Rchr
J-GLOBAL ID:201101002269252994   Update date: Jul. 18, 2024

Hamaji Takashi

Hamaji Takashi
Affiliation and department:
Job title: Postdoctoral associate
Homepage URL  (1): https://scholar.google.com/citations?user=Z0b0i5gAAAAJ
Research field  (1): Plants: molecular biology and physiology
Research keywords  (20): 緑藻 ,  性分化 ,  細胞内共生 ,  ミトコンドリア ,  葉緑体 ,  母性遺伝 ,  性決定 ,  ヘテロタリズム ,  ホモタリズム ,  配偶子 ,  遺伝学 ,  卵子 ,  精子 ,  雌雄の二極化 ,  藻類学 ,  比較ゲノム学 ,  有性生殖 ,  ボルボックス ,  クラミドモナス ,  進化生物学
Research theme for competitive and other funds  (5):
  • 2024 - 2027 ボルボックス系列緑藻の性分化遺伝子制御ネットワーク解明と雌雄二極化の再構築
  • 2020 - 2023 卵生殖出現をボルボックス系列緑藻で解明する性分化機構の進化発生学
  • 2016 - 2018 Reconstruction of gametic sexual dimorphism on the basis of transcriptomic profile analysis of volvocine algae
  • 2011 - 2014 Comparative genomics of sex determining regions toward reconstruction of emergence and evolution of male-female diichotomy
  • 2007 - 2010 Comparative genomics of sex chromosome regions in volvocine algae
Papers (28):
  • Sa Geng, Takashi Hamaji, Patrick J. Ferris, Minglu Gao, Yoshiki Nishimura, James Umen. A conserved RWP-RK transcription factor VSR1 controls gametic differentiation in volvocine algae. Proceedings of the National Academy of Sciences. 2023. 120. 29. e2305099120
  • Kohei Takahashi, Shigekatsu Suzuki, Hiroko Kawai-Toyooka, Kayoko Yamamoto, Takashi Hamaji, Ryo Ootsuki, Haruyo Yamaguchi, Masanobu Kawachi, Tetsuya Higashiyama, Hisayoshi Nozaki. Reorganization of the ancestral sex-determining regions during the evolution of trioecy in Pleodorina starrii. Communications biology. 2023. 6. 1. 590-590
  • Kohei Takahashi, Hiroko Kawai-Toyooka, Ryo Ootsuki, Takashi Hamaji, Yuki Tsuchikane, Hiroyuki Sekimoto, Tetsuya Higashiyama, Hisayoshi Nozaki. Three sex phenotypes in a haploid algal species give insights into the evolutionary transition to a self-compatible mating system*. Evolution. 2021. 75. 11. 2984-2993
  • Kayoko Yamamoto, Takashi Hamaji, Hiroko Kawai-Toyooka, Ryo Matsuzaki, Fumio Takahashi, Yoshiki Nishimura, Masanobu Kawachi, Hideki Noguchi, Yohei Minakuchi, James G. Umen, et al. Three genomes in the algal genus Volvox reveal the fate of a haploid sex-determining region after a transition to homothallism. Proceedings of the National Academy of Sciences of the United States of America. 2021. 118. 21. e2100712118-e2100712118
  • Mari Takusagawa, Yusuke Kobayashi, Yoichiro Fukao, Kumi Hidaka, Masayuki Endo, Hiroshi Sugiyama, Takashi Hamaji, Yoshinobu Kato, Isamu Miyakawa, Osami Misumi, et al. HBD1 protein with a tandem repeat of two HMG-box domains is a DNA clip to organize chloroplast nucleoids in Chlamydomonas reinhardtii. Proceedings of the National Academy of Sciences of the United States of America. 2021. 118. 20. e2021053118-e2021053118
more...
MISC (10):
  • 高橋昂平, 鈴木重勝, 豊岡博子, 山本荷葉子, 浜地貴志, 大槻涼, 山口晴代, 河地正伸, 東山哲也, 野崎久義, et al. 緑藻Pleodorina starriiにおける3性共存進化に伴うゲノム中性決定領域の再編成. 日本植物学会大会研究発表記録(CD-ROM). 2023. 87th
  • HAMAJI, Takashi. Beyond Model Plants in 2050. BSJ-Review. 2019
  • HAMAJI, Takashi. Welcome to Kyoto Chlamydomonas Genome Editing Workshop!. New Photosynthesis News Letter. 2019. 6. 19-20
  • 浜地貴志, 西村芳樹. ゲノム編集の時代における「緑の酵母」クラミドモナスの復権. 生物工学会誌. 2018. 96. 8. 475
  • Tsuchikane Y, Hamaji T, Ota K, Kato S. Establishment of a Clonal Culture of Unicellular Conjugating Algae. Journal of visualized experiments : JoVE. 2018. 2018. 137
more...
Lectures and oral presentations  (76):
  • 雌雄二極化モデル系統群・ボルボックス系列緑藻の性分化を担う性染色体領域の進化学
    (学術変革領域研究(B)「性染色体サイクル」キックオフシンポジウム 2022)
  • A conserved RWP-RK transcription factor VSR1 controls gametic differentiation in volvocine algae
    (International Volvox Conference 2022 2022)
  • THREE SEX PHENOTYPES IN A HAPLOID ALGAL SPECIES GIVE INSIGHTS INTO THE EVOLUTIONARY TRANSITION TO A SELF-COMPATIBLE MATING SYSTEM
    (75th Annual Meeting of the Phycological Society of America 2021)
  • 3つの性表現型を持つ緑藻ボルボックス系列Pleodorina starriiの性決定機構の解析
    (日本植物学会第84回大会(オンライン) 2020)
  • 陸上植物系統において真核生物型DNAリガーゼIが葉緑体局在を獲得した分子基盤
    (日本植物学会第84回大会(オンライン) 2020)
more...
Work history (4):
  • 2023/01 - 現在 Donald Danforth Plant Science Center Umen lab Postdoctoral associate
  • 2022/11 - 2023/01 Independent Scientist
  • 2021/04 - 2022/09 Chuo University Research and Development Initiative Postdoctoral Fellow
  • 2021/02 - 2022/09 Chuo University Research and Development Initiative Postdoctoral Fellow
Awards (3):
  • 2014/09 - Botanical Society of Japan Young Scientist Award 2014 Comparative genomics of mating loci in the colonial volvocalean algae as a model lineage for an emergence of oogamy
  • 2011/12 - First International Volvox Conference Best Platform Presentation Mating type locus of Gonium pectorale.
  • 2006/05 - Eukaryotic Cell Special Recognition for Poster Presentations Identification of GpMID
Association Membership(s) (3):
Genetics Society of America ,  BOTANICAL SOCIETY OF JAPAN ,  THE JAPANESE SOCIETY OF PLANT PHYSIOLOGISTS
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