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Transcriptome Atlas of the Developing Honeybee Brain

ABSTRACT: Neural cells regulate brain functions, yet our understanding of how brain functions are influenced by different developmental stages in a cell type-specific manner is still incomplete. Here, we present a developmental cell atlas of the honeybees, including single-cell transcriptomes from entire brains of three different developmental stages: pupae, nurse bees, and foragers. We have identified 13 distinct neural cell types and have conducted detailed analysis of their cell type-specific features at various developmental stages of honeybees. The results demonstrated that these cell types varied in their proportions across developmental stages, with Kenyon cells having the highest proportion in the honeybee brain, followed by cell types related to the optic and antennal lobes. Functional differentiation of different cell types is closely associated with honeybee behaviors and physiological demands, which suggests enhanced and complex regulation of neural networks during honeybee brain development. This transcriptomic atlas provides a valuable resource for exploring the structural and functional changes in the honeybee brain during labor division differentiation.

ORGANISM(S): Apis mellifera

PROVIDER: GSE270605 | GEO | 2025/12/31

REPOSITORIES: GEO

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Project description:Honeybee brain has distHoneybee brain has distinct anatomical and functional regions, knowledge on molecular underpinnings of sub-organ to achieve the distinct neural function and the difference between the eastern and western honeybees are still missing. Here, the proteomes of three sub-organs of eastern and western honeybee brains were compared. Mushroom bodies (MBs) and optical lobes (OLs) may by employed similar proteome architectures to drive their domain-specific neural activity in both bee species. In MBs, protein metabolism and Ca2+ transmembrane transport are the key role players in driving the learning and memory by modulating the synaptic structure and signal transduction to consolidate memory trace. In OLs, ribonucleoside metabolism and energy production play major roles to underpin visual system by maintaining G-protein cycle and membrane electrical charge potential. However, in antennal lobes (ALs), it has evolved distinct proteome settings to prime the olfactory learning and memory in two bee species. In ALs of Apis cerana cerana (Acc), actin cytoskeleton organization is key for plasticity of glomeruli and intracellular transport to sustain the olfactory signaling. Whereas, in ALs of Apis mellifera ligustica (Aml), hydrogen and hydrogen ion transport are vital to support olfactory process by supplying energy and maintaining molecule transport. Noticeably, in ALs of Acc, the exclusively enriched functional groups acting as second messenger and neurontransmitter of signal transduction, and the enhanced protein metabolism to regulate the plasticity of synaptic structure for formation of memory, suggest that Acc may have evolved a better sense of smell than that of Aml. Our first proteome data is helpful as starting point for further analysis of neural activity in brain sub-area of honeybee and other insects.inct anatomical and functional regions, knowledge on molecular underpinnings of sub-organ to achieve the distinct neural function and the difference between the eastern and western honeybees are still missing. Here, the proteomes of three sub-organs of eastern and western honeybee brains were compared. Mushroom bodies (MBs) and optical lobes (OLs) may by employed similar proteome architectures to drive their domain-specific neural activity in both bee species. In MBs, protein metabolism and Ca2+ transmembrane transport are the key role players in driving the learning and memory by modulating the synaptic structure and signal transduction to consolidate memory trace. In OLs, ribonucleoside metabolism and energy production play major roles to underpin visual system by maintaining G-protein cycle and membrane electrical charge potential. However, in antennal lobes (ALs), it has evolved distinct proteome settings to prime the olfactory learning and memory in two bee species. In ALs of Apis cerana cerana (Acc), actin cytoskeleton organization is key for plasticity of glomeruli and intracellular transport to sustain the olfactory signaling. Whereas, in ALs of Apis mellifera ligustica (Aml), hydrogen and hydrogen ion transport are vital to support olfactory process by supplying energy and maintaining molecule transport. Noticeably, in ALs of Acc, the exclusively enriched functional groups acting as second messenger and neurontransmitter of signal transduction, and the enhanced protein metabolism to regulate the plasticity of synaptic structure for formation of memory, suggest that Acc may have evolved a better sense of smell than that of Aml. Our first proteome data is helpful as starting point for further analysis of neural activity in brain sub-area of honeybee and other insects.

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Transcriptome Atlas of the Developing Honeybee Brain

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