title: A Conserved Odorant Receptor Tuned to Floral Volatiles in Three Heliothinae Species.
abstract: Odorant receptors (ORs) play an important role in insects to monitor and adapt to the external environment, such as host plant location, oviposition-site selection, mate recognition and natural enemy avoidance. In our study, we identified and characterized OR12 from three closely-related species, Helicoverpa armigera, Helicoverpa assulta, Heliothis virescens, sharing between 90 and 98% of their amino acids. The tissue expression pattern analysis in H. armigera showed that HarmOR12 was strongly expressed both in male and female antennae, but not in other tissues. Functional analysis performed in the heterologous Xenopus expression system showed that all three OR12 were tuned to six structurally related plant volatiles. Electroantennogram recordings from male and female antennae of H. armigera closely matched the data of in vitro functional studies. Our results revealed that OR12 has a conserved role in Heliothinae moths and might represent a suitable target for the control of these crop pests.
authors.affiliation: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
authors.forename: Song
authors.initials: S
authors.lastname: Cao
authors.affiliation: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Liu
authors.affiliation: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
authors.forename: Mengbo
authors.initials: M
authors.lastname: Guo
authors.affiliation: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
authors.forename: Guirong
authors.initials: G
authors.lastname: Wang
mesh_terms: D000085:Acetates / Q000494:pharmacology; D000200:Action Potentials / Q000187:drug effects / Q000502:physiology; D000080462:Acyclic Monoterpenes; D000595:Amino Acid Sequence; D000818:Animals; D017124:Conserved Sequence; D005260:Female; D015870:Gene Expression; D019476:Insect Proteins / Q000235:genetics* / Q000378:metabolism; D008297:Male; D039821:Monoterpenes / Q000494:pharmacology; D009036:Moths / Q000502:physiology*; D009865:Oocytes / Q000166:cytology / Q000187:drug effects / Q000502:physiology; D018408:Patch-Clamp Techniques; D010802:Phylogeny; D018035:Receptors, Odorant / Q000235:genetics* / Q000378:metabolism; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid; D013729:Terpenes / Q000494:pharmacology; D019076:Transgenes; D055549:Volatile Organic Compounds / Q000494:pharmacology*; D014982:Xenopus laevis
chemical_list: D000085:Acetates; D000080462:Acyclic Monoterpenes; D019476:Insect Proteins; D039821:Monoterpenes; D018035:Receptors, Odorant; D013729:Terpenes; D055549:Volatile Organic Compounds; C425828:3-hexenylacetate; C018584:linalool; C063573:3,7-dimethyloctan-1-ol; C007836:geraniol; C007078:citronellol