Comparison of Asr genes to Phaseolus vulgaris general nucleotide diversity. π (E-2)statistic from the wild collection was computed. The background distribution was estimated by Cortés et al.. Asr1 and Asr2 are indicated by arrows in the corresponding classes. Population structure and adaptive selection are associated with a high π values, but bottlenecks and directional selection is associated with low π value.
Cortés et al. BMC Genetics 2012 13:58 doi:10.1186/1471-2156-13-58