Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1019327 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR26123800_1.fastq.gz | Fastqsanger.gz | |||
| SRR26123800_2.fastq.gz | Fastqsanger.gz | |||
| SRR26123801_1.fastq.gz | Fastqsanger.gz | |||
| SRR26123801_2.fastq.gz | Fastqsanger.gz | |||
| SRR26123802_1.fastq.gz | Fastqsanger.gz |
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Project description:Scouts and non-scouts (recruits) were collected by using a novelty-seekingM-^] assay. Experiment was conducted in a large outdoor screened enclosure, which enabled us to exert complete control over the location and number of food resources while at the same time studying naturalistic honey bee foraging behavior. Foragers were first trained to a color-marked training feederM-^] that contained unscented 50% sucrose solution (m/v); this initially was the only food source available to them. After 2-3 days of training, a novel feederM-^] was set up in another location in the enclosure, with different color markings and an odor cue. The training feeder was maintained, providing the bees with two possible foraging locations, a familiar and a novel. Scouts were identified as bees that switched foraging from the training feeder to the novel feeder; only bees seen foraging at the novel feeder two or more times and at least once at the training feeder were collected as scouts. Non-scouts (recruits) were collected at the end of the experiments; these were bees that continued to forage at the training feeder, and were never observed to switch to the novel feeder.
2011-07-01 | E-MTAB-491 | biostudies-arrayexpress
Project description:stingless bees (Meliponini) assemblies
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Project description:In honey bees, Vitellogenin (Vg) is hypothesized to be a major factor affecting hormone signaling, food-related behavior, immunity, stress resistance and lifespan. Likewise microRNAs play important roles in posttranscriptional gene regulation and affect many biological processes thereby showing many parallels to Vg functions. The molecular basis of Vg and microRNA interactions is largely unknown. Here, we exploited the well-established RNA interference (RNAi) protocol for Vg knockdown to investigate its effects on microRNA population in honey bee forager’s brain and fat body tissue. To identify microRNAs that are differentially expressed between tissues in control and knockdown foragers, we used µParaflo® microfluidic oligonucleotide microRNA microarrays. Our results show 76 and 74 miRNAs were expressed in the brain of control and knockdown foragers whereas 66 and 69 miRNAs were expressed in the fat body of control and knockdown foragers respectively. Target prediction identified potential seed matches for differentially expressed subset of microRNAs affected by Vg knockdown. These candidate genes are involved in a broad range of biological processes including insulin signaling, juvenile hormone (JH) and ecdysteroid signaling previously shown to affect foraging behavior. Thus, here we demonstrate a causal link between Vg expression-variation and variation in the abundance of microRNAs in different tissues with possible consequences for regulation of foraging behavior.
2013-03-07 | GSE44916 | GEO
Project description:In honey bees, Vitellogenin (Vg) is hypothesized to be a major factor affecting hormone signaling, food-related behavior, immunity, stress resistance and lifespan. Likewise microRNAs play important roles in posttranscriptional gene regulation and affect many biological processes thereby showing many parallels to Vg functions. The molecular basis of Vg and microRNA interactions is largely unknown. Here, we exploited the well-established RNA interference (RNAi) protocol for Vg knockdown to investigate its effects on microRNA population in honey bee forager’s brain and fat body tissue. To identify microRNAs that are differentially expressed between tissues in control and knockdown foragers, we used µParaflo® microfluidic oligonucleotide microRNA microarrays. Our results show 76 and 74 miRNAs were expressed in the brain of control and knockdown foragers whereas 66 and 69 miRNAs were expressed in the fat body of control and knockdown foragers respectively. Target prediction identified potential seed matches for differentially expressed subset of microRNAs affected by Vg knockdown. These candidate genes are involved in a broad range of biological processes including insulin signaling, juvenile hormone (JH) and ecdysteroid signaling previously shown to affect foraging behavior. Thus, here we demonstrate a causal link between Vg expression-variation and variation in the abundance of microRNAs in different tissues with possible consequences for regulation of foraging behavior.
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Project description:We used transcriptomics to compare instinctive and learned, reward-based, honey bee behaviors with similar spatio-temporal components: mating flights by males (drones) and time-trained foraging flights by females (workers), respectively. Genome-wide gene expression profiling via RNA sequencing was performed on the mushroom bodies (MB), a region of the brain known for multi-modal sensory integration and responsive to various types of reward. Differentially expressed genes (DEGs) associated with the onset of mating (623 genes) were enriched for the Gene Ontology (GO) categories of Transcription, Unfolded Protein Binding, Post-embryonic Development, and Neuron Differentiation. DEGs associated with the onset of foraging (473) were enriched for Lipid Transport, Regulation of Programmed Cell Death, and Actin Cytoskeleton Organization. These results demonstrate that there are fundamental molecular differences between similar instinctive and learned behaviors. In addition, there were 166 genes with strong similarities in expression across the two behaviors -- a statistically significant overlap in gene expression, also seen in Whole Genome Coexpression Network Analysis. This finding indicates that similar instinctive and learned behaviors also share common molecular architecture. This common set of DEGs was enriched for Regulation of RNA Metabolic Process, Transcription Factor Activity, and Response to Ecdysone. These findings provide a starting point for better understanding the relationship between instincts and learned behaviors. In addition, because bees collect food for their colony rather than for themselves, these results also support the idea that altruistic behavior relies, in part, on elements of brain reward systems associated with selfish behavior.
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