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J Chem Ecol

Title:		"Single-Component Pheromone Consisting of Bombykal in a Diurnal Hawk Moth, Neogurelca himachala sangaica"
Author(s):		Uehara T; Kitahara H; Naka H; Matsuyama S; Ando T; Honda H;
Address:		"National Institute of Agrobiological Sciences (NIAS), Ohwashi 1-2, Tsukuba, Ibaraki, 305-8634, Japan. tue@affrc.go.jp. Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan. tue@affrc.go.jp. Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan. Faculty of Agriculture, Tottori University, Koyama Minami, Tottori, 680-8553, Japan. Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan. Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, 184-8588, Japan"
Journal Title:		J Chem Ecol
Year:		2016
Volume:		20160614
Issue:		6
Page Number:		517 - 522
DOI:		10.1007/s10886-016-0714-y
ISSN/ISBN:		1573-1561 (Electronic) 0098-0331 (Linking)
Abstract:		"Recent work has suggested that hawk moths share pheromone components but are sexually separated by qualitative and quantitative differences in their pheromone blends. During field assays on the sex pheromones of other species, a diurnal hawk moth, Neogurelca himachala sangaica (Lepidoptera: Sphingidae), was frequently captured, but the composition of the sex pheromone of this species was not known. Analysis of hexane extracts of the pheromone glands of calling female by gas chromatography (GC) using an electroantennographic detector (EAD) revealed two components that elicited EAD responses from male moth antennae. These components were identified by their mass spectra and retention indices on two GC columns as (10E,12Z)-10,12-hexadecadienal (E10,Z12-16:Ald) and a trace of its (10E,12E)-isomer (E10,E12-16:Ald) in 98:2 ratio. In field experiments, E10,Z12-16:Ald alone attracted male moths, and addition of E10,E12-16:Ald significantly reduced the attractiveness, even at the naturally-occurring ratio. Analysis of the data using a generalized linear mixed model showed that E10,Z12-16:Ald positively contributed to attractiveness, whereas E10,E12-16:Ald did so negatively, and it was concluded that the sex pheromone of N. himachala sangaica consists solely of E10,Z12-16:Ald, bombykal. The negative effect of E10,E12-16:Ald on attractiveness could promote the species-specificity of this single-component pheromone system"
Keywords:		"Alkadienes/*analysis/*pharmacology Animals Biological Assay Female Male Moths/*drug effects Sex Attractants/*analysis/*pharmacology Sexual Behavior, Animal/drug effects Lepidoptera Pheromone Single component Sphingidae;"
Notes:		"MedlineUehara, Takuya Kitahara, Hiroshi Naka, Hideshi Matsuyama, Shigeru Ando, Tetsu Honda, Hiroshi eng 2016/06/15 J Chem Ecol. 2016 Jun; 42(6):517-22. doi: 10.1007/s10886-016-0714-y. Epub 2016 Jun 14"