Chemical ecology of sexual isolation and reproductive interference in pulmonates
| Project/Area Number |
17H01448
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Ecology/Environment
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| Research Institution | Shinshu University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
吉村 仁 長崎大学, 熱帯医学研究所, 客員教授 (10291957)
朴 虎東 信州大学, 学術研究院理学系, 教授 (20262686)
渡辺 信子 神奈川大学, 理学部, 助教 (40291744)
伊集院 久子 神奈川大学, 付置研究所, 研究員 (60398948)
國頭 恭 信州大学, 学術研究院理学系, 教授 (90304659)
蟻川 謙太郎 総合研究大学院大学, 先導科学研究科, 教授 (20167232)
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| Project Period (FY) |
2017-04-01 – 2022-03-31
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| Project Status |
Completed (Fiscal Year 2021)
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| Budget Amount *help |
¥44,590,000 (Direct Cost: ¥34,300,000、Indirect Cost: ¥10,290,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2019: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2018: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2017: ¥33,930,000 (Direct Cost: ¥26,100,000、Indirect Cost: ¥7,830,000)
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| Keywords | 有肺類 / 性フェロモン / mate recognition |
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| Outline of Final Research Achievements |
Stylommatophorans, which are simultaneous reciprocal hermaphrodites, court and mate after approaching each other depending on chemical recognition of volatile excretes from conspecifics. Interspecific F1 mature hybrids attract adults of parental species. We achieved technical renovations of the original bioassey device and experimental protocols to examine behavioral responses to volatiles. These hermaphrodites in proximity excrete attracting compounds and also locates each other by sensing the compounds from the others. Based on this characteristic we developed a simple method to condition the subject mature animals to be ready for those interactions with other adults. We made hypothetically presumed air disturbance where two airflows meet inside the alfactometer and developed a method to manipulate air flow parameters to resolve the problem of volatile leaks back to the control air route.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究により、累代飼育法に独自の改良を重ねたコハクオナジマイマイとオナジマイマイを、生殖的隔離機構の生態・行動・遺伝解析が可能な雌雄同体動物をのモデル動物として確立した。柄眼類（カタツムリ・ナメクジ）の性フェロモンの化学特性・生態機能に関する知見は皆無である。本2種の利点を生かし、前例のないオルファクトメータを実用化し、性フェロモンによる配偶者識別の生物検定法を確立した。性フェロモンの産生と応答にみる種間雑種個体の特徴を明らかにした。以上により、性フェロモンを介しての交配前の生殖隔離種機構を理解するためのさらなる進化生物学的および化学生態学的な研究を進める基盤を固めた。
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Report
(6 results)
Research Products
(11 results)
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[Journal Article] pH is the dominant factor controlling the levels of phytate-like and DNA-like phosphorus in 0.5M NaHCO3-extracts of soils: evaluation with phosphatase-addition approach.2021
Author(s)
Kunito, T., Haraguchi, S., Hanada, K., Fujita, K., Moro, H., Nagaoka, N., and Otsuka, S
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Journal Title
Geoderma
Volume: 398
Pages: 115113-115113
Related Report
Peer Reviewed
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[Journal Article] Origin of Deep Methane Associated with a Unique Community of Microorganisms in an Organic- and Iodine-Rich Aquifer2021
Author(s)
Urai Atsushi, Yoshinori Takano, Hiroyuki Imachi, Shun’ichi Ishii, Yohei Matsui, Miyuki Ogawara, Eiji Tasumi, Yosuke Miyairi, Nanako O. Ogawa, Toshihiro Yoshimura, Fumio Inagaki, Yusuke Yokoyama, Kenjiro Kawano, Daisuke Murai, Ho-Dong Park, and Naohiko Ohkouchi
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Journal Title
ACS Earth and Space Chemistry
Volume: 5
Pages: 1-11
Related Report
Peer Reviewed
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