SAMOVA is a program to define by a simulated annealing approach the genetic structure of populations, implements an approach to define groups of populations that are geographically homogeneous and maximally differentiated from each other. As a by-product, it also leads to the identification of genetic barriers between these groups. The method is based on a simulated annealing procedure that aims at maximizing the proportion of total genetic variance due to differences between groups of populations (SAMOVA, Spatial Analysis of MOlecular VAriance).

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