Parallel geographic variation in Drosophila melanogaster.

ABSTRACT: Drosophila melanogaster, an ancestrally African species, has recently spread throughout the world, associated with human activity. The species has served as the focus of many studies investigating local adaptation relating to latitudinal variation in non-African populations, especially those from the United States and Australia. These studies have documented the existence of shared, genetically determined phenotypic clines for several life history and morphological traits. However, there are no studies designed to formally address the degree of shared latitudinal differentiation at the genomic level. Here we present our comparative analysis of such differentiation. Not surprisingly, we find evidence of substantial, shared selection responses on the two continents, probably resulting from s

SUBMITTER: Reinhardt JA 

PROVIDER: S-EPMC4012493 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature