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Journal Papers


  • Huang, Z. N.D. Young, M. Reagon, K.E. Hyma, K.M. Olsen, Y. Jia, and A. L. Caicedo. 2017. All roads lead to weediness: patterns of genomic divergence reveal extensive recurrent weedy rice origins from South Asian Oryza. Molecular Ecology. 26: 3151-3167.

  • Li, L-F., Y.-L. Li, Y. Jia, A.L. Caicedo*, and K.M. Olsen*. 2017. Signatures of adaptation in the weedy rice genome. Nature Genetics 49:811-814. *co-corresponding authors


  • Tyler, L., S.J. Lee, N.D. Young, G.A. DeIulio, E. Benavente, M. Reagon, J. Sysopha, R.M. Baldini, A. Troìa, S.P. Hazen, and A.L. Caicedo. 2016. Population structure in the model grass Brachypodium distachyon is highly correlated with flowering differences across broad geographic areas. Plant Genome, 9. doi: 10.3835/plantgenome2015.08.0074

  • Cui, Y., B.K. Song, L.F. Li, Y.L. Li, Z. Huang, A.L. Caicedo, Y. Jia, K.M. Olsen. 2016. Little white lies: pericarp color provides insights into the origins and evolution of Southeast Asian weedy rice. G3, 6: 4105-4114.

  • Singh, V., N.R. Burgos, S. Singh, D.R. Gealy, E.E. Gbur, A.L. Caicedo. 2016. Impact of volunteer rice infestation on yield and grain quality of rice. Pest Management Science. Doi: 10.1002/ps.4343

  • Liu, Y., Y. Jia, D. Gealy, D.M. Goad, A.L. Caicedo, K.M. Olsen. 2016. Marker development for rice blast resistance gene Pi66(t) and application in the USDA rice mini-core collection. Crop Science. 56: 1-8.


  • López-Alvarez, D., Manzaneda, A.J., Rey, P.J., Giraldo, P., Benavente, E., Allainguillaume, J., Mur, L., Caicedo, A.L., Hazen, S.P., Breiman, A., Ezrati, S., Catalán, P. (2015) Environmental niche variation and evolutionary diversification of the Brachypodium distachyon grass complex species in their native circum-Mediterranean range. American Journal of Botany,102: 1–16.

  • Qi, X.-S., Y. Liu, C.C. Vigueira, N.D. Young, A.L. Caicedo, Y. Jia, D.R. Gealy, and K.M. Olsen. 2015. More than one way to evolve a weed: Parallel evolution of U.S. weedy rice through independent genetic mechanisms. Molecular Ecology, 24: 3329–3344.

  • Liu, Y., X. Qi, D.R. Gealy, K.M. Olsen, A.L. Caicedo, and Y. Jia. 2015. QTLs analysis for resistance to blast disease in US weedy rice. Molecular Plant-Microbe Interactions, 28: 834-844.

  • Ziska, L.H., D.R. Gealy, N.R. Burgos, A.L. Caicedo, J. Gressel, A.L. Lawton-Rauh, L.A. Avila, G. Theisen, J. Norsworthy, A. Ferrero, F. Vidotto, D.E. Johnson, F.G. Ferreira, E. Marchesan, V. Menezes, M.A. Cohn, S. Linscombe, L. Carmona, R. Tang and A. Merotto, Jr. 2015. Weedy (Red) Rice: An Emerging Constraint to Global Rice Production. Advances in Agronomy, 129: 181-228.

  • Liu, Y., X. Qi, N.D. Young, K.M. Olsen, A.L. Caicedo, and Y. Jia.2015. Characterization of resistance genes to rice blast fungus Magnaporthe Oryzae in a “Green revolution” rice variety. Molecular Breeding. 35: 52.


  • Burgos, N.R., V. Singh, T.M. Tseng, H. Black, N. D. Young, Z. Huang, K.E. Hyma, D. R. Gealy, and A.L. Caicedo. 2014. The impact of herbicide-resistant rice technology on phenotypic diversity and population structure of U.S. weedy rice. Plant Physiology. 166: 1208-1220.

  • Thurber, C.S., M. Reagon, K.M. Olsen, Y. Jia, and A.L. Caicedo. 2014. The evolution of flowering strategies in US weedy rice. American Journal of Botany, 101:1737-1747.

  • Craig, S., M. Reagon, L. Resnick and A.L. Caicedo. 2014. Allele distributions at hybrid incompatibility loci facilitate the potential for gene flow between cultivated and weedy rice in the US. PLOS One. 9(1): e86647.


  • Vigueira, C.C., K.M. Olsen ,and A.L. Caicedo. 2013. The red queen in the corn: Agricultural weeds as models of rapid adaptive evolution. Heredity, 110: 301-311.

  • Thurber, C.S., M.H. Jia, Y. Jia, and A.L. Caicedo. 2013. Similar traits, different genes? Examining convergent evolution in related weedy rice populations. Molecular Ecology, 22: 685–698.


  • Lee, S., Y. Jia, M. Jia, D.R. Gealy, K.M. Olsen, and A.L. Caicedo. 2011. Molecular evolution of the rice blast resistance gene Pi-ta in invasive weedy rice in the USA. PLos ONE, 6: e26260.

  • Reagon, M., C.S. Thurber, K.M. Olsen, Y. Jia, A.L. Caicedo. 2011. The long and the short of it: SD1 polymorphism and the evolution of growth trait divergence in U.S. weedy rice. Molecular Ecology, 20: 3743-3756.

  • Hyma, K.E. and A.L. Caicedo. 2011. Shedding light on the evolution of plasticity in natural populations. Molecular Ecology, 20: 3491-3493.

  • Brkljacic J., Grotewold E., Scholl R., Mockler T., Garvin D.F., Vain .P, Brutnell T., Sibout R., Bevan M., Budak H., Caicedo A.L., Gao C., Gu Y., Hazen S.P., Holt III B.F., Hong S-Y, Jordan M., Manzaneda A.J., Mitchell-Olds T., Mochida K., Mur L.A.J., Park C-M, Sedbrook J., Watt M., Zheng S.J., Vogel J.P. 2011. Brachypodium as a model for the grasses: Today and the future. Plant Physiology, 157: 3-13.

  • Thurber, C.S., P.K. Hepler, and A.L. Caicedo. 2011. Timing is everything: early degradation of abscission layer is associated with increased seed shattering in U.S. weedy rice. BMC Plant Biology, 11: 14.


  • Mather, K.A., J. Molina, J.M. Flowers, S. Rubinstein, B.L. Rauh, A. Lawton-Rauh, A.L. Caicedo, K.L. McNally, and M.D. Purugganan. 2010. Migration, isolation and hybridization in island populations: The case of Madagascar rice. Molecular Ecology, 19: 4892-4905.

  • Thurber, C.S., M. Reagon, B.L. Gross, K.M. Olsen, Y. Jia, and A.L. Caicedo. 2010. Molecular evolution of shattering loci in U.S. weedy rice. Molecular Ecology, 19: 3271-3284.

  • Gross, B.L., M. Reagon, S.C. Hsu, A.L. Caicedo, Y. Jia, and K.M. Olsen. 2010. Seeing red: the origin of grain pigmentation in US weedy rice. Molecular Ecology, 19: 3380-3393.

  • Reagon, M., C.S. Thurber, B.L. Gross, K.M. Olsen, Y. Jia, and A.L Caicedo. 2010. Genomic patterns of nucleotide diversity in divergent populations of U.S. weedy rice. BMC Evolutionary Biology, 10: 180.


  • Lee, S, S. Costanzo, Y. Jia, K.M. Olsen, and A.L. Caicedo. 2009. Evolutionary dynamics of the genomic region around the blast resistance gene Pi-ta in AA genome Oryza species. Genetics, 183. 1315-1325.

  • Caicedo, A.L., C. Richards, I.M. Ehrenreich, and M.D. Purugganan. 2009. Complex rearrangements lead to novel chimeric gene fusion polymorphisms at the Arabidopsis thaliana MAF2-5 flowering time gene cluster. Molecular Biology and Evolution, 26: 699 - 711.


  • Caicedo, A.L. 2008. Geographic diversity cline of R gene homologs in wild populations of Solanum pimpinellifolium (Solanaceae). American Journal of Botany, 95: 393-398.


  • Mather, K.A., A.L. Caicedo, N.R. Polato, K.M. Olsen, S. McCouch and M.D. Purugganan. 2007. The extent of linkage disequilibrium in rice (Oryza sativa L.). Genetics. 177: 2223–2232.

  • Caicedo, A.L.*, S.H. Williamson*, R.D. Hernandez, A. Boyko, A. Fledel-Alon, T.L. York, N. Polato, K.M. Olsen, R. Nielsen, S. McCouch, C.D. Bustamante, and M.D. Purugganan. 2007. Genome-wide patterns of nucleotide polymorphism in domesticated rice. PLoS Genetics 3: e163. *shared authorship

  • Olsen, K.M., A.L. Caicedo, and Y. Jia. 2007. Evolutionary genomics of weedy rice in the U.S.A. Journal of Integrative Plant Biology 49, 811-816.

  • Korves, T.M., K.J. Schmid, A.L. Caicedo, C. Mays, J.R. Stinchcombe, M.D. Purugganan, and J. Schmitt. 2007. Fitness effects associated with the major flowering time gene FRIGIDA in Arabidopsis thaliana in the field. American Naturalist 169, E141-E157.


  • Olsen, K.M., A.L. Caicedo, N. Polato, A. McClung, S. McCouch, M.D. Purugganan. 2006. Selection under domestication: Evidence for a sweep in the rice Waxy genomic region. Genetics 173: 975-983.


  • Stinchcombe, J.R., A.L. Caicedo, R. Hopkins, C. Mays, M.D. Purugganan, and J. Schmitt. 2005. Vernalization sensitivity in Arabidopsis thaliana: the effects of latitude and FLC variation. American Journal of Botany 92: 1701-1707.

  • Caicedo, A.L. and M.D. Purugganan. 2005. Comparative plant genomics: frontiers and prospects. Plant Physiology 138: 545-547.


  • Caicedo, A.L. and B.A. Schaal, 2004. Heterogeneous evolutionary processes affect R gene diversity in natural populations of Solanum pimpinellifolium. Proceedings of the National Academy of Sciences USA 101: 17444-17449.

  • Caicedo, A.L., J.R. Stinchcombe, K.M. Olsen, J. Schmitt and M.D. Purugganan, 2004. Epistatic interaction between the Arabidopsis FRI and FLC flowering time genes generates a latitudinal cline in a life history trait. Proceedings of the National Academy of Sciences USA 101: 15670-15675.

  • Caicedo, A.L. and B.A. Schaal, 2004. Population structure and phylogeography of Solanum pimpinellifolium inferred from a nuclear gene. Molecular Ecology 13: 1871-1882.


  • Schaal, B.A., J.F. Gaskin, and A.L. Caicedo, 2003. Phylogeography, haplotype trees, and invasive plant species. Journal of Heredity 94: 197-204.

  • Kover, P.X. and A.L. Caicedo, 2001. The genetic architecture of disease resistance in plants and the maintenance of recombination by parasites. Molecular Ecology 10: 1-16.

  • Caicedo, A.L., B.A. Schaal, and B.N. Kunkel, 1999. Diversity and molecular evolution of the RPS2 resistance gene in Arabidopsis thaliana. Proceedings of the National Academy of Sciences USA 96: 302-306.

  • Caicedo, A.L., E. Gaitan, M.C. Duque, O.Toro, D.G. Debouck, J.Tohme, 1999. AFLP fingerprinting of Phaseolus lunatus L. and related wild species from South America. Crop Science 39: 1497-1507.

Book Chapters

  • Labate, J.A., S. Grandillo, T. Fulton, S. Muños, A.L. Caicedo, I. Peralta, Y. Ji, R.T. Chetelat, et al. (39 authors in total). 2007. Tomato. p.1-125. In C. Kole (ed.) Genome mapping and molecular breeding in plants: Volume 5 Vegetables. Springer Publishing Co., NY.

  • Caicedo, A.L. and I. Peralta. 2012. Basic information on the plant. In B. Liedl, J. Labate, J. Stommel, A. Slade, S. Hurst (ed.) Tomato (Genomics of Fruit and Vegetable Crops series), Science Publishers, NH.