plant species diversity in a wet subtropical forest using a 3D canopy model.

    Grant-in-Aid for Scientific Research(C)

    Project Year: 2023.04  -  2026.03 

    Direct: 3,600,000 (YEN)  Overheads: 4,680,000 (YEN)  Total: 1,080,000 (YEN)

  • Examining the impact of typhoon disturbance on plant species diversity in a wet subtropical forest using a 3D canopy model.

    Grant-in-Aid for Scientific Research(C)

    Project Year: 2023.04  -  2026.03 

    Direct: 3,600,000 (YEN)  Overheads: 4,680,000 (YEN)  Total: 1,080,000 (YEN)

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2021.04  -  2024.03 

    Direct: 3,200,000 (YEN)  Overheads: 4,160,000 (YEN)  Total: 960,000 (YEN)

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2019.04  -  2022.03 

    Direct: 3,300,000 (YEN)  Overheads: 990,000 (YEN)  Total: 4,290,000 (YEN)

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2017.04  -  2020.03 

    Direct: 3,700,000 (YEN)  Overheads: 1,110,000 (YEN)  Total: 4,810,000 (YEN)

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Other External funds 【 display / non-display

  • Project Year: 2020.04  -  2023.03 

    Offer Organization: Environmental Restoration and Conservation Agency (ERCA)

SDGs 【 display / non-display

  • 植物相、維管束植物の多様性に関する研究

Social Activity 【 display / non-display

  • 2023.11
     
     

  • 2023.09