Kon Takeshi

写真a

Researcher Number(JSPS Kakenhi)

10401192

Current Affiliation Organization 【 display / non-display

  • Duty   University of the Ryukyus   Organization for Research Promotion   Research Planning Office  

External Career 【 display / non-display

  • 2002.04
    -
    2011.03

     

  • 2011.04
    -
    2014.03

    Toho University  

  • 2015.02
     
     

    University of the Ryukyus  

  • 2022.04
     
     

    University of the Ryukyus  

Affiliated academic organizations 【 display / non-display

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    THE ICHTHYOLOGICAL SOCIETY OF JAPAN 

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    PALAEONTOLOGICAL SOCIETY OF JAPAN 

Research Interests 【 display / non-display

  • 海洋生物学

  • 魚類

  • 隠蔽種

  • 種分化

  • 幼形進化

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Research Areas 【 display / non-display

  • Life Science / Evolutionary biology

  • Life Science / Biodiversity and systematics

  • Life Science / Biodiversity and systematics

Acquisition of a qualification 【 display / non-display

  • Small Craft Control Person

Thesis 【 display / non-display

  • Diversity and evolution of life histories of gobioid fishes from the viewpoint of heterochrony: Contribution to ichthyofauna of the Ryukyu Islands

    2002.03

Published Papers 【 display / non-display

  • Mesozoic origin and 'out-of-India' radiation of ricefishes (Adrianichthyidae)

    Yamahira Kazunori, Ansai Satoshi, Kakioka Ryo, Yaguchi Hajime, Kon Takeshi, Montenegro Javier, Kobayashi Hirozumi, Fujimoto Shingo, Kimura Ryosuke, Takehana Yusuke, Setiamarga Davin H. E., Takami Yasuoki, Tanaka Rieko, Maeda Ken, Tran Hau D., Koizumi Noriyuki, Morioka Shinsuke, Bounsong Vongvichith, Watanabe Katsutoshi, Musikasinthorn Prachya, Tun Sein, Yun L. K. C., Masengi Kawilarang W. A., Anoop V. K., Raghavan Rajeev, Kitano Jun

    BIOLOGY LETTERS ( Biology Letters )  17 ( 8 ) 20210212 - 20210212   2021.08 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

     View Summary

    The Indian subcontinent has an origin geologically different from Eurasia, but many terrestrial animal and plant species on it have congeneric or sister species in other parts of Asia, especially in the Southeast. This faunal and floral similarity between India and Southeast Asia is explained by either of the two biogeographic scenarios, ‘into-India’ or ‘out-of-India’. Phylogenies based on complete mitochondrial genomes and five nuclear genes were undertaken for ricefishes (Adrianichthyidae) to examine which of these two biogeographic scenarios fits better. We found that <italic>Oryzias setnai</italic> , the only adrianichthyid distributed in and endemic to the Western Ghats, a mountain range running parallel to the western coast of the Indian subcontinent, is sister to all other adrianichthyids from eastern India and Southeast–East Asia. Divergence time estimates and ancestral area reconstructions reveal that this western Indian species diverged in the late Mesozoic during the northward drift of the Indian subcontinent. These findings indicate that adrianichthyids dispersed eastward ‘out-of-India’ after the collision of the Indian subcontinent with Eurasia, and subsequently diversified in Southeast–East Asia. A review of geographic distributions of ‘out-of-India’ taxa reveals that they may have largely fuelled or modified the biodiversity of Eurasia.

  • First record of the schindler’s fish, Schindleria praematura (actinopterygii: perciformes: schindleriidae), from the red sea

    Mohamed A. Abu El-Regal and Takeshi Kon

    Acta Ichthyologica et Piscatoria   49 ( 1 ) 75 - 78   2019.03

    Type of publication: Research paper (scientific journal)

  • 琉球大学研究企画室の活動~学内外セクターとの連携強化を中心に

    西田 睦, 昆 健志, 高橋 そよ, 羽賀 史浩, 殿岡 裕樹

    産学連携学 ( 特定非営利活動法人 産学連携学会 )  15 ( 1 ) 1_30 - 1_40   2019

    Type of publication: Research paper (scientific journal)

     View Summary

    <p>昨今, 世界と日本社会は大きくかつ急速に変化しつつあり,大学が社会で大きな役割を果たすことへの期待がますます大きくなっている.琉球大学は創立時から「地域の発展に貢献する」ことをミッションとしてきたが,期待に応えるためにさらに様々な取組を強化する必要がある.そのための一環として,本学にリサーチアドミニストレーター(URA)が導入された.このURAが所属する研究企画室は,案件によって様々な部署と柔軟に連携を取ることによって,少人数でも効果的な活動を実現してきた.本稿では,4年近くにわたって進めてきた研究企画室の活動を,学内外セクターとの連携強化の試みに焦点を当てて紹介する.</p>

  • 分子系統樹を用いた分岐年代推定と生物多様化プロセス解析の概要

    昆 健志, 井上 潤

    化石 ( 日本古生物学会 )  106 ( 0 ) 5 - 17   2019

    Type of publication: Research paper (scientific journal)

     View Summary

    Understanding the process by which life diversifies is one of the central issues in biology. To clarify this process in focal taxa as well as to conduct phylogenetic analyses, a divergence time estimation —an important analysis to determine the timescale of a phylogenetic tree— must be performed. It is thought that the diversification process can be vividly reconstructed by estimating the diversification rate and ancestral geographic area, characterizing ancestral ecology, and mapping ancestral habitats according to a time-calibrated phylogenetic framework. Here we introduce a divergence time estimation method and various other methods for reconstructing the process of diversification based on the time-calibrated phylogenetic framework with some study examples of aquatic organisms, mainly fish.

  • First record of the schindler’s fish, Schindleria Praematura (Actinopterygii: Perciformes: Schindleriidae), from the red sea

    Abu El-Regal M.

    Acta Ichthyologica et Piscatoria ( Acta Ichthyologica et Piscatoria )  49 ( 1 ) 75 - 78   2019

    Type of publication: Research paper (scientific journal)

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Other Papers 【 display / non-display

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

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SDGs 【 display / non-display

  • 陸水生物のDNAデータに基づく多様性解析

  • 海洋生物のDNAデータに基づく多様性解析