Oct 31, 2012

Candidate olfaction genes identified within the Helicoverpa armigera Antennal Transcriptome

PloS One
Yang LiuGuirong Wang

Abstract

Antennal olfaction is extremely important for insect survival, mediating key behaviors such as host preference, mate choice, and oviposition site selection. Multiple antennal proteins are involved in olfactory signal transduction pathways. Of these, odorant receptors (ORs) and ionotropic receptors (IRs) confer specificity on olfactory sensory neuron responses. In this study, we identified the olfactory gene repertoire of the economically important agricultural pest moth, Helicoverpa armigera, by assembling the adult male and female antennal transcriptomes. Within the male and female antennal transcriptomes we identified a total of 47 OR candidate genes containing 6 pheromone receptor candidates. Additionally, 12 IR genes as well as 26 odorant-binding proteins and 12 chemosensory proteins were annotated. Our results allow a systematic functional analysis across much of conventional ORs repertoire and newly reported IRs mediating the key olfaction-mediated behaviors of H. armigera.

  • References55
  • Citations87

References

Mentioned in this Paper

Genome
Maxilla
Actins
Moths
Neurons
Ncbi Taxonomy
Promega
Avian Crop
Molecular_function
Signal Transduction Pathways

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