Tachykinin signaling inhibits task-specific behavioral responsiveness in honeybee workers
文献类型： 外文期刊
作者： Han, Bin 1 ; Wei, Qiaohong 1 ; Wu, Fan 1 ; Hu, Han 1 ; Ma, Chuan 1 ; Meng, Lifeng 1 ; Zhang, Xufeng 1 ; Feng, Mao 1 ; Fang, 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Apicultural Res, Minist Agr, Key Lab Pollinating Insect Biol, Beijing, Peoples R China
2.Univ N Carolina, Dept Biol, Greensboro, NC 27412 USA
3.China Jiliang Univ, Coll Life Sci, Biometrol & Inspect & Quarantine, Hangzhou, Peoples R China
4.Shanxi Agr Univ, Shanxi Acad Agr Sci, Inst Hort Res, Taiyuan, Peoples R China
5.Univ Alberta, Dept Biol Sci, Edmonton, AB, Canada
期刊名称：ELIFE （ 影响因子：7.08； 五年影响因子：8.175 ）
ISSN： 2050-084X
年卷期： 2021 年 10 卷
页码：
收录情况： SCI
摘要： Behavioral specialization is key to the success of social insects and leads to division of labor among colony members. Response thresholds to task-specific stimuli are thought to proximally regulate behavioral specialization, but their neurobiological regulation is complex and not well understood. Here, we show that response thresholds to task-relevant stimuli correspond to the specialization of three behavioral phenotypes of honeybee workers in the well-studied and important Apis mellifera and Apis cerana. Quantitative neuropeptidome comparisons suggest two tachykinin-related peptides (TRP2 and TRP3) as candidates for the modification of these response thresholds. Based on our characterization of their receptor binding and downstream signaling, we confirm a functional role of tachykinin signaling in regulating specific responsiveness of honeybee workers: TRP2 injection and RNAi-mediated downregulation cause consistent, opposite effects on responsiveness to task-specific stimuli of each behaviorally specialized phenotype but not to stimuli that are unrelated to their tasks. Thus, our study demonstrates that TRP signaling regulates the degree of task-specific responsiveness of specialized honeybee workers and may control the context specificity of behavior in animals more generally.
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