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© 2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Simple Summary

The fall armyworm, Spodoptera frugiperda, is a major insect pest worldwide whose monitoring is essential to detect populations and prevent new invasions. An efficient way of population monitoring is the use of sex pheromone lures. However, variation in the responses of S. frugiperda males to female sex pheromone compounds has been observed that may affect the monitoring process. Here, we identified mutations in the protein sequence of the odorant receptor tuned to the major sex pheromone component of S. frugiperda between the known Corn and Rice strains and investigated if they could explain the variation in the insect response. We did not reveal any difference in selectivity or sensitivity of the odorant receptors, suggesting that other pheromone receptors tuned to minor components of the pheromone blend are involved. A better knowledge of the functional properties of S. frugiperda pheromone receptors may help optimize synthetic pheromone lures, a critical step in the efficient monitoring and control of this global pest.

Details

Title
Functional Investigation of the Receptor to the Major Pheromone Component in the C-Strain and the R-Strain of the Fall Armyworm Spodoptera frugiperda
Author
Comte, Arthur 1 ; Delarue, Alizée 1 ; Marie-Christine, François 1 ; Monsempes, Christelle 1 ; Meslin, Camille 1   VIAFID ORCID Logo  ; Montagné, Nicolas 2   VIAFID ORCID Logo  ; Jacquin-Joly, Emmanuelle 1   VIAFID ORCID Logo 

 Institute of Ecology and Environmental Sciences of Paris (iEES-Paris), INRAE, Sorbonne Université, CNRS, IRD, UPEC, Université Paris Cité, 78026 Versaille, France; [email protected] (A.C.); [email protected] (A.D.); [email protected] (M.-C.F.); [email protected] (C.M.); [email protected] (C.M.) 
 Institute of Ecology and Environmental Sciences of Paris (iEES-Paris), INRAE, Sorbonne Université, CNRS, IRD, UPEC, Université Paris Cité, 78026 Versaille, France; [email protected] (A.C.); [email protected] (A.D.); [email protected] (M.-C.F.); [email protected] (C.M.); [email protected] (C.M.); Institut Universitaire de France, France 
First page
304
Publication year
2025
Publication date
2025
Publisher
MDPI AG
e-ISSN
20754450
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3181494876
Copyright
© 2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.