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Intronic Non-CG DNA Hydroxymethylation and Alternative mRNA Splicing in Honey Bees

ABSTRACT: Honey bee non-CG DNA hydroxymethylation is enriched in the introns, which supplements previous findings that honey bee CG DNA methylation is enriched in exons.

ORGANISM(S): Apis mellifera Apis mellifera scutellata

PROVIDER: GSE50990 | GEO | 2013/09/19

SECONDARY ACCESSION(S): PRJNA219484

REPOSITORIES: GEO

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Intronic Non-CG DNA Hydroxymethylation and Alternative mRNA Splicing in Honey Bees

Project description:Honey bee non-CG DNA hydroxymethylation is enriched in the introns, which supplements previous findings that honey bee CG DNA methylation is enriched in exons. Bisulfite sequencing combined with Pvu-Seq to distinguish 5-methylcytosine from 5-hydroxymethylcytosine and RNA-Seq

2013-09-19 | E-GEOD-50990 | biostudies-arrayexpress

Intronic non-CG DNA hydroxymethylation and alternative mRNA splicing in honey bees.

Project description: Not available

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Intronic Non-CG DNA Hydroxymethylation and Alternative mRNA Splicing in Honey Bees

Project description:Intronic Non-CG DNA Hydroxymethylation and Alternative mRNA Splicing in Honey Bees

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The habitat disruption induces immune-suppression and oxidative stress in honey bees

Project description:Background: Honey bee is a major insect used for pollination of a number of commercial crops worldwide. However, the number of managed honey bee colonies has recently declined in several countries, and a number of possible causes are proposed. Although the use of honey bees for pollination can be considered as disruption of the habitat, its effects on honey bees' physiology have never been addressed. In Japan, more than 100 thousands colonies are annually used for pollination, and intriguingly 80% of them are used in greenhouses. Recently, honey bee colonies have often collapsed when they are introduced into greenhouses. Thus, to suppress colony collapses and maintain the number of worker bees in the colonies are essential for successful long-term pollination in greenhouses and recycling honey bee colonies.

2011-05-12 | GSE29252 | GEO

The habitat disruption induces immune-suppression and oxidative stress in honey bees

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Trancriptome analysis of honey bees (Apis mellifera) infected with Nosema ceranae

Project description:The microsporidia Nosema ceranae are intracellular parasites that proliferate in the midgut epithelial cells of honey bees (Apis mellifera). To analyze the pathological effects of those microsporidia, we orally infected honey bee workers 7 days after their emergence. Bees were flash frozen 15 days after the infection. Then, the effects on the gut ventriculi were analyzed and compared to non-infected (control) bees.

2012-05-23 | GSE25455 | GEO

Gene expression profile of experimentally Deformed wing virus (DWV)-infected honey bees: Naive control vs. DWV-infected pupae

Project description:Transcriptional profiling of honey bee pupae challenging a DWV infection by comparing the gene expression profiles of untreated honey bee pupae with DWV-infected pupae. Goal was to determine the gene expression profile of DWV-infected honey bee pupae.

2016-11-15 | E-MTAB-5070 | biostudies-arrayexpress

Differential circular RNAs expression in ovary during oviposition in honey bees

Project description:The present study is the first study to identify the involvement of circRNAs in the ovary activation and oviposition regulation processes in honey-bee queens.CircRNAs expresion profiles were examined in ovaries of virgin queens, egg-laying queens, egg-laying inhibited queens and egg-laying recovery queens.

2018-06-07 | GSE103860 | GEO

Genetics of tolerance in honey bees to the neonicotinoid clothianidin.

Project description:The effects of neonicotinoid insecticides (NNIs) on honey bee health is intensely debated, with numerous studies showing negative effects of exposure, while others report no such effects. Understanding the cause of these differences is critical for developing evidence-based policy on the use of NNIs. We carried out experiments to study the genetic and molecular basis of NNI tolerance in honey bees, which may underlie the discrepancies observed in the literature. We discovered that worker survival post-exposure to an acute oral dose of clothianidin is heritable (H2=37.8%).

2023-03-01 | GSE216021 | GEO

Searching beyond the streetlight: neonicotinoid exposure alters the neurogenomic state of worker honey bees

Project description:Neonicotinoid insecticides have been implicated in honey bee declines, with many studies showing that sub-lethal exposure impacts bee behaviors such as foraging, learning and memory. Despite the large number of ecotoxicological studies carried out to date, most focus on a handful of worker phenotypes leading to a ‘streetlight effect’ where the a priori choice of phenotypes to measure may influence the results and conclusions arising from the studies. This bias can be overcome with the use of toxicological transcriptomics, where changes in gene expression can provide a more objective view of how pesticides alter animal physiology. Here, we used RNA sequencing to examine the changes in neurogenomic states of nurse and forager honey bees that were naturally exposed to neonicotinoids in the field and artificially exposed to neonicotinoid in a controlled experiment.

2022-01-04 | GSE178742 | GEO

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