Population genomics of parallel adaptation in threespine stickleback using sequenced RAD tags.

ABSTRACT: Next-generation sequencing technology provides novel opportunities for gathering genome-scale sequence data in natural populations, laying the empirical foundation for the evolving field of population genomics. Here we conducted a genome scan of nucleotide diversity and differentiation in natural populations of threespine stickleback (Gasterosteus aculeatus). We used Illumina-sequenced RAD tags to identify and type over 45,000 single nucleotide polymorphisms (SNPs) in each of 100 individuals from two oceanic and three freshwater populations. Overall estimates of genetic diversity and differentiation among populations confirm the biogeographic hypothesis that large panmictic oceanic populations have repeatedly given rise to phenotypically divergent freshwater populations. Genomic regions ex

SUBMITTER: Hohenlohe PA 

PROVIDER: S-EPMC2829049 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature