Patricia Bedinger

Patricia BedingerProfessor
Office: Anatomy/Zoology Building E344
Phone: 970-491-2879
Education: Ph.D., University of California, San Francisco
Email: Patricia.Bedinger@ColoState.EDU

The work in my laboratory centers on reproductive barriers between higher plant species, in particular between species of wild tomatoes found in Ecuador, Peru and Chile. We are examining the molecular and cellular nature of interspecific reproductive barriers (IRB). Our investigations include genetics (including inter-species crosses, analysis of both natural variation and transgenic approaches), next generation sequencing, and pollen tube growth studies.

Selected Publications

Broz, A.K., A. M. Randle, S.A. Sianta, A. Tovar-Mendez, B. McClure and P.A. Bedinger (2017) Dynamics of reproductive barriers at the northern margin of wild tomato species S. habrochaites: consequences for mating systems, interspecific incompatibility and inter-population interactions. New Phytologist 213:440-454

Bedinger, P.A., A.K. Broz, A. Tovar-Mendez and B. McClure (2017) Pollen-pistil interactions and their role in mate selection. Plant Physiol. 173:79-90

2016 Fleming et al BioresourcesFleming, M., S. R. Decker, P. A. Bedinger (2016) Investigating the role of extensin proteins in polar biomass recalcitrance. BioResources 11(2): 4727-4744

Baek, YS, S.M. Royer, A. K. Broz, P.A. Covey, G. López-Casado, R. Nuñez, P.J. Kear, M. Bonierbale, M. Orillo, E. van der Knaap, S.M. Stack, B. McClure, R.T. Chetelat, and P.A. Bedinger (2016) Pre- and postzygotic reproductive isolating barriers in sympatric wild tomato species. American J. Botany 103:1964-1978 (selected for cover and Highlight of issue)

Baek, YS, P.A. Covey, J. J. Petersen, R.T. Chetelat, B. McClure and P. A. Bedinger Testing the SI × SC rule: pollen-pistil interactions in interspecific crosses between members of the tomato clade (Solanum section Lycopersicon, Solanaceae) (2015) American J. Botany 102 ( 2 ): 302 – 311 (Selected for Highlight of issue)

Tovar-Mendez, A.; A. Kumar, K. Kondo, A. Ashford, Y.S. Baek, L. Welch, P.A. Bedinger, and B. McClure. Restoring pistil-side self-incompatibility factors recapitulates an interspecific reproductive barrier between tomato species (2014) The Plant Journal 77: 727–736

Chalivendra, S.C., G. Lopez-Casado, A. Kumar, A.R. Kassenbrock, S. Royer, A. Tovar-Mendez, P. A. Covey, L.A. Dempsey, A.M. Randle, S. M. Stack, J.K.C. Rose, B. McClure and P. A. Bedinger (2013) Developmental onset of reproductive barriers and associated proteome changes in stigma/styles of Solanum pennellii J. Experimental Botany 64: 265-279 (selected for cover)

Lopez-Casado, G., P. A. Covey, P. A. Bedinger, L. A. Mueller, T. W. Thannhauser, S. Zhang, Z. Fei, J. J. Giovannoni and J. K.C. Rose (2012) Enabling Proteomic Studies with RNA-Seq: The Proteome of Tomato Pollen as a Test Case Proteomics 12: 761-774

Bedinger, P. A., R. Chetelat, B. McClure, L. Moyle, J. Rose, S. Stack, E. van der Knaap, Y. S.  Baek, G. Lopez-Casado, P. Covey, A. Kumar, W. Li, ,  R. Nunez, and S. Royer (2010) Interspecific Reproductive Barriers in the Tomato Clade: Opportunities to Decipher Mechanisms of Reproductive Isolation, Sexual Plant Reproduction, in press, DOI 10.1007/s00497-010-0155-7

Covey, P., R.L. Parsons, C. A. Ryan, F. Lay, M. Anderson, G. Pearce and P. A. Bedinger (2010)  PRALF, a peptide regulator of pollen tube growth in S. lycopersicum Plant Physiology 153: 703-715

Covey, P.A., K. Kondo, L. Welch, E. Frank, S. Sianta, A. Kumar, E.van der Knaap, R. Nunez, G. Lopez-Casado, J.K.C. Rose, B.A. McClure, and P.A. Bedinger (2010) Multiple Features that Distinguish Unilateral Incongruity and Self-incompatibility in the Tomato Clade, The Plant Journal 64: 367–378

Bedinger, P.A., G. L. Pearce, and P. A. Covey (2010) RALFs: peptide regulators of plant growth, Plant Signaling and Behavior 5: 1-5

Anderson, L.K., P.A. Covey, L.R. Larsen, P.A. Bedinger, and S.M. Stack (2010) Structural differences in chromosomes distinguish species in the tomato clade. Journal of Cytogenetics and Genome Research 129: 24-34

Li, L-C, P. A. Bedinger, Volk, C. A. Volk, D. A. Jones and D. J. Cosgrove (2003) Purification and Characterization of Four -Expansins (Zea m 1 Isoforms) from Maize Pollen Plant Physiology 132: 2073-2085

Baumberger N., B. Doesseger , R. Guyot , A. Diet, R.L. Parsons, M.A. Clark, M.P. Simmons, P. Bedinger, C. Ringli and B. Keller (2003) Whole-genome comparison of LRR-extensins (LRXs) in Arabidopsis thaliana and Oryza sativa: a conserved family of cell wall proteins form a vegetative and a reproductive clade. Plant Physiology 131: 1313-1326

Chaubal, R, J.R. Anderson, M.R. Trimnell, T.W. Fox, M.C. Albertsen and P. Bedinger (2003) The transformation of anthers in the msca1 mutant of maize, Planta 216: 778-788

Anderson, J.R., W.S. Barnes, and P. Bedinger (2002) The effect of 2,6-Dichlorobenzonitril, an inhibitor of cellulose biosynthesis, on the in vitro growth of petunia and lily pollen tubes, Journal of Plant Physiology 159: 62-67

Stratford, S., W. Barnes, D.L. Hohorst, J.G. Sagert, A. Golubiewski, A.M. Showalter, S. McCormick, R. Cotter and P. Bedinger (2001) A leucine-rich repeat region is conserved in pollen extensin-like (Pex) proteins in monocots and dicots. Plant Molecular Biology 46: 43-56

Bedinger, P., DL. Hohorst, S. Stratford, W. Barnes, J.G Sagert, R. Cotter, A. Golubiewski, J.R. Anderson and S. McCormick (2001) Extensin chimeras in the pollen extracellular matrix: possible role in cell-cell communication. In Cell Biology of Plant and Fungal Tip Growth, NATO Science Series, A. Geitmann, M. Cresti, I.B. Heath, eds., IOS press, pg 171-186

Chaubal, R., C. Zanella, M.R. Trimnell, T.W. Fox, M.C. Albertsen and P. Bedinger (2000) Two male-sterile mutants of maize with an extra cell division in the anther wall. American Journal of Botany 87:1193-1201