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Syracuse University, College of Arts and Sciences

Roy D. Welch




Biophysical Science


236 Life Sciences Complex


Research Interests

Molecular aspects of signaling among a homogeneous population of bacteria


  • Ph.D., University of Wisconsin-Madison, 1997
  • Postdoc, Stanford University, 1998-2003
  • Postdoc, University of Wisconsin-Madison, 1997-1998


  • Biology 409 General Microbiology
  • Biology 575 Genera Biochemistry I


National Research Service Award (NRSA) Fellowship GM20356-03: Traveling wave formation in Myxococcus xanthus

I study the genetics of self-organizing behavior in the prokaryote Myxococcus xanthus through the application of molecular biology, modeling, and whole-genome analysis.

Undergraduate students: link to for information about research opportunities in my lab.

Selected Publications

  • Arshinoff, BI, Suen, G, Just, EM, Merchant, SM, Kibbe, WA, Chisholm, RL and Welch RD. 2007. Xanthusbase: Adapting Wikipedia Principles to a Model Organism Database. Nucleic Acids Research 35(Database Issue): D422 - D426.
  • Suen, G, Jakobsen, JS, Goldman, BS, Singer, M, Garza, AG and Welch RD. 2006. Bacterial Post-Genomics: The Promise and Peril of Systems Biology. Journal of Bacteriology 188(23): 7999-8004.
  • Srinivasan BS, Caberoy NB, Suen G, Taylor RG, Shah R, Tengra F, Goldman BS, Garza AG, and Welch RD. 2005. Functional Genome Annotation through Phylogenomic Mapping. Nature Biotechnology. 23(6): 691-698.
  • Igoshin OA, Welch RD , Kaiser D, and Oster G. 2004. Waves and aggregation patterns in myxobacteria. PNAS. 101: 4256-4261.
  • Jakobsen JS, Jelsbak L, Welch RD, Cummings C, Goldman BS, Stark E, Slater SC, & Kaiser D. 2004. Enhancer binding proteins and Myxococcus xanthus fruiting body development. Journal of Bacteriology. 186(13): 4361-4368.
  • Kaiser D, and RD Welch RD. 2003. Dynamics of fruiting body morphogenesis. Journal of Bacteriology. 186(4): 919-927.
  • Caberoy NB, Welch RD , Jakobsen JS, Slater SC, and Garza,AG. 2003. A global mutational analysis of NtrC-like activators in Myxococcus xanthus : identifying activator mutants defective for motility and fruiting body development. Journal of Bacteriology. 185(20): 6083-609.