Arabidopsis thaliana lives in a remarkable variety of habitats throughout much of the world. The unparalleled genetic resources available in this species, and the ability to rapidly map the genetic basis of ecologically important traits, allows study of the genomics of adaptation to these diverse habitats. We are undertaking such studies both by targeting phenotypes of interest and by examining fitness differences among accessions from varying locations. These studies promise to reveal how biotic and abiotic factors jointly contribute to the distribution of A. thaliana accessions, and the genetic variants that they possess.

> Local adaptation in Swedish beach populations of A. thaliana

> The genetics of local adaptation in Swedish Arabidopsis thaliana populations

University of Chicago, Dept. of Ecology & Evolution