Rangewide population genetic analysis of the wood turtle (<em>Glyptemys insculpta</em>)

Wood Turtle (Glyptemys insculpta) populations are declining in many portions of the species’ native range due to multiple factors that might influence functional connectivity and population genetic structure. We used 13 microsatellite markers to examine patterns of genetic structure in the Wood Turtle across its native range in Eastern and Midwestern North America. For n = 45 collections with 15 or more individuals (total N = 1,258), multiple clustering approaches revealed two major genetic groups corresponding to the midwestern and eastern collections. Interestingly, a sample from lower Michigan clustered with the eastern group while a sample from the Upper Peninsula of Michigan clustered with the midwestern group. Evidence of gene flow between these two major groups arose from the most proximate sites near the edges of each group. These results suggest that Lake Superior and Lake Michigan were historically substantial (but perhaps not complete) barriers to gene flow. Our results sugge..., , # Rangewide population genetic analysis of the wood turtle (*Glyptemys insculpta*) Dataset DOI: [10.5061/dryad.jm63xsjrc](https://doi.org/10.5061/dryad.jm63xsjrc) ## Description of the data and file structure Microsatellite data set for Wood Turtle (*Glyptemys insculpta)* from across the species range. ### Files and variables #### File: Glin_Apr2024_filtered_FINAL_ConGeneticsMSOnly.csv **Description:** ##### Variables * State: US state or Canadian province * PSEUDOCODE: identifies the collection (location name. For purposes of protecting animals from the illegal pet trade, we have changed all location names to artificial pseudonames that do not reveal any information about the true location name * psuedo.ind: Individual ID preceded by the pseudocode * HUC4: 4-digit Hydrologic Unit Code * Eb17.1: microsatellite locus name, first allele at that locus * Eb17.2: microsatellite locus name, second allele at that locus * GmuD16.1:microsatellite locus name, first allele at that locus *..., ,