Influence of RNA interference-mediated reduction ofOr11 on the expression of transcription factorKr-h1 inApis melliferadrones
文献类型： 外文期刊
第一作者： Liu, J. F.
作者： Liu, J. F.;Wang, Z. L.;He, X. J.;Zeng, Z. J.;Liu, J. F.;Wan, X. J.
作者机构：
关键词： Apis mellifera; Drone; 9-ODA; Odorant receptor11; Kruppel-homolog1; RNA interference
期刊名称：INSECTES SOCIAUX （ 影响因子：1.643； 五年影响因子：1.634 ）
ISSN： 0020-1812
年卷期： 2020 年 67 卷 3 期
页码：
收录情况： SCI
摘要： 9-Oxo-2-decenoic acid (9-ODA, the predominant component of honeybee queen mandibular pheromones) acts as a sex pheromone attracting drones during mating flights in midair.Odorant receptor11 (Or11), which is located on the membrane of antennal olfaction receptor neurons in bees, can specifically recognize 9-ODA. At present, the molecular pathway of honeybee drones responding to 9-ODA is still unclear. Studies have demonstrated that 9-ODA could downregulate the expression ofKruppel-homolog1 (Kr-h1, a transcription factor related to the regulation of reproduction and division of labor mediated by juvenile hormone) gene in the mushroom of honeybee brain. We speculate thatKr-h1may be the downstream gene ofOr11, which is involved in the pathway of drones responding to 9-ODA. Therefore, we analyzed the influence of 9-ODA on the expression ofOr11 andKr-h1 in the antennae of sexually immature (4 days) and mature (14 days) male honeybees (Apis mellifera) by quantitative polymerase chain reaction (qPCR). The results demonstrated that 9-ODA significantly downregulated the expression ofOr11 andKr-h1 in the antennae of sexually immature and mature drones. Additionally, siRNA-Or11 was injected into the antennae and brain tissues of 8-day-old drone pupae, and the expression patterns ofOr11,Kr-h1 andBroad-Complex(Br-c, downstream gene ofKr-h1) were determined by qPCR at 72 h. The RNAi-induced knockdown ofOr11 significantly decreased the expression ofOr11,Kr-h1 andBr-cin the antennae and brains of drones. This study suggests that the transcription factorKr-h1 is downstream ofOr11,Kr-h1, which may play an important role in the signal transduction process of drones responding to 9-ODA.
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