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- Title
Characterisations of odorant-binding proteins in the tsetse fly Glossina morsitans morsitans.
- Authors
Liu, Renhu; Lehane, Stella; Xiaoli He; Lehane, Mike; Hertz-Fowler, Christiane; Berriman, Matthew; Pickett, John A.; Field, Linda M.; Jing-Jiang Zhou
- Abstract
Odorant-binding proteins (OBPs) play an important role in insect olfaction by mediating interactions between odorants and odorant receptors. We report for the first time 20 OBP genes in the tsetse fly Glossina morsitans morsitans. qRT-PCR revealed that 8 of these genes were highly transcribed in the antennae. The transcription of these genes in the antennae was significantly lower in males than in females and there was a clear correlation between OBP gene transcription and feeding status. Starvation over 72 h post-blood meal (PBM) did not significantly affect the transcription. However, the transcription in the antennae of 10-week-old flies was much higher than in 3-day-old flies at 48 h PBM and decreased sharply after 72 h starvation, suggesting that the OBP gene expression is affected by the insect’s nutritional status. Sequence comparisons with OBPs of other Dipterans identified several homologs to sex pheromone-binding proteins and OBPs of Drosophila melanogaster.
- Subjects
CARRIER proteins; TSETSE-flies; ODORS; PROTEIN binding; BIOLOGICAL transport
- Publication
Cellular & Molecular Life Sciences, 2010, Vol 67, Issue 6, p919
- ISSN
1420-682X
- Publication type
Article
- DOI
10.1007/s00018-009-0221-1