title: Olfactory channels associated with the Drosophila maxillary palp mediate short- and long-range attraction.
abstract: The vinegar fly Drosophila melanogaster is equipped with two peripheral olfactory organs, antenna and maxillary palp. The antenna is involved in finding food, oviposition sites and mates. However, the functional significance of the maxillary palp remained unknown. Here, we screened the olfactory sensory neurons of the maxillary palp (MP-OSNs) using a large number of natural odor extracts to identify novel ligands for each MP-OSN type. We found that each type is the sole or the primary detector for a specific compound, and detects these compounds with high sensitivity. We next dissected the contribution of MP-OSNs to behaviors evoked by their key ligands and found that MP-OSNs mediate short- and long-range attraction. Furthermore, the organization, detection and olfactory receptor (Or) genes of MP-OSNs are conserved in the agricultural pest D. suzukii. The novel short and long-range attractants could potentially be used in integrated pest management (IPM) programs of this pest species.
authors.affiliation: Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Jena, Germany.
authors.forename: Hany Km
authors.initials: HK
authors.lastname: Dweck
authors.affiliation: Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Jena, Germany.
authors.forename: Shimaa Am
authors.initials: SA
authors.lastname: Ebrahim
authors.affiliation: Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Jena, Germany.
authors.forename: Mohammed A
authors.initials: MA
authors.lastname: Khallaf
authors.affiliation: Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Jena, Germany.
authors.forename: Christopher
authors.initials: C
authors.lastname: Koenig
authors.affiliation: Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Jena, Germany.
authors.forename: Abu
authors.initials: A
authors.lastname: Farhan
authors.affiliation: Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Jena, Germany.
authors.forename: Regina
authors.initials: R
authors.lastname: Stieber
authors.affiliation: Mass Spectrometry Group, Max Planck Institute for Chemical Ecology, Jena, Germany.
authors.forename: Jerrit
authors.initials: J
authors.lastname: Weißflog
authors.affiliation: Mass Spectrometry Group, Max Planck Institute for Chemical Ecology, Jena, Germany.
authors.forename: Aleš
authors.initials: A
authors.lastname: Svatoš
authors.affiliation: Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Jena, Germany.
authors.forename: Ewald
authors.initials: E
authors.lastname: Grosse-Wilde
authors.affiliation: Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Jena, Germany.
authors.forename: Markus
authors.identifier: 0000-0002-6710-1071
authors.initials: M
authors.lastname: Knaden
authors.affiliation: Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Jena, Germany.
authors.forename: Bill S
authors.initials: BS
authors.lastname: Hansson
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D004331:Drosophila melanogaster / Q000502:physiology*; D055696:Olfactory Perception; D018034:Olfactory Receptor Neurons / Q000502:physiology*; D010675:Pheromones / Q000378:metabolism; D012903:Smell
chemical_list: D010675:Pheromones; C010411:insect attractants
keywords: D. melanogaster; D. suzukii; ecology; maxillary palp; neuroscience; olfaction