1. Knockdown of a β-Adrenergic-Like Octopamine Receptor Affects Locomotion and Reproduction of Tribolium castaneum
- Author
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Xiao-Qiang Liu, Qian-Qiao Huang, Ge-Ge Liu, Li-Sha Zheng, Hong-Bo Jiang, and Jin-Jun Wang
- Subjects
0301 basic medicine ,Male ,Receptors, G-Protein-Coupled ,chemistry.chemical_compound ,0302 clinical medicine ,RNA interference ,Cyclic AMP ,Biology (General) ,Receptor ,Spectroscopy ,Gene knockdown ,Tribolium ,biology ,Reproduction ,General Medicine ,Octopamine (drug) ,octopamine receptor ,Computer Science Applications ,Cell biology ,locomotion ,Coleoptera ,Chemistry ,RNA silencing ,Insect Proteins ,Female ,RNA Interference ,QH301-705.5 ,Catalysis ,Article ,Cell Line ,Inorganic Chemistry ,03 medical and health sciences ,Adrenergic Agents ,Receptors, Biogenic Amine ,Complementary DNA ,Animals ,Humans ,Red flour beetle ,Amino Acid Sequence ,Physical and Theoretical Chemistry ,QD1-999 ,Molecular Biology ,Octopamine ,RNA, Double-Stranded ,Organic Chemistry ,HEK 293 cells ,fungi ,biology.organism_classification ,030104 developmental biology ,HEK293 Cells ,chemistry ,red flour beetle ,Sequence Alignment ,030217 neurology & neurosurgery - 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.
- Published
- 2021