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

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: GSE147713 | GEO | 2020/10/09

REPOSITORIES: GEO

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

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 | GSE147712 | GEO

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

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CRISPR-induced deletion of honey bee orco gene

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The IRE1 Pathway Regulates Honey Bee Unfolded Protein Response Gene Expression

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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.

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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.

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