2013 - 2017 Identification of sawfly larvae by molecular data
2012 - 2014 標本から評価する絶滅危惧種が失った遺伝的多様性
2011 - 2014 同所的近縁種の生息地分離と形質置換をもたらす生態学的要因
Papers (38):
The complete mitochondrial genome sequence of Suisha coreana (Matsumura, 1927) from Tsushima Islands, Japan. 長崎県生物学会誌 = Transactions of the Nagasaki Biological Society. 2021. 88. 88. 28-32
Tsuyoshi Takeuchi, Takuma Sasaki, Masahiro Mitsuhata, Takuya Kiyoshi, Mana Nishimoto, Tetsuro Nomura, Jun-ichi Takahashi. Low mitochondrial DNA variation in the endangered bumble bee Bombus cryptarum florilegus. JOURNAL OF APICULTURAL RESEARCH. 2019. 58. 4. 591-596
Hisashi Okuyama, Takuya Kiyoshi, Jun-Ichi Takahashi, Yoshitaka Tsubaki. A comparison of complete mitochondrial DNA sequences of Mnais costalis Selys, 1869 (Odonata: Calopterygidae) from three different populations (one allopatric and two sympatric). Mitochondrial DNA Part B: Resources. 2019. 4. 2. 3104-3105
Hisashi Okuyama, Takuya Kiyoshi, Jun-Ichi Takahashi, Yoshitaka Tsubaki. Complete mitochondrial genome sequence of the broad-winged damselfly, Mnais pruinosa Selys, 1853 (Odonata: Calopterygidae). Mitochondrial DNA Part B: Resources. 2019. 4. 2. 3101-3103