Evolutionary biologists seek to understand the factors affecting genetic variation. While it is intuitive that environmental heterogeneity should increase levels of variation, theoretical models showe
Here we present an analysis of latitudinal genomic variation in Drosophila melanogaster occurring in parallel in North America and Australia. We find evidence of substantial, shared selection response
The laboratory selected DDT resistant and control strains 91-R and 91-C, respectively, represent lines that have a common origin, have been kept side-by-side in the laboratory, yet while 91-C received
