Identifying environmental correlates of intraspecific genetic variation.

ABSTRACT: Genetic variation is critical to the persistence of populations and their capacity to adapt to environmental change. The distribution of genetic variation across a species' range can reveal critical information that is not necessarily represented in species occurrence or abundance patterns. We identified environmental factors associated with the amount of intraspecific, individual-based genetic variation across the range of a widespread freshwater fish species, the Murray cod Maccullochella peelii. We used two different approaches to statistically quantify the relative importance of predictor variables, allowing for nonlinear relationships: a random forest model and a Bayesian approach. The latter also accounted for population history. Both approaches identified associations between homozy

SUBMITTER: Harrisson KA 

PROVIDER: S-EPMC4981683 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature