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For almost 2 centuries it has been disputed whether Tuber aestivum and Tuber uncinatum constitute two different species of truffles. Molecular markers have been applied previously to contribute to resolving this question, coming to different conclusions. In this study, we address this question by analyzing the genetic structure of truffles assigned to either of the two putative species from a geographically broad sampling across Europe. We used an approach involving multigene phylogenies and coalescent analyses of nine regions from five genes. All tests conducted supported the conspecificity of Tuber aestivum and Tuber uncinatum.