Data for: Microsatellite-Based Assessment of Genetic Diversity and Population Structure in Wild and Farmed Gilthead Seabream (Sparus aurata) from Türkiye

Published: 22 September 2026| Version 1 | DOI: 10.17632/m34t8wywkw.1
Contributor:
Türker BODUR

Description

This dataset contains the raw genotype data and analysis outputs underlying the study "Microsatellite-Based Assessment of Genetic Diversity and Population Structure in Wild and Farmed Gilthead Seabream (Sparus aurata) from Türkiye." A total of 278 gilthead seabream were analysed: four wild populations from the Turkish Mediterranean and Aegean coasts (Yumurtalık [WYMR], Köyceğiz [WKYC], Doğanbey/Karina [WDGN], and Enez [WENZ]), two farmed stocks sourced from different commercial hatcheries (İzmir [FARMA]; Akbük [FARMB]), and one wild reference population from Messolonghi Lagoon, Greece (WMES). Wild Turkish samples were obtained from gillnet catches between September and November 2016; the Greek sample was provided as pre-extracted DNA by HCMR (Heraklion, Greece). Individuals were genotyped at 12 microsatellite loci (a subset of the panel of Polovina et al., 2020); one locus (C67b) was excluded for a high frequency of null alleles, leaving 11 loci for analysis. The dataset includes: Full FSTAT output: allele frequencies, number of alleles, gene diversity, allelic richness (rarefied to 27 diploid individuals), observed and expected heterozygosity, F-statistics (FIS, FIT, FST), Weir & Cockerham estimates with 95%/99% confidence intervals, and Hardy–Weinberg randomisation tests (sheet "Fstat"). Analysis of Molecular Variance results, non-hierarchical and hierarchical by origin (sheet "AMOVA"). Principal Coordinates Analysis coordinates (sheet "PCoA"). STRUCTURE Harvester / Evanno-method output used to determine the optimal number of clusters, K = 2 (sheet "Delta K"). BOTTLENECK v1.2.02 outputs (heterozygosity-excess tests under the SMM and TPM, and the mode-shift test) used to test for recent reductions in effective population size. These data support all diversity, differentiation, sibship/effective-breeder (COLONY), and demographic analyses reported in the article and allow full reproduction of the tables and figures.

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Microsatellite DNA

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