Research theme for competitive and other funds (9)：
2023 - 2027 Evolutionary mechanisms leading to a transition of the sex determination systems.
2019 - 2023 XY型からZW型への性決定システムの進化
2019 - 2022 Gonadal soma-derived factor expression is a potential biomarker for predicting the effects of endocrine-disrupting chemicals on gonadal differentiation in medaka
2016 - 2019 メダカ属魚類におけるXY型からZW型への性決定機構の進化
2013 - 2016 インドメダカSox3遺伝子における性決定機能獲得メカニズムの解明
2011 - 2013 Functional analysis of the sex-determining gene in Oryzias dancena using transgenic techniques
2011 - 2012 メダカ属魚類におけるZW性染色体の起源と進化過程の解明
2008 - 2011 インドメダカ性決定遺伝子のポジショナルクローニング
2006 - 2008 メダカ属魚類をモデルとした脊椎動物の染色体進化
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Papers (38)：
Daniel F. Mokodongan, Ilham V. Utama, Atsushi J. Nagano, Sau Pinn Woo, Shau Hwai Tan, Satoshi Ansai, Yusuke Takehana, Kazunori Yamahira. Rediscovery of Oryzias hubbsi with notes on its reproductive isolation with O. javanicus. Ichthyological Research. 2024
Jun Kitano, Satoshi Ansai, Yusuke Takehana, Yoji Yamamoto. Diversity and Convergence of Sex-Determination Mechanisms in Teleost Fish. Annual Review of Animal Biosciences. 2024. 12. 1. 233-259
Suhaila Rusni, Mieko Sassa, Toshiyuki Takagi, Masato Kinoshita, Yusuke Takehana, Koji Inoue. Establishment of cytochrome P450 1a gene-knockout Javanese medaka, Oryzias javanicus, which distinguishes toxicity modes of the polycyclic aromatic hydrocarbons, pyrene and phenanthrene. Marine pollution bulletin. 2022. 178. 113578-113578
Kazunori Yamahira, Satoshi Ansai, Ryo Kakioka, Hajime Yaguchi, Takeshi Kon, Javier Montenegro, Hirozumi Kobayashi, Shingo Fujimoto, Ryosuke Kimura, Yusuke Takehana, et al. Mesozoic origin and 'out-of-India' radiation of ricefishes (Adrianichthyidae). Biology letters. 2021. 17. 8. 20210212-20210212
Taijun Myosho, Minako Hattori, Jun Yamamoto, Misa Toda, Tetsuro Okamura, Yuta Onishi, Yusuke Takehana, Tohru Kobayashi. Effects of synthetic sex steroid hormone exposures on gonadal sex differentiation and dynamics of a male-related gene, Gonadal soma-derived factor (Gsdf) and an estrogen up-regulated gene, Choriogenine-H (ChgH) gene expression in the euryhaline Javafish medaka, Oryzias javanicus, based on genetic sexes. Chemosphere. 2021. 274. 129893-129893
Sasado Takao, Takehana Yusuke, Naruse Kiyoshi. Medaka as a model animal and the development of its biological resources. Cytometry Research. 2014. 24. 2. 1-7
Takehana Yusuke, Kitagawa Tadao. Medaka (Oryzias latipes): genetic introgression resultingfrom artificial transplantation. Japanese Journal of Ichthyology. 2010. 57. 1. 76-79
