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Video Q&A ViewAttendees 3

Physiology, Biochemistry, and Toxicology

10-Minute Paper

PBT: Genetics On-Demand Presentations

Potential mandible differences in the transcriptome among different bee stocks: A multifaceted approach

On-Demand
On-Demand

    Presenting Author(s)

  • CF

    Catherine Farrell

    Postdoctoral Researcher
    Central State University
    Wilberforce, Ohio

    • Co-Author(s)

  • HL

    Hongmei Li-Byarlay

    Assistant Professor
    Central State University
    Wilberforce, Ohio

  • BH

    Brock Harpur

    Assistant Professor
    Purdue University
    West Lafayette, Indiana

Varroa destructor mites present a major threat to honeybee populations worldwide. Feral colonies and certain breeding stocks in the Midwest are proven to be mite resistant by displaying a high rate of grooming or mite biting behavior. Our previous research revealed that the mandibles of the mite biting bees are morphologically distinct from commercial package bees, and appear to be sharper and therefore more efficient at mite removal. In this project, we collaborate with Purdue University to  examine the molecular mechanisms underlying the mandible differences. To investigate the potential genetic factors determining mandible shapes, we will analyze the transcriptomes of the mandibles to look for genes which are differentially regulated. In addition, we are examining metal ion incorporation into the mandibles of bees. Metal ion incorporation into insect cuticle directly influences their hardness in insects and other invertebrates. Finally, because the grooming behavior is directly correlated with mite defense, we compared grooming behavior in strains of high-biting, low-biting, and feral bees. By combining transcriptomic and chemical makeup of the mandibles, and relevant behavior, we gain a more complete picture of the nature of mite defense in honeybees.