| Project/Area Number |
22KJ3236
|
|---|
| Project/Area Number (Other) |
20J00660 (2020-2022)
|
|---|
| Research Category |
Grant-in-Aid for JSPS Fellows
|
| Allocation Type | Multi-year Fund (2023)
Single-year Grants (2020-2022) |
|---|
| Section | 国内 |
|---|
| Review Section |
Basic Section 39050:Insect science-related
|
|---|
| Research Institution | Okinawa Institute of Science and Technology Graduate University |
|---|
Principal Investigator |
水元 惟暁 沖縄科学技術大学院大学, 沖縄科学技術大学院大学、進化ゲノミクスユニット, 研究員
|
|---|
| Project Period (FY) |
2023-03-08 – 2024-03-31
|
| Project Status |
Discontinued (Fiscal Year 2023)
|
| Budget Amount *help |
¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Fiscal Year 2024: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2023: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2022: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2021: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2020: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
|
|---|
| Keywords | Amber / Fossil / Tunneling / Termite / Tandem run / Same sex sexual behavior / Mating / Python / Comparative analysis / Movement tracking / Evolution / Collective behavior / Nest construction / Rove beetles / Social insects / シロアリ / 集団行動 / 進化 / 巣建設 / 系統種間比較 / 好白蟻性昆虫 / 感染症モデル / 社会寄生 |
|---|
| Outline of Research at the Start |
複雑な形質の進化プロセスの解明は、進化生物学における難題の1つである。本研究は、複雑なパターンを作り出す集団行動である、シロアリの構造物建設の進化プロセスを明らかにすることを目的とする。
具体的には、シロアリの蟻道建設に着目し、世界各地から全ての科を含む下等シロアリを採集し、建設行動の観察から行動レパートリーを比較する。そして、野外条件では顕著な建設行動を示さない種を操作し、構造物を実験的に建設させ、構造の完成度を評価することで、建設行動の完成度に関わる行動要因を推定する。以上について、最新の分子系統樹と照らし合わせ、建設行動の進化プロセスを再構築する。
|
| Outline of Annual Research Achievements |
This research project aims to infer the evolutionary process of collective building in termites through a comparative analysis of nest construction across various species worldwide.
Until last year, I focused on (i) compiling literature information to build a comprehensive dataset for termite evolution and (ii) behavioral observations of Japanese termites, due to travel restrictions. This year, I finally managed field sampling in Australia. The outcome is summarized as follows.
First, I obtained the videos and time-lapse images for tunneling behavior in Mastotermes darwiniensis, Porotermes adamsoni, and Stolotermes victoriensis. These three species are in ecologically and phylogenetically critical positions in termite diversity. Combining the data obtained from Japanese species, I could comprehend most termite lineages. The results are under analysis.
Second, I had a couple of publications relating to the project. For example, the paper reporting the development of TManual (see last year’s report) has been published (Mizumoto, 2023, Ecol Evol). Also, a paper studying inference behaviors from fossil records has been published (Mizumoto et al., 2024, PNAS), contributing to the understanding of the evolution of collective behavior.
Third, we added data from> 20 species in Malaysia and Australia to examine how the evolution of nesting biology can result in the differentiated movement capacity of termites, including two more independent evolutionary events of nesting strategies.
|
