Altered olfactory receptor neuron responsiveness in rare Ostrinia nubilalis males attracted to the O. furnacalis pheromone blend

Domingue, Michael J.; Musto, Callie J.; Linn, Charles E.; Roelofs, Wendell L.; Baker, Thomas C.

doi:10.1016/j.jinsphys.2007.05.013

Cited by 22 publications

(25 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sensory specialization may evolve in response to selection for locating and identifying food and sexual partners, and avoiding predators (Dekker et al, 2006;Domingue et al, 2007;GoldmanHuertas et al, 2015;Schäffler et al, 2015). In the case of male orchid bees, olfactory specialization is expected because detecting and finding scattered perfume sources may entail traveling long distances (Pokorny et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

Olfactory specialization for perfume collection in male orchid bees

Mitko

Weber

Ramírez

et al. 2016

Journal of Experimental Biology

View full text Add to dashboard Cite

Insects rely on the olfactory system to detect a vast diversity of airborne molecules in their environment. Highly sensitive olfactory tuning is expected to evolve when detection of a particular chemical with great precision is required in the context of foraging and/or finding mates. Male neotropical orchid bees (Euglossini) collect odoriferous substances from multiple sources, store them in specialized tibial pouches and later expose them at display sites, presumably as mating signals to females. Previous analysis of tibial compounds among sympatric species revealed substantial chemical disparity in chemical composition among lineages with outstanding divergence between closely related species. Here, we tested whether specific perfume phenotypes coevolve with matching olfactory adaptations in male orchid bees to facilitate the location and harvest of speciesspecific perfume compounds. We conducted electroantennographic (EAG) measurements on males of 15 sympatric species in the genus Euglossa that were stimulated with 18 compounds present in variable proportions in male hind tibiae. Antennal response profiles were species-specific across all 15 species, but there was no conspicuous differentiation between closely related species. Instead, we found that the observed variation in EAG activity follows a Brownian motion model of trait evolution, where the probability of differentiation increases proportionally with lineage divergence time. However, we identified strong antennal responses for some chemicals that are present as major compounds in the perfume of the same species, thus suggesting that sensory specialization has occurred within multiple lineages. This sensory specialization was particularly apparent for semi-volatile molecules ('base note' compounds), thus supporting the idea that such compounds play an important role in chemical signaling of euglossine bees. Overall, our study found no close correspondence between antennal responses and behavioral preferences/tibial contents, but confirms the utility of EAG profiling for discovering certain behaviorally active compounds.

show abstract

Section: Discussionmentioning

confidence: 99%

Olfactory specialization for perfume collection in male orchid bees

Mitko

Weber

Ramírez

et al. 2016

Journal of Experimental Biology

View full text Add to dashboard Cite

show abstract

“…Substantial inference on ORs expressed in different pheromonesensitive ORNs can be made based on the vast knowledge on the electrophysiological responses of ORNs in the two congeners, O. nubilalis and O. furnacalis (Hansson et al, 1987;Hallberg et al, 1994;Takanashi et al, 2006;Domingue et al, 2007aDomingue et al, ,b, 2008. O. nubilalis, in particular, is a good reference because its pheromone communication system is identical to that of O. scapulalis, in terms of pheromone composition, the presence of pheromone polymorphism, and specific inhibition of attraction by Z9-14:OAc.…”

Section: Discussionmentioning

confidence: 99%

Broadly and narrowly tuned odorant receptors are involved in female sex pheromone reception in Ostrinia moths

Miura

Nakagawa

Touhara

et al. 2010

Insect Biochemistry and Molecular Biology

100

View full text Add to dashboard Cite

“…ORs appear to be narrowly and broadly tuned, with some responding nonspecifically to (E) and (Z)-11-or -12-tetradecenyl acetate, as found in O. scapulalis (Miura et al, 2010;Wanner et al, 2010); the latter E and Z12-14:OAc constitute the pheromone components of a close relative of the ECB, the Asian corn borer O. furnacalis (Ishikawa et al, 1999b). Previous electrophysiological recordings of ORNs indicated that ECB males possess ORNs responsive to E and Z12-14: OAc, and that these ORNs are, indeed, the same large-and small-spiking ORNs responsive to the ECB pheromone components (Domingue et al, 2006(Domingue et al, , 2007b. Some rare ECB males may be attracted to the Asian corn borer blend (Linn et al, 2003; this alteration in the normal behavior might be caused by a firing ratio of ORNs responsive to E and Z12-14:OAc close to the ratio observed in response to the attractive ECB blend (Domingue et al, 2007b).…”

Section: Smelling the Pheromone: The Male Olfactory Systemmentioning

confidence: 94%

“…Previous electrophysiological recordings of ORNs indicated that ECB males possess ORNs responsive to E and Z12-14: OAc, and that these ORNs are, indeed, the same large-and small-spiking ORNs responsive to the ECB pheromone components (Domingue et al, 2006(Domingue et al, , 2007b. Some rare ECB males may be attracted to the Asian corn borer blend (Linn et al, 2003; this alteration in the normal behavior might be caused by a firing ratio of ORNs responsive to E and Z12-14:OAc close to the ratio observed in response to the attractive ECB blend (Domingue et al, 2007b).…”

Section: Smelling the Pheromone: The Male Olfactory Systemmentioning

confidence: 97%

Journey in the Ostrinia World: From Pest to Model in Chemical Ecology

Lassance

2010

J Chem Ecol

View full text Add to dashboard Cite

The European corn borer Ostrinia nubilalis (ECB; Lepidoptera: Crambidae) is a widely recognized pest of agricultural significance over much of the northern hemisphere. Because of the potential value of pheromone-based control, there has been considerable effort devoted to elucidation of the ECB chemical ecology. The species is polymorphic regarding its female-produced pheromone. Partly because of this feature, over the years the ECB has become a model to study pheromone evolution. This review should assist in identifying new areas of pheromone research by providing an overview of the literature produced on this subject for the ECB since the late 1960's.

show abstract

Altered olfactory receptor neuron responsiveness in rare Ostrinia nubilalis males attracted to the O. furnacalis pheromone blend

Cited by 22 publications

References 33 publications

Olfactory specialization for perfume collection in male orchid bees

Olfactory specialization for perfume collection in male orchid bees

Broadly and narrowly tuned odorant receptors are involved in female sex pheromone reception in Ostrinia moths

Journey in the Ostrinia World: From Pest to Model in Chemical Ecology

Contact Info

Product

Resources

About