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Human migrations over many centuries have resulted in considerable movements of organisms beyond their natural ranges. Study of these exotic introductions can help us to understand their ecology and biology as well as provide clues for the management of biological invasions. Suillus luteus is one of the most abundant globally introduced symbiotic fungi associated with exotic pine afforestation. I studied the population genomics of native and introduced populations of this ectomycorrhizal fungus to understand its evolution and genetics. Whole genomes of 274 S. luteus strains along with strains of closely related sister species were sequenced using the Illumina sequencing platform. These strains represent native populations of S. luteus from its native range across Europe and Asia as well as from five introduced populations in North America, South America, Australia, New Zealand, and Africa. Taking advantage …