1. Department of Biochemistry, Virginia Polytechnic Institute and State University , Blacksburg, VA 24061 , USA
2. The Fralin Life Science Institute, Virginia Polytechnic Institute and State University , Blacksburg, VA 24061 , USA
3. The Global Change Center, Virginia Polytechnic Institute and State University , Blacksburg, VA 24061 , USA
4. Department of Entomology, Virginia Polytechnic Institute and State University , Blacksburg, VA 24061 , USA
5. Center of Emerging, Zoonotic and Arthropod-borne Pathogens, Virginia Polytechnic Institute and State University , Blacksburg, VA 24061 , USA
6. Department of Biology, University of Washington , Seattle, WA 98195 , USA