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Ana Caicedo

Associate Professor

Research areas include evolution, population genetics, genomics, and next-generation sequencing.

Current Research
We seek to understand the genetic basis of adaptation, as well as the population and genomic context in which adaptive evolution occurs. We currently combine tools from traditional genetics, next-generation sequencing, and evolutionary analyses to understand the origin and genetic basis of weed-adaptive traits in the noxious agricultural weed, red rice. We are also leveraging genomic resources and expression analyses to discover the evolutionary processes that have driven fleshy fruit phenotypic diversification in the tomato clade, as well as fruit changes during the domestication process. Among the questions we address are:

  • Which are the genes underlying adaptive traits?
  • How is variation at these genes distributed at the population level?
  • What evolutionary forces act on these genes and what are their molecular and genomic signatures?

Learn more at www.bio.umass.edu/biology/caicedo/

Academic Background

  • BS Universidad de los Andes, Bogotá, Colombia, 1996
  • PhD Washington University in St. Louis, 2003
  • Postdoctoral Training North Carolina Sate University 2003-2006
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.
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.
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.
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.*, 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.
 
Contact Info

Department Biology
LSL N425
240 Thatcher Way
Amherst, MA 01003-9292

(413) 545-0975
caicedo@bio.umass.edu

www.bio.umass.edu/biology/caicedo/