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Bertrand EardlyProfessor of Biology, Eberly College of Science
Full-time

Ph.D., Crop Science, Oregon State University, 1985

M.S., Agronomy, The Ohio State University, 1979

B.S., Agronomy, The Ohio State University, 1976

e-mail: bde1@psu.edu
Phone: 610-396-6131
Fax: 610-396-6024
Office: 235 Luerssen Building

Profile:

Dr. Eardly is a Professor of Biology at Penn State Berks. Eardly's research involves the use of DNA sequence-based analyses to investigate how evolutionary forces (mutation, selection, recombination, and genetic drift) influence the genetic structure in naturally occurring populations of soil bacteria. His research involves collaborations with scientists from the USDA, as well as scientists in England, Finland, China, and New Zealand. Results to-date have resulted in the recognition of at least two new species of the soil bacterium Rhizobium, and the results have also stimulated a critical reassessment of criteria currently used to define species in the family Rhizobiaceae.

Most Recent Publications:

Eardly, B. D., and J. P. Xu. 2010. Population genetics of the symbiotic nitrogen-fixing bacteria rhizobia. Ch. 5, p. 79-95. In J. P. Xu (ed.), Microbial Population Genetics. Caister Academic Press. Norfolk, UK.

van Berkum, P., P. Elia, and B. D. Eardly. 2010. Application of multilocus sequence typing to study the genetic structure of megaplasmids in Medicago-nodulating rhizobia. Appl. Environ. Microbiol. 76:3967-3977.