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⚠️ Information and Updates Regarding COVID-19's Impact on the College of Agricultural Sciences

Todd Gaines

Todd Gaines, Assistant Professor of Agricultural Biology, College of Agricultural Sciences, Colorado State University, October 26, 2016Molecular Weed Science

Assistant Professor
C208 Plant Sciences
970-491-6824 office
970-491-1523 lab

Weed Science Lab

Research Interests:

My research goal is to support sustainable weed management that helps contribute to sustainable cropping systems.  To that end, I am interested in research to identify the molecular and genetic basis of complex herbicide resistance mechanisms; utilizing next-generation sequencing to study complex traits in weeds; and developing molecular markers for rapid resistance diagnostics.  Research projects in my lab study changes in evolutionary trajectories of weedy species due to human management (specifically herbicides and herbicide resistance evolution), and develop genomics and bioinformatics resources to study herbicide resistance traits in weedy species and crops.


Classes Taught:

581A4: Molecular Genetics and Evolution of Pesticide Resistance (Fall, Odd)

Dr. Gaines is also the 4+1 Program Adviser

Graduate Students I Advise:

Eric Patterson – PhD in Weed Science

Anita Kuepper – PhD in Bioagricultural Sciences

Neeta Soni – PhD in Weed Science

Olivia Todd – MS in Weed Science

Curtis Hildebrandt – MS in Weed Science

Marcelo Figueiredo – PhD in Weed Science

Selected Publications:

Patterson, E., M. Fleming, K. Kessler, S. Nissen, and T. Gaines*. 2017. A KASP genotyping method to identify northern watermilfoil, Eurasian watermilfoil, and their interspecific hybrids. Frontiers in Plant Science. 8: 752. DOI: 10.3389/fpls.2017.00752.

Küpper, A., E. Borgato, E. Patterson, A. Netto, M. Nicolai, S.J.P. Carvalho, S. Nissen, T. Gaines, and P. Christoffoleti. 2017. Multiple resistance to glyphosate and ALS inhibitors in Palmer amaranth (Amaranthus palmeri) identified in Brazil. Weed Science. 65: 317:326. DOI: 10.1017/wsc.2017.1.

Busi, R., T. Gaines, and S. Powles. 2017. Phorate can reverse P450 metabolism-based herbicide resistance in Lolium rigidum. Pest Management Science. 73: 410-417. DOI: 10.1002/ps.4441.

Gaines, T., A. Barker, E. Patterson, P. Westra, E. Westra, R. Wilson, P. Jha, V. Kumar, and A. Kniss. 2016. EPSPS gene copy number and whole-plant glyphosate resistance level in Kochia scoparia. PLoS One. 11:e0168295. DOI: 10.1371/journal.pone.0168295.

Brunharo, C., E. Patterson, D. Carrijo, M. Melo, M. Nicolai, T. Gaines, S. Nissen, and P. Christoffoleti. 2016. Confirmation and mechanism of glyphosate resistance in Tall windmill grass (Chloris elata) from Brazil. Pest Management Science. 72: 1758-1764. DOI: 10.1002/ps.4205.

Powles, S. and T. Gaines. 2016. Exploring the potential for a regulatory change to encourage diversity in herbicide use. Weed Science. 64: 649-654. DOI: 10.1614/WS-D-15-00070.1.

Christoffoleti, P., M. Figueiredo, L. Peres, S. Nissen, and T. Gaines. 2015. Auxinic herbicides, mechanisms of action, and weed resistance: A look into recent plant science advances. Scientia Agricola. 72: 356-362. DOI: 10.1590/0103-9016-2014-0360.

Wiersma, A., T. Gaines*, C. Preston, J. Hamilton, D. Giacomini, C.R. Buell, J. Leach, and P. Westra. 2015. Gene amplification of 5-enol-pyruvylshikimate-3-phosphate synthase in glyphosate-resistant Kochia scoparia. Planta. 241: 463-474. DOI: 10.1007/s00425-014-2197-9.

Lorentz, L., T. Gaines, S. Nissen, P. Westra, H. Strek, H. Dehne, J. P. Ruiz-Santaella, and R. Beffa. 2014. Characterization of glyphosate resistance in Amaranthus tuberculatus populations. Journal of Agricultural and Food Chemistry. 62: 8134-8142. DOI: 10.1021/jf501040x.

Gaines, T.*, L. Lorentz, A. Figge, J. Herrmann, F. Maiwald, M. Ott, H. Han, R. Busi, Q. Yu, S. Powles, and R. Beffa. 2014. RNA-Seq transcriptome analysis to identify genes involved in metabolism-based diclofop resistance in Lolium rigidum. The Plant Journal. 78: 865-876. DOI: 10.1111/tpj.12514. ISI Highly Cited Article.

Sammons, R.D. and T. Gaines. Glyphosate resistance: State of knowledge. 2014. Pest Management Science. 70: 1367-1377. DOI: 10.1002/ps.3743. ISI Highly Cited Article.

Vila-Aiub, M., T. Gaines, S. Goh, H. Han, R. Busi, Q. Yu, and S. Powles. 2014. No fitness cost of glyphosate resistance endowed by massive EPSPS gene amplification in Amaranthus palmeri. Planta. 239:793-801. DOI: 10.1007/s00425-013-2022-x.

Gaines, T., W. Zhang, D. Wang, B. Bukun, S. Chisholm, D. Shaner, S. Nissen, W. Patzoldt, P. Tranel, A. Culpepper, T. Grey, T. Webster, W. Vencill, R. Sammons, J. Jiang, C. Preston, J. Leach, and P. Westra. 2010. Gene amplification confers glyphosate resistance in Amaranthus palmeri. Proceedings of the National Academy of Sciences USA. 107:1029-1034. DOI: 10.1073/pnas.0906649107. ISI Highly Cited Article.

Gaines Lab

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