Evolutionary inferences from the analysis of exchangeability.

ABSTRACT: Evolutionary inferences are usually based on statistical models that compare mean genotypes or phenotypes (or their frequencies) among populations. An alternative is to use the full distribution of genotypes and phenotypes to infer the "exchangeability" of individuals among populations. We illustrate this approach by using discriminant functions on principal components to classify individuals among paired lake and stream populations of threespine stickleback in each of six independent watersheds. Classification based on neutral and nonneutral microsatellite markers was highest to the population of origin and next highest to populations in the same watershed. These patterns are consistent with the influence of historical contingency (separate colonization of each watershed) and subsequent g

SUBMITTER: Hendry AP 

PROVIDER: S-EPMC3852416 | biostudies-literature | 2013 Dec

REPOSITORIES: biostudies-literature