The U.S. Department of Agriculture (USDA), Agricultural Research Service (ARS), North East Area is seeking highly qualified candidates for a two year Post-Doctoral Research Associateship at the Beneficial Insect Introductions Research Unit in Newark, Delaware. Salary $62,476 per year plus benefits (GS-11 Geneticist/Biologist/Entomologist). The position involves research on the evolution and genetics of host specificity of parasitic wasps in the genus Aphelinus. This will involve mapping of QTL (quantitative trait loci) affecting differences in host specificity, analysis of parasitoid genomes and transcriptomes for sequence and expression differences that indicate divergent selection, and genetic mapping of divergent genes to determine whether they are associated with QTL. The research will also involve analysis of tissue- and stage-specific expression of divergent genes and knockout of these genes to determine whether they indeed affect host specificity. The laboratory is located on the campus of the University of Delaware in Newark, Delaware, which is developing a Genome Science program. Newark is a small tranquil college town in northern Delaware, midway between Washington, DC (100 miles) and New York, NY (130 miles). The closest large towns are Philadelphia (45 miles) and Baltimore (60 miles). For application details, see the vacancy announcement RA-15-062-H on the USAJOBS Website (www.usajobs.gov/GetJob/ViewDetails/417270800). Applications will be accepted until the position is filled. Only U.S. Citizens and Permanent Residents seeking U.S. Citizenship are eligible. USDA/ARS is an equal opportunity employer and provider. If you have questions, contact Dr. Keith Hopper, phone: (302) 377-2622, email: Keith.Hopper@ars.usda.gov.