NCBI accession numbers and related metadata for an SRA archive of the Pacific oyster, Magallana gigas

The massive geographic expansion of terrestrial plant crops, livestock, and marine aquacultured species during the 19th and 20th centuries provided local economic benefits, stabilized food demands, and altered local ecosystems. The invasion history of these translocations remains uncertain for most species, limiting our understanding of their future adaptive potential and historical roles as vectors for co-invaded species. We provide a framework for filling this gap in invasion biology using the widely transplanted Pacific oyster (Magallana gigas) as a case study. A two-dimensional summary of population-level variation in single nucleotide polymorphisms (SNPs) in native Japan reflected the geographical map of Japan and allowed identification of the source regions for the worldwide expansion. Pacific oysters proliferate in non-native areas with environmental temperatures similar to those areas where native lineages evolved.