Chemical ecology of hybrid vigor and breakdown in sex-pheromone functions

2016 Fiscal Year Final Research Report

• Project/Area Number: 24370007
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Ecology/Environment
• Research Institution: Shinshu University
• Principal Investigator: ASAMI Takahiro 信州大学, 学術研究院理学系, 教授 (10222598)
• Co-Investigator(Kenkyū-buntansha): 吉村 仁 静岡大学, 創造科学技術大学院, 教授 (10291957) ; 伊集院 久子 神奈川大学, 付置研究所, 研究員 (60398948) ; 渡辺 信子 神奈川大学, 理学部, 助教 (40291744) ; 松本 正勝 神奈川大学, 理学部, 名誉教授 (10260986)
• Project Period (FY): 2012-04-01 – 2017-03-31
• Keywords: 性フェロモン

Outline of Final Research Achievements

Our study obtained experimental evidence for the following conclusions. Pulmonate land snails Bradybaena similaris and B. pellucida discriminate each other and mate with conspecifics by means of airborne secretes. However, when the two species copulate, B. pellucida generates hybrids which can produce normal progeny. Adult F1 hybrids attract both the parental species by airborne secretes. On the other hand, in bioassay, adult hybrids recognize neither adults of B. pellucida nor B. similaris, which suggest that these hybrids are not able to sense airborne secretes from these parental species. By GC-MS analysis, we found adult specific coumpounds which are secreted uniquely by either one of the parental species, as well as one commonly secreted substance by both the parental species.

Free Research Field

進化生物学