Nutrition-related regulation of the nurse-forager transition in honeybees

蜜蜂护士-采集者转变的营养相关调节

• 批准号: 389429296
• 负责人: Professorin Dr. Ricarda Scheiner-Pietsch
• 金额: --
• 依托单位: Lehrstuhl für Verhaltensphysiologie und Soziobiologie (Zoologie II)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2017
• 资助国家: 德国
• 起止时间: 2016-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/389429296?language=en
• 关键词: Nutrition; related; regulation; nurse; forager

Honeybees show a complex and fascinating division of labour. The transition from nursing tasks in the hive to foraging tasks outside the colony is particularly intriguing. The aim of this project is to test the hypothesis that the nurse-forager transition in honeybees is regulated by nutrition-related mechanisms. We aim to identify causal relationships between our candidate genes (Amfor, Amtar1, AmoctaR1), gustatory responsiveness and the timing of the nurse-forager transition by manipulation of gene expression and behavioural observations. Second, we want to understand the relationship between metabolism, expression of our candidate genes and the nurse-forager transition and will quantify abdominal lipids in dependence of manipulated gene expression and behavioural state. Thirdly, we will analyze the role of larval nutrition on gene expression and the timing of the nurse-forager transition in honeybees. We hypothesize that suboptimal larval diets will elicit an earlier transition to foraging, possibly through alteration of expression of our candidate genes and a precocious decrease in fat body lipids. Ultimately we want to answer the question if the same mechanisms which regulate individual nutrition have been exploited in the evolution of honeybee sociality to trigger phenotypic plasticity.

蜜蜂的劳动分工复杂而有趣。从蜂巢内的看护任务到殖民地外的觅食任务的转变特别有趣。该项目的目的是检验蜜蜂从保育到觅食的转变是由营养相关机制调节的假设。我们的目标是确定我们的候选基因（Amfor，Amtar 1，AmoctaR1），味觉反应和时间的护士觅食过渡的基因表达和行为观察的操作之间的因果关系。其次，我们想了解代谢，表达我们的候选基因和护士觅食过渡之间的关系，并将量化腹部脂质依赖于操纵基因表达和行为状态。第三，我们将分析幼虫营养对基因表达的作用以及蜜蜂从哺育到觅食的转变时间。我们假设，次优幼虫饮食将引起早期过渡到觅食，可能是通过改变我们的候选基因的表达和过早减少脂肪体脂质。最终，我们想回答的问题是，在蜜蜂社会性的进化中，是否也利用了调节个体营养的相同机制来触发表型可塑性。