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- Title
Knockdown of a β-Adrenergic-Like Octopamine Receptor Affects Locomotion and Reproduction of Tribolium castaneum.
- Authors
Zheng, Li-Sha; Liu, Xiao-Qiang; Liu, Ge-Ge; Huang, Qian-Qiao; Wang, Jin-Jun; Jiang, Hong-Bo
- Abstract
The neurohormone octopamine regulates many crucial physiological processes in insects and exerts its activity via typical G-protein coupled receptors. The roles of octopamine receptors in regulating behavior and physiology in Coleoptera (beetles) need better understanding. We used the red flour beetle, Tribolium castaneum, as a model species to study the contribution of the octopamine receptor to behavior and physiology. We cloned the cDNA of a β-adrenergic-like octopamine receptor (TcOctβ2R). This was heterologously expressed in human embryonic kidney (HEK) 293 cells and was demonstrated to be functional using an in vitro cyclic AMP assay. In an RNAi assay, injection of dsRNA demonstrated that TcOctβ2R modulates beetle locomotion, mating duration, and fertility. These data present some roles of the octopaminergic signaling system in T. castaneum. Our findings will also help to elucidate the potential functions of individual octopamine receptors in other insects.
- Subjects
RED flour beetle; OCTOPAMINE; BEETLES; CYCLIC adenylic acid; COMPLEMENTARY DNA; POTENTIAL functions
- Publication
International Journal of Molecular Sciences, 2021, Vol 22, Issue 14, p7252
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms22147252