Genetic Basis Regulating the Sex Pheromone Blend in Ostrinia zealis (Lepidoptera: Crambidae) and Its Allies Inferred From Crossing Experiments

Evolutionary diversification of sexual communication systems in moths is perplexing because signal and response are under stabilizing selection in many species, and this is expected to constrain evolutionary change. In the moth Heliothis virescens , we consistently found high phenotypic variability in the female sex pheromone blend within each of four geographically distant populations. Here, we assess the heritability, genetic basis and behavioural consequences of this variation. Artificial selection with field-collected moths dramatically increased the relative amount of the saturated compound 16:Ald and decreased its unsaturated counterpart Z11–16:Ald, the major sex pheromone component (high line). In a cross between the high- and low-selected lines, one quantitative trait locus (QTL) explained 11–21% of the phenotypic variance in the 16:Ald/Z11–16:Ald ratio. Because changes in activity of desaturase enzymes could affect this ratio, we measured their expression levels in pheromone glands and mapped desaturase genes onto our linkage map. A delta-11-desaturase had lower expression in females producing less Z11–16:Ald; however, this gene mapped to a different chromosome than the QTL. A model in which the QTL is a trans-acting repressor of delta-11 desaturase expression explains many features of the data. Selection favouring heterozygotes which produce more unsaturated components could maintain a polymorphism at this locus.

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The Potential for Genetic Manipulation of the Redbanded Leafroller Moth Sex Pheromone Blend

Evolutionary Genetics of Invertebrate Behavior ◽

10.1007/978-1-4899-3487-1_25 ◽

1986 ◽

pp. 263-272 ◽

Cited By ~ 15

Author(s):

Wendell L. Roelofs ◽

Jia-Wei Du ◽

Charles Linn ◽

Thomas J. Glover ◽

Louis B. Bjostad

Keyword(s):

Sex Pheromone ◽

Genetic Manipulation ◽

Redbanded Leafroller ◽

Sex Pheromone Blend ◽

Pheromone Blend

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A plant volatile alters the perception of sex pheromone blend ratios in a moth

Journal of Comparative Physiology A ◽

10.1007/s00359-020-01420-y ◽

2020 ◽

Vol 206 (4) ◽

pp. 553-570 ◽

Cited By ~ 1

Author(s):

Antoine Hoffmann ◽

Thomas Bourgeois ◽

Alicia Munoz ◽

Sylvia Anton ◽

Jeremy Gevar ◽

...

Keyword(s):

Sex Pheromone ◽

Plant Volatile ◽

Blend Ratios ◽

Sex Pheromone Blend ◽

Pheromone Blend

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Isolation, identification, synthesis, and bioefficacy of female Diacrisia obliqua (Arctiidae) sex pheromone blend. An Indian agricultural pest

Pure and Applied Chemistry ◽

10.1351/pac200173071157 ◽

2001 ◽

Vol 73 (7) ◽

pp. 1157-1162 ◽

Cited By ~ 3

Author(s):

J. S. Yadav ◽

M. Y. Valli ◽

A. R. Prasad

Keyword(s):

Sex Pheromone ◽

Female Sex Pheromone ◽

Wittig Olefination ◽

Pheromone Components ◽

Diacrisia Obliqua ◽

Seed Crops ◽

Key Steps ◽

Sex Pheromone Blend ◽

Pheromone Blend ◽

Oil Seed Crops

Diacrisia obliqua is a polyphagous pest especially on oil seed crops. Adult female sex pheromone blend consists of five pheromone components, which include (3Z,6Z)-cis-9,10-epoxyl,3,6-henicosatriene and (3Z,6Z)-cis-9,10-epoxy3,6-henicosadiene. Synthesis of these enantiomers was achieved through alkylative epoxide rearrangement and stereoselective Wittig olefination reactions as key steps. Bioefficacy experiments both at laboratory and minifield were very positive.

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Attraction of male Mayetiola thujae (Diptera: Cecidomyiidae) to the sex-pheromone blend of (2S,12S)-, (2S,13S)-, and (2S,14S)-diacetoxyheptadecane is reduced in the presence of the SR- or RR-stereoisomers

The Canadian Entomologist ◽

10.4039/n06-035 ◽

2007 ◽

Vol 139 (5) ◽

pp. 685-689

Author(s):

Regine Gries ◽

Robb G. Bennett ◽

Grigori Khaskin ◽

Gerhard Gries

Keyword(s):

British Columbia ◽

Sex Pheromone ◽

Seed Orchard ◽

Field Trapping ◽

Thuja Plicata ◽

Red Cedar ◽

Synthetic Pheromone ◽

Western Red Cedar ◽

Sex Pheromone Blend ◽

Pheromone Blend

AbstractIn a field trapping experiment in an abandoned seed orchard of western red-cedar, Thuja plicata Donn × D. Don, in British Columbia, we show that attraction of male red-cedar cone midges, Mayetiola thujae (Hedlin), to the pheromone blend (2S,12S)-, (2S,13S)-, and (2S,14S)-diacetoxyheptadecane is reduced in the presence of a blend of all other stereoisomers, or of the three SR- or RR-stereoisomers. The three RS-stereoisomers, in contrast, had no significant effect. Thus, synthetic pheromone for monitoring M. thujae populations must not contain the SR- or RR-stereoisomers of 2,12-, 2,13-, and 2,14-diacetoxyheptadecane. This result will allow development of a less expensive design for synthesizing the pheromone.

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