Molecular Genetics and Soybean Genomics Laboratory

Henry T. Nguyen, Ph.D.
Curators' Distinguished
Professor of Plant Sciences,
Division of Plant Sciences
University of Missouri
Tel: 573-882-5494
Fax: 573-882-1469
Henry Nguyen

Tri Vuong

Senior Research Scientist

Division of Plant Sciences
47 Agriculture Building
University of Missouri
Columbia, MO   65211

Office: (573)-882-5483
Fax: (573)-882-1469

Lab Member Since: January, 2006

Current Research Focus:

My research interests are focusing on identification and characterization of QTL responsible for resistance to soybean cyst nematode (SCN, Heterodera glycines Ichinohe) and soybean rust (Phakopsora pachyrhizi). Using recombinant inbred lines (RIL), I am developing the residual heterozygous lines (RHL) for the development of near-isogenic lines (NIL), which will be utilized for subsequent fine-mapping of identified QTL. These results, in turn, will enable to conduct positional cloning of candidate genes conveying resistance to the pathogens above mentioned.

In collaboration with other colleagues, I am also interested in the development of molecular markers, such as simple sequence repeat (SSR) and single nucleotide polymorphisms (SNP), that are associated with the traits of interest and useful for marker-assisted selection (MAS). In addition, I am coordinating a study of transcription factors (TFs) profiling in attempts to understand the regulatory mechanism of SCN resistance and identify gene(s) underlying this trait in soybean.

  • Ph.D., Molecular Genetics, University of Illinois at Urbana-Champaign (Thesis entitled: “Genetic and Molecular Analysis of the rj7 Gene in Soybean Using PCR- Based Technology”). 1998
  • M.S., Agronomy, University of Illinois at Urbana-Champaign. (Thesis entitled: “Nodulation and Genetic Control of Hypernodulating and High Protein Soybean [Glycine max (L.) Merr.] Lines”. 1995
  • B.S., Agronomy, College of Agriculture, Can Tho University, Vietnam. 1976
Selected Publications:
  • Vuong T.V., Wu X., Pathan M.S., Valliyodan B., and Nguyen H.T. 2007. Genomics approaches to soybean improvement, In. Genomics-assisted crop improvement, Varshney P.K. and Tuberosa R. (Eds), Springer USA (in press).
  • Vuong, T. D., A. T. Pham, B. T. Nguyen, G. L. Hartman, M. R. Miles, R. D. Frederick, D. A. Sleper, J.G. Shannon, D.R. Walker, and H.T. Nguyen. 2006. Screening US Soybean Germplasm for Rust Resistance. The 36th Soybean Seed Research Conference, American Seed Trade Association (ASTA), Chicago, IL, (in CD).
  • Vuong, T.D., B.W. Diers, and G.L. Hartman. Inheritance and QTL analysis of resistance to Sclerotinia stem rot (Sclerotinia sclerotiorum) in soybean (in preparation).
  • Vuong, T.D., D.D. Hoffman, B.W. Diers, J.F. Miller, J.R. Steadman, and G.L. Hartman. 2004. Evaluation of soybean, dry bean, and sunflower for resistance to Sclerotinia sclerotiorum. Crop Sci. 44:777-83.
  • Vuong, T.D. and G.L. Hartman. 2003. Study of resistance to Sclerotinia stem rot in soybean [Glycine max (L.) Merr.] using reciprocal grafting. Plant Disease 87:154-158.
  • Kull, L.S., T.D.Vuong, K.S. Powers, K.M. Eskridge, J.R. Steadman, and G.L. Hartman. 2003. Evaluation of three resistance screening methods using six Sclerotinia sclerotiorum isolates and three entries of each soybean and dry bean. Plant Disease 87:1471-1476.
  • Vuong, T.D., L. S. Kull, D. D. Hoffman, B.W. Diers, W. L. Pedersen, L. Aydogdu, R. L. Nelson, and G.L. Hartman. 2001. Evaluation and breeding for resistance to Sclerotinia stem rot. In the Proceedings of the 11th International Sclerotinia Workshop in York, UK, pp.161-162.
  • Vuong, T.D. and J.E. Harper. 2000. Inheritance and allelism analysis of hypernodulating genes in the NOD3-7 and NOD2-4 soybean mutants. Crop Sci. 40:700-703.
  • Abd-Alla, M.H., T.D.Vuong, and J.E. Harper. 1998. Genotypic differences in dinitrogen fixation response to NaCl stress in intact and grafted soybean. Crop Sci. 38:72-77.
  • Vuong, T.D., C.D. Nickell, and J.E. Harper. 1996. Genetic and allelism analyses of hypernodulation soybean mutants from two genetic backgrounds. Crop Sci. 36:1153-1158.
  • Vuong, T.D., J. Zou, B.W. Diers, S.J. Clough, and G.L. Hartman. 2005. Microarray analysis and development of PCR-based markers for resistance to Sclerotinia stem rot in soybean. In the Proceedings of the 13th International Sclerotinia Workshop, Monterey, CA.
  • Kopisch-Obuch, F.J., T.D. Vuong, D. Wang, and B. W. Diers. 2004. Breeding for resistance to Sclerotinia stem rot (Sclerotinia sclerotiorum) in soybean. The VII World Soybean Research Conference, Feb. 29 to Mar.5, 2004, Foz do Iguassu, PR, Brazil.
  • Vuong, T.D., B. W. Diers, and G. L. Hartman. 2004. QTL Identification of Soybean resistance to Sclerotinia stem rot in the Merit x PI194639 population. The 2nd Sclerotinia Initiative Annual Meeting, Jan. 20-22, 2004, St. Paul, MN (Poster).
  • Vuong, T.D., J. Zou, G.L. Hartman, and S.J. Clough. 2004. Microarray analysis of defense against Sclerotinia stem rot in soybean. Plant & Animal Genome XII, Jan. 10-14, 2004, San Diego, CA. (Poster No. 810).
  • Clough, S. J., T.D. Vuong, and G.L. Hartman. 2003. Genomic analysis of white mold resistance in soybean. The APS Annual Meeting, Charlotte, NC, August 9-13, 2003.
  • Vuong, T.D. and G. L. Hartman. 2003. Genetic analysis and QTL identification of soybean resistance to Sclerotinia stem rot. The APS Annual Meeting, Charlotte, NC, August 9-13, 2003 (Poster No. 327).