Analyze genetic data with this tool. BayeScan help you identify candidate loci under natural selection from genetic data, using differences in allele frequencies between populations.
BayeScan is based on the multinomial-Dirichlet model. One of the simplest possible scenarios covered consists of an island model in which subpopulation allele frequencies are correlated through a common migrant gene pool from which they differ in varying degrees.
The difference in allele frequency between this common gene pool and each subpopulation is measured by a subpopulation specific FST coefficient. Therefore, this formulation can consider realistic ecological scenarios where the effective size and the immigration rate may differ among subpopulations.

The license of this software is Freeware, you can free download and free use this calculator software.