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Fukaya M, Kiriyama S, Yagami S, Iwata R, Yasui H, Tokoro M, Zou Y, Millar JG. Identification of a Male-Produced Aggregation Sex Pheromone in Rosalia batesi, an Endemic Japanese Longhorn Beetle. INSECTS 2023; 14:867. [PMID: 37999066 PMCID: PMC10671707 DOI: 10.3390/insects14110867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/07/2023] [Accepted: 11/07/2023] [Indexed: 11/25/2023]
Abstract
The longhorned beetle Rosalia batesi Harold (Coleoptera; Cerambycidae) is endemic to Japan, where its range extends from Hokkaido to Kyushu. The colorful adults are well-known to entomologists and collectors worldwide. It is a hardwood-boring species with larvae that develop in dead broad-leaf trees. In laboratory bioassays, females were attracted to males, which suggested that males produce a sex pheromone. The congeneric species R. alpina is native to Europe, and another congener, R. funebris, is distributed in North America. The pheromone components produced by males of these species had been previously identified as two compounds from different biosynthetic pathways. In the present study, volatiles were collected from beetles of both sexes, and the analyses of the resulting extracts revealed a single male-specific compound, which was identified as 3,5-dimethyl-6-(1-methylbutyl)-pyran-2-one; this is the same compound as the pheromone of the European R. alpina. This alkylated pyrone structure is, so far, unique among known cerambycid pheromones. In field bioassays with traps baited with the racemic synthetic pheromone, significant numbers of both sexes of R. batesi were attracted in an approximately equal ratio, indicating that the compound is an aggregation-sex pheromone rather than a sex pheromone.
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Affiliation(s)
- Midori Fukaya
- Department of Forest Science and Resources, College of Bioresource Sciences, Nihon University, Fujisawa 252-0880, Kanagawa, Japan; (M.F.); (R.I.)
| | - Satoshi Kiriyama
- Department of Forest Science and Resources, College of Bioresource Sciences, Nihon University, Fujisawa 252-0880, Kanagawa, Japan; (M.F.); (R.I.)
| | - Saki Yagami
- Department of Forest Science and Resources, College of Bioresource Sciences, Nihon University, Fujisawa 252-0880, Kanagawa, Japan; (M.F.); (R.I.)
| | - Ryûtarô Iwata
- Department of Forest Science and Resources, College of Bioresource Sciences, Nihon University, Fujisawa 252-0880, Kanagawa, Japan; (M.F.); (R.I.)
| | - Hiroe Yasui
- Institute for Plant Protection, National Agriculture and Food Research Organization, Tsukuba 305-8666, Ibaraki, Japan
| | - Masahiko Tokoro
- Forestry & Forest Products Research Institute, Tsukuba 305-8687, Ibaraki, Japan;
| | - Yunfan Zou
- Departments of Entomology and Chemistry, University of California, Riverside, CA 92506, USA (J.G.M.)
| | - Jocelyn G. Millar
- Departments of Entomology and Chemistry, University of California, Riverside, CA 92506, USA (J.G.M.)
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Leith NT, Macchiano A, Moore MP, Fowler-Finn KD. Temperature impacts all behavioral interactions during insect and arachnid reproduction. CURRENT OPINION IN INSECT SCIENCE 2021; 45:106-114. [PMID: 33831604 DOI: 10.1016/j.cois.2021.03.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 03/17/2021] [Accepted: 03/23/2021] [Indexed: 05/26/2023]
Abstract
Temperature shapes the processes and outcomes of behaviors that occur throughout the progression of insect and arachnid mating interactions and reproduction. Here, we highlight how temperature impacts precopulatory activity levels, competition among rivals, communication with potential mates, and the relative costs and benefits of mating. We review how both the prevailing temperature conditions during reproductive activity and the temperatures experienced early in life influence mating-related behavior. To effectively predict the consequences of global warming for insect and arachnid mating behavior, we advocate for future work that universally integrates a function-valued approach to measuring thermal sensitivity. A function-valued approach will be especially useful for understanding how fine-scale temperature variation shapes current and future selection on mating interactions.
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Affiliation(s)
- Noah T Leith
- Department of Biology, Saint Louis University, United States.
| | | | - Michael P Moore
- Living Earth Collaborative, Washington University in St. Louis, United States
| | - Kasey D Fowler-Finn
- Department of Biology, Saint Louis University, United States; Living Earth Collaborative, Washington University in St. Louis, United States
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