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Spring 2014 Colloquium: Qian Wang

1/31/2014

 
Drosophila X Virus sounds like a science-fictionalized harbinger of the fruit fly apocalypse. Yet, during her Entomology colloquium on her research in progress, Qian Wang, a PhD candidate in Dr. Louisa Wu’s lab in the Department of Cell Biology and Molecular Genetics, explained how Drosophila X Virus (DXV) can be much more informative than it is destructive.
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Caption: Electron Microscopy of a Drosophila cell replete with tetrahedral Drosophila X virions.
DXV is an unenveloped icosahedral virus in a family of double-stranded RNA viruses called Birnaviridae. Double-stranded RNA should not be freely floating around in cells, so when it is detected, the immune system quickly mounts a robust response to destroy the RNA-based invader. This trait makes DXV the ideal candidate for biologists interested in investigating the inner workings of the Drosophila innate immune system.  

In a traditional approach to Drosophila genetics, Wang has been creating immune gene mutants of Drosophila that are more susceptible to DXV. These mutants have helped her identify the tissue localization of DXV during infection andDrosophila infection response. Coupled with bioassays and fluorescence microscopy, these mutants have uncovered valuable insight into the innate immune response to DXV.

In a more avant-garde approach, Wang has sequenced the transcriptomes of her mutants encumbered and unencumbered with DXV. Application of the latest in RNAseq technology has allowed her to finely identify the gene families enriched and suppressed by the virus. Discerning the complex interactions of the immune and traditionally non-immune genes implicated in her investigation will be an immense step forward in understanding how Drosophila respond to infection with DXV. Hypotheses generated by this approach can be further validated with previous microscopic observations and bioassays.

Application of leading edge scientific technology to a model system like Drosophila will likely impact our understanding of our own innate immunity. In her thorough characterization of this ominous sounding Drosophila virus, Wang is making strides on many scientific fronts. 


About Brian: 

Brian Lovett is a PhD student studying mycology and genetics in agricultural and vector biology systems. He is currently working on projects analyzing mycorrhizal interactions in agricultural systems and the transcriptomics of malaria vector mosquitoes.


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Department of Entomology 
University of Maryland 
4112 Plant Sciences Building 
College Park, MD 20742-4454
USA

Telephone: 301.405.3911 
Fax: 301.314.9290
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  • About
    • At a Glance
    • Welcome From the Chair
    • Code of Conduct
    • Diversity, Equity, and Inclusion >
      • DEI Working Group
      • Resources
    • Departmental History
    • For Alumni
    • Support Entomology >
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    • Proposal Resources
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  • News
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  • People
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  • Academics
    • Graduate >
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      • Graduate Student Resources
      • Financial Assistance
      • Award & Funding Opportunities
      • Entomology Student Organization
    • Online Masters in Applied Entomology
    • Undergraduate >
      • Entomology Minor
      • Honors Program
  • Research
    • IPM & Biological Control of Agricultural, Urban & Forest Pests
    • Ecology, Conservation, Restoration, Climate Change >
      • Pollinator Science and Apiculture
    • Evolution, Systematics and Evo-Devo
    • Genetics & Genomics and Medical Entomology
  • Extension/Outreach
    • Educational Outreach
    • Insect Camp
    • Insect Drawings
    • Insect Identification
    • Pesticide Education and Assessment Program
    • Plant Diagnostic Laboratory (PDL)