Data from: Genetic evidence for the uncoupling of local aquaculture activities and a population of an invasive species – a case study of Pacific oysters (Crassostrea gigas) ...

• Main Authors: Kochmann, Judith, Carlsson, Jens, Crowe, Tasman P., Mariani, Stefano
• Format: Dataset
• Language: English
• Published: Dryad 2012
• Subjects: Aquaculture; anonymous microsatellites; EST-linked microsatellites; Crassostrea gigas; Pacific; Pacific oyster
• Online Access: https://dx.doi.org/10.5061/dryad.4g96s; https://datadryad.org/stash/dataset/doi:10.5061/dryad.4g96s

Human-mediated introduction of non-native species into coastal areas via aquaculture is one of the main pathways that can lead to biological invasions. To develop strategies to counteract invasions it is critical to determine whether populations establishing in the wild are self-sustaining or based on repeated introductions. Invasions by the Pacific oyster (Crassostrea gigas) have been associated with the growing oyster aquaculture industry worldwide. In this study, temporal genetic variability of farmed and wild oysters from the largest enclosed bay in Ireland was assessed to reconstruct the recent biological history of the feral populations using seven anonymous and seven microsatellites linked to expressed sequence tags (ESTs). There was no evidence of EST-linked markers showing footprints of selection. Allelic richness was higher in feral than in aquaculture samples (p=0.003, paired t-test). Significant deviations from Hardy-Weinberg equilibrium (HWE) due to heterozygote deficiencies were detected for ... : 14lociDRYADThe datafile is in GENEPOP format. It comprises genotype scores for 14 Crassostrea gigas-specific microsatellite loci. Locus names are listed at the beginning of the file under the title line, the first 7 loci are EST linked loci, the last 7 are anonymous loci. The first column under the loci names indicates the 6 population (WONE, WTWO, WTHR, AQON, AQTW, BONE) and their individuals. The genotypes for each individual and loci are in the columns 2 – 15. Missing genotypes are coded as "000". Allele scores for each locus are concatenated into six digits, with the first three letters representing allele "A", and the second three letters representing allele "B". ...