Dr. Attiq R Muhammad,Ph.D

Molecular biologist: Microbiome & Antibiotic Resistance

Molecular Epidemiology of Antimicrobial resistance and development of alternatives to antibiotics in poultry (Genomic Research and development initiative on AMR (GRDI-AMR).

Current research and/or projects

Genomic Research and development initiative on AMR (GRDI-AMR).

Research and/or project statements

  • Initiated, planed, organized and executed research activities under established guidelines.
  • Designed, conducted, and analyzed results of in vitro and in vivo experimental trials
  • Coordinated a collaborative and multidisciplinary research project (GRDI-AMR)
  • Discovered a new fosfomycin resistance gene fosA7
  • Wrote research manuscripts and reports approved by colleagues
  • Participated in the training of students and research staffs

Professional activities / interests

Molecular microbiology, Pathogen subtyping and genomic epidemiology of foodborne pathogens, bioinformatics, Next generation sequencing (NGS), Bacterial genomics and Metagenomics, Microbial pathogenesis, host-pathogen interactions, Antimicrobial resistance, Microbial phylogenetic and evolution, Genotype-Phenotype correlations and machine learning

Education and awards

Doctor of Philosophy (Ph.D.) Molecular Biology and Genetics

Department of Molecular and Cellular Biology, University of Guelph Ontario Canada


  1. 1st place winner of the 2015 Poster Competition of 13th Annual Food Safety Research Forum, Ontario Ministry of Agriculture, Food & Rural Affairs Guelph Ontario Canada
  2. 1st place winner of the 2014 Poster Competition of 12th Annual Food Safety Research Forum, Ontario Ministry of Agriculture, Food & Rural Affairs Guelph Ontario Canada
  3. Natural Sciences and Engineering Research Council of Canada (NSERC) postdoctoral fellowship 2012
  4. National Institutes of Health (NIH) USA, Fellows Award for Research Excellence, 2011
  5. Program in Cellular Regulation and Metabolism NICHD Group meeting best participation award, 2011
  6. National Institutes of Health (NIH) USA, Intramural postdoctoral Research Fellowship 2009
  7. Dual Travel Award recipient of American yeast Genetics Society, 2008, 2010
  8. Dual recipient of Ontario Graduate Scholarship in Science and Technology, 2006, 2008
  9. Richard and Sophia Hungerford Research Travel award, University of Guelph 2007
  10. University of Guelph Graduate Scholarship 2006, 2007, 2008
  11. Wood-Whelen International Research fellowship for Japan 2006
  12. Student Mini-symposium speaker at University of Guelph, 2006
  13. National Agricultural Biotechnology Conference Fellowship 2004
  14. UNESCO Short-term training Fellowship 2003
  15. United Nations University Japan Fellowship 2002
  16. DR. J. H. Orbison Gold Medal for distinction in M.Sc., University of the Punjab, Lahore 1996

International experience and/or work

  1. National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH) Maryland, USA.
  2. Wellcome Trust Sanger Institute, Hinxton, UK 
  3. Tokyo Metropolitan Institute of Medical Sciences Japan

Key publications

  1. Samuel Mohammed Chekabab Rehman MA, Xianhua Yin, Catherine Carrillo, Martin Mondor and Moussa S. Diarra (2019). Growth of Salmonella enterica Serovars Typhimurium and Enteritidis in Iron-Poor Media and in Meat: Role of Catecholate and Hydroxamate Siderophore Transporters. Journal of Food Protection: April 2019, Vol. 82, No. 4, pp. 548-560.
  2. Rehman MA, Yin X, Zaheer R, Goji N, Amoako KK, McAllister T, Pritchard J, Topp E and Diarra MS (2018). Genotypes and Phenotypes of Enterococci Isolated From Broiler Chickens. Front. Sustain. Food Syst. 2:83. doi: 10.3389/fsufs.2018.00083.
  3. Radford D, Strange P, Lepp D, Hernandez M, Rehman M.A., Diarra MS, Balamurugan S (2018) Genomic and Proteomic Analyses of Salmonella enterica Serovar Enteritidis Identifying Mechanisms of Induced de novo Tolerance to Ceftiofur. Frontiers in microbiology, 9:2123. https://doi.org/10.3389/fmicb.2018.02123
  4. Taggar, G., Rehman, M.A., Yin, X., Lepp, D., Ziebell, K., Handyside, P., Boerlin, P., and Diarra, M.S. (2018). Antimicrobial-Resistant E. coli from Surface Waters in Southwest Ontario Dairy Farms. Journal of Environmental Quality.doi:10.2134/jeq2018.04.0139
  5. Rehman, M.A., Xianhua Yin, Lepp D, Ziebell K, Laing CR, Guylaine Talbot, Edward Topp and Diarra MS, 2017. Genomic Analysis of third generation cephalosporin resistant Escherichia coli from dairy cow manure. Vet. Sci. 2017, 4, 57. doi:10.3390/vetsci4040057. 
  6. Rehman, M.A., Xianhua Yin, Marissa Persaude and, Diarra MS, 2017. First Detection of a Fosfomycin Resistance Gene fosA7 in Salmonella enterica serovar Heidelberg Isolated from Broiler Chickens. Antimicrob. Agents Chemother. doi:10.1128/AAC.00410-17
  7. Rehman, M.A., Carrillo C, Malouin F, Diarra MS, 2017. Draft Whole-Genome Sequences of Multidrug-Resistant Escherichia coli O157:H7 Strains Isolated from Feedlot Cattle Treated with Growth-Promoting Agents. Genome Announc. 2017 May 4;5(18). pii: e00284-17. doi: 10.1128/genomeA.00284-17.
  8. Yoshida C, Brumwell SL, Lingohr EJ. Ahmad A, Blimkie TM, Kogan BA, Pilsworth J, 
    Rehman, M. A., Schleicher KL, Shanmugaraj J, Kropinski AM, Nash JHE, 2016. Draft Draft Whole-Genome Sequences of 25 Salmonella enterica Strains Representing 24 Serovars. American Society for Microbiology (ASM), Genome Announce. 2016 Mar 3;4(2). pii: e01718-15. doi: 10.1128/genomeA.01718-15. 
  9. Rehman, M. A., Labbé G, Ziebell K, Johnson RP, Nash JHE, 2015. Complete Genome and Plasmid Sequences of three Canadian Strains of Salmonella enterica subsp. enterica Serovar Enteritidis belonging to Phage Types 8, 13 and 13a. American Society for Microbiology (ASM), Genome Announce. 2015; 3(5)
  10. Rehman, M. A., Ziebell K, Nash JHE, Kropinski AM, Ross A, Boerlin P, Chui L, Devenish J, Bekal S, Graham M, Amok KK, Johnson RP. 2014. High quality draft genome sequences of 162 Canadian strains of Salmonella enterica subsp. enterica serovar Enteritidis. Genome Announc. 2014; 2(2)
  11. Rehman, M. A., Ziebell K, Nash JHE, Kropinski AM, Ross A, Al-Lami M, Boerlin P, Chui L, Devenish J, Bekal S, Graham M, Amok KK, Johnson RP. 2014. Complete genome sequences of 16 Canadian strains of Salmonella enterica subsp. enterica serovar Enteritidis. Genome Announc. 2014; 2(2)
  12. Jeffery, Daniel; Wyse, Brandon; Rehman, M.A; Brown, Geoffrey; You, Zhiying; Oshidari, Roxanne; Masai, Hisao; Yankulov, Krassimir. Analysis of Epigenetic Stability and Conversions in S. cerevisiae reveals a Novel Role of CAF-I in Position-Effect Variegation. Nucleic Acids Res. 2013; 41(18): 8475-88
  13. Power P, Jeffery D, Rehman M.A*, Chatterji A, Yankulov K. Sub-Telomeric core X and Y' Elements in S. cerevisiae Suppress Extreme Variations in Gene Silencing. Plos One. 2011 Mar 17; 6(3): e17523. (*Equal contribution)
  14. Maria Espinosa, Rehman M.A*, and K.Yankulov. GCN5 functions as a positive regulator of replication origins in S. cerevisiae (PLoS One. 2010 Jan 29; 5(1): e8964. (*Equal contribution)
  15. Rehman, M. A., and Yankulov K. The dual role of autonomously replicating sequences as origins of replication and as silencers. (Review article) Current Genetics 2009; 55 (4): 357-363
  16. Rehman M. A., Dongliang Wang, Genevieve Fourel, Eric Gilson and Krassimir Yankulov. Sub-telomeric ACS-containing proto-silencers act as anti-silencers in replication factors mutants in S. cerevisiae Mol Biol Cell. 2009; 20 (2): 631-41.
  17. Rehman, M. A., Genevieve Fourel, Amit Mathews, Danielle Ramdin, Maria Espinosa, Eric Gilson, and Krassimir Yankulov. Differential requirement of DNA replication factors for sub-telomeric ACS proto-silencers in S. cerevisiae. Genetics. 2006; 174 (4): 1801-10.



Research facility

93 Stone Road West
Guelph, ON N1G 5C9


Guelph Research and Development Centre

Agriculture and Agri-Food Canada