Data from: Deep phylogeographic structure and environmental differentiation in the carnivorous plant Sarracenia alata

We collected ~29kb of sequence data using Roche 454 pyrosequencing in
order to estimate the timing and pattern of diversification in the
carnivorous pitcher plant Sarracenia alata. Utilizing modified protocols
for reduced representation library construction, we generated sequence
data from 86 individuals across 10 populations from throughout the range
of the species. We identified 76 high quality and high coverage loci
(containing over 500 SNPs) using the bioinformatics pipeline PRGmatic.
Results from a Bayesian clustering analysis indicate that populations are
highly structured, and are similar in pattern to the topology of a
population tree estimated using *BEAST. The pattern of diversification
within S. alata implies that riverine barriers are the primary factor
promoting population diversification, with divergence across the
Mississippi River occurring more than 60,000 generations before present.
Further, significant patterns of niche divergence and the identification
of several outlier loci suggest that selection may contribute to
population divergence. Our results demonstrate the feasibility of using
next-generation sequencing to investigate intraspecific genetic variation
in non-model species.