Estimation of isolation times of the island species in the Drosophila simulans complex from multilocus DNA sequence data.

ABSTRACT:

Background

The Drosophila simulans species complex continues to serve as an important model system for the study of new species formation. The complex is comprised of the cosmopolitan species, D. simulans, and two island endemics, D. mauritiana and D. sechellia. A substantial amount of effort has gone into reconstructing the natural history of the complex, in part to infer the context in which functional divergence among the species has arisen. In this regard, a key parameter to be estimated is the initial isolation time (t) of each island species. Loci in regions of low recombination have lower divergence within the complex than do other loci, yet divergence from D. melanogaster is similar for both classes. This might reflect gene flow of the low-recombination loci subsequent to i

SUBMITTER: McDermott SR 

PROVIDER: S-EPMC2413010 | biostudies-literature | 2008 Jun

REPOSITORIES: biostudies-literature