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CRISPR-induced deletion of honey bee orco gene [RNA-Seq]

ABSTRACT: Honey bee embryos were injected either with a CRISPR contruct targeting the orco gene or an injection buffer control. RNA-Sequencing was performed on the antennal mRNA from adult bees within 24 hours of eclosion.

ORGANISM(S): Apis mellifera

PROVIDER: GSE147712 | GEO | 2020/10/09

REPOSITORIES: GEO

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CRISPR-induced deletion of honey bee orco gene [DNA]

Project description:Honey bee embryos were injected either with a CRISPR contruct targeting the orco gene or an injection buffer control. RNA-Sequencing was performed on the antennal mRNA from adult bees within 24 hours of eclosion.

2020-10-09 | GSE147713 | GEO

Brain transcriptomics of honey bee parasitized by Varroa destructor or Nosema ceranae

Project description:In this study we addressed whether the transcriptome profile in the honey bee brain is similar for two major parasites of honey bee, Varroa destructor and Nosema ceranae. Honey bees parasitized by these two parasites show accelerated behavioral maturation and deficiences in orientation and learning/memory that we hoped to characterized at the transcriptomic level.

2013-09-24 | GSE41109 | GEO

CRISPR-induced deletion of honey bee orco gene

Project description:CRISPR-induced deletion of honey bee orco gene

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Brain transcriptomics of honey bee parasitized by Varroa destructor or Nosema ceranae

2013-09-24 | E-GEOD-41109 | biostudies-arrayexpress

The IRE1 Pathway Regulates Honey Bee Unfolded Protein Response Gene Expression

Project description:Our molecular understanding of honey bee cellular stress responses is incomplete. Previously, we sought to identify and began functional characterization of the components of the UPR in honey bees. We observed that UPR stimulation resulted in induction of target genes upon and IRE1 pathway activation, as assessed by splicing of Xbp1 mRNA. However, were not able to determine the relative role of the various UPR pathways in gene activation. Our understanding of honey bee signal transduction and transcriptional regulation has been hampered by a lack of tools. After using RNAseq to expand the known UPR targets in the bee, we use the Drosophila melanogaster S2 cell line and honey bee trans and cis elements to investigate the role of the IRE-1 pathway in the transcriptional activation of one of these targets, the honey bee Hsc70-3 gene. Using a luciferase reporter, we show that honey bee hsc70 promoter activity is inducible by UPR activation. In addition, we show that this activation is IRE1-dependent and relies on specific cis regulatory elements. Experiments using exogenous honey bee or fruit fly XBP1S proteins demonstrate that both factors can activate the Hsc70-3 promoter and further support a role for the IRE-1 pathway in control of its expression in the honey bee. By providing foundational knowledge about the UPR in the honey bee and demonstrating the usefulness of a heterologous cell line for molecular characterization of honey bee pathways, this work stands to improve our understanding of this critical species.

2020-03-28 | GSE139368 | GEO

CRISPR-induced deletion of honey bee orco gene [DNA]

Project description:CRISPR-induced deletion of honey bee orco gene [DNA]

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Meta-analysis of honey bee neurogenomic response to deformed wing virus

Project description:Plant pollination by the western honey bee Apis mellifera is an irreplaceable agroecological and economic cornerstone currently under threat. Recent colony loss has been consistently linked to the increased prevalence of deformed wing virus (DWV), an Iflavirus transmitted from the ecoparasitic mite Varros destructor. While DWV has been detected in the honey bee brain and causally linked to behavioral impairment, the molecular impact of infection on brain gene expression is largely unknown. Recently, we discovered that two published and two new brain transcriptomic studies conducted in our lab contained DWV contamination in over 99% of sequenced honey bee samples. This unanticipated finding sharply contrasted with the experimental paradigms of these four studies, as no physical or behavioral signs of DWV were detected in any of the 335 individual honey bees sampled. We took this opportunity to perform a meta-analysis and test the hypothesis that DWV influences brain gene expression, a relationship which could be linked to the massive depopulation events observed around the world. Results from our study support commonalities in the molecular consequences of DWV in the honey bee brain and implicate specific genes and biological processes associated with infection. Next, we used single-cell RNA-Sequencing to implicate glia as active responders to viral infection. Finally, we performed viral gene expression analysis on a subset of samples and found DWV type A as well as a previously unreported A-B recombinant in the brain. We present this meta-analysis as a first step toward addressing a potential missing link between viral infection and behavior in honey bees.

2020-02-04 | GSE130785 | GEO

Nutrigenomics in honey bees: the impact of pollen nutrients on bee health

Project description:We studied the molecular mechanisms underlying the impact of pollen nutrients on honey bee (Apis mellifera) health and how those nutrients improve resistance to parasites. Using digital gene expression, we determined the changes in gene expression induced by pollen intake in worker bees parasitized or not by the mites Varroa destructor, known for suppressing immunity and decreasing lifespan of bees.

2011-11-06 | GSE25161 | GEO

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

Next Generation Sequencing Facilitates Quantitative Analysis of Honey Bee Brain Transcriptomes Treated by Dinotefuran

Project description:Purpose：The goals of this study are to obtain NGS-derived honey bee brain transcriptome profiling (RNA-seq) after dinotefuran treatment in honey bee Methods：Through deep sequencing in triplicate, using Illumina Hiseq2500,a comprehensive analysis of lncRNAs and mRNAs was performed following persistent exposure to 0.01 mg/L dinotefuran for 1, 5, and 10 d. Results： In total, 312 lncRNAs and 1341 mRNAs, 347 lncRNAs and 1458 mRNAs, 345 lncRNAs and 1155 mRNAs were found to be differentially expressed (DE) on days 1, 5 and 10 respectively. Conlusions：This study characterized the expression profile of lncRNAs upon exposure to neonicotinoid insecticides in young adult honey bees.

2021-07-07 | GSE168740 | GEO

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