Genotype data from: Extent of stream habitat and hybridization influence levels of genetic diversity in Redband Trout (<em>Oncorhynchus mykiss gairdneri</em>) populations

Habitat loss and fragmentation have isolated many species into small geographic areas. This is especially true of stream fishes, where alteration of waterways has restricted many species to headwater tributaries, leading to low abundances and threatening loss of genetic diversity. In addition, hybridization and introgression with introduced game fishes can impact the distribution of genetic variation among native populations. To assess the effects of habitat extent and hybridization on genetic diversity in a stream-dwelling fish, we conducted a study of Redband Trout (Oncorhynchus mykiss gairdneri) populations within the southernmost drainages of the Snake River basin using a panel of 236 neutral biallelic single-nucleotide polymorphism (SNP) markers. Introgression between Redband Trout and hatchery strains of coastal Rainbow Trout (Oncorhynchus mykiss irideus) was found in nearly half of the populations assessed, where high levels of admixture corresponded to increased heterozygosity. ..., , # Genotype data from: Extent of stream habitat and hybridization influence levels of genetic diversity in Redband Trout (*Oncorhynchus mykiss gairdneri*) populations Dataset DOI: [10.5061/dryad.6hdr7srd0](10.5061/dryad.6hdr7srd0) ## Description of the data and file structure Genotype data for fish samples used in the publication: \"Extent of stream habitat and hybridization influence levels of genetic diversity in Redband Trout (*Oncorhynchus mykiss gairdneri*) populations\". Samples were genotyped at 236 biallelic single nucleotide polymorphisms (SNPs). These SNPs have all been identified as neutral markers. Tissue was collected from the pelvic or caudal fin of fish sampled, and extracted DNA was sequenced utilizing the Genotyping-In-Thousands by Sequencing (GT-seq) method.  ### Files and variables #### File: Zambie_et_al._Redband_Genotypes.txt **Description:** All genotype information is present in the text file Zambie*_*et_al._Redband_Genotypes.txt in genepop file format #####...,