Data from: Genomewide introgressive hybridization patterns in wild Atlantic salmon influenced by inadvertent gene flow from hatchery releases ...

• Main Authors: Ozerov, Mikhail Y., Gross, Riho, Bruneaux, Matthieu, Vähä, Juha-Pekka, Burimski, Oksana, Pukk, Lilian, Vasemägi, Anti
• Format: Dataset
• Language: English
• Published: Dryad 2016
• Subjects: Captive Populations; Salmo salar L.; Atlantic salmon; Salmo salar
• Online Access: https://dx.doi.org/10.5061/dryad.p00gd; https://datadryad.org/stash/dataset/doi:10.5061/dryad.p00gd

Many salmonid fish populations are threatened by genetic homogenization, primarily due to introgressive hybridization with hatchery-reared conspecifics. By applying genomewide analysis using two molecular marker types (1986 SNPs and 17 microsatellites), we assessed the genetic impacts of inadvertent gene flow via straying from hatchery releases on wild populations of Atlantic salmon in the Gulf of Finland, Baltic Sea, over 16 years (1996–2012). Both microsatellites and SNPs revealed congruent population genetic structuring, indicating that introgression changed the genetic make-up of wild populations by increasing genetic diversity and reducing genetic divergence. However, the degree of genetic introgression varied among studied populations, being higher in the eastern part and lower in the western part of Estonia, which most likely reflects the history of past stocking activities. Using kernel smoothing and permutation testing, we detected considerable heterogeneity in introgression patterns across the ... : Individual genotypes (17 microsatellites)Individual genotype data assessed at 17 microsatellite lociOzerov_et_al_2016_Individual_microsatellite_genotypes.xlsxEstimated SNP allele frequenciesSNP name, chromosome position on the female and male map (cM) and estimated allele A frequency of pooled DNA samplesOzerov_et_al_2016_estimated_SNP_allele_frequencies.xlsxKernel smoothing & permutation test R scriptCustom-made R script to perform kernel smoothing and permutation testsKernel_smoothing&permutation_test_script.R ...