The USDA, Agricultural Research Service, U.S. National Arboretum’s Floral and Nursery Plants Research Unit in Beltsville, Maryland, is seeking a Postdoctoral Research Associate, Research Plant Pathologist/Molecular Biologist for a two year appointment. Recent Ph.D. (within the last 4 years) in Plant Pathology, Molecular Biology, Bacteriology or a closely related field is required. Experience with site-directed mutagenesis and functional complementation, functional analysis of bacterial genes and regulation of gene expression, as well as methods in molecular biology and plant pathology including mutagenesis, RNA extraction, reverse transcription PCR and virulence assays is highly desirable. Salary is commensurate with experience and ranges between $68,036 to $88,450 per annum, plus benefits. Citizenship restrictions apply. The incumbent will conduct research to determine the underlining mechanism of cool virulence of Ralstonia solanacearum race 3 biovar 2 (r3b2) for accurate definition, detection and control of this select agent pathogen. The main assignments include: 1) identification and characterization of genes and/or regulatory elements that are responsible for the ability of the highly regulated r3b2 strains of R. solanacearum to cause brown rot of potato at cool temperatures, and 2) use of such genes/regulatory elements for specific detection of R. solanacearum r3b2. Refer to announcement # RA-18-017-H at: https://www.usajobs.gov/GetJob/ViewDetails/511750200 to obtain the full text announcement, complete application instructions, and further information on Postdoctoral Research Associate. Send application materials and references to Dr. Qi Huang, Floral and Nursery Plants Research Unit, Building 004, Room 116, USDA/ARS, 10300 Baltimore Avenue, Beltsville, MD 20705 or e-mail to firstname.lastname@example.org. USDA/ARS is an equal opportunity provider and employer.