Genotypic diversity of stolbur genes <i>secY</i>, <i>stamp</i> and <i>vmp1</i> in four predefined European regions, (1) the host-shift population Germany, (2) a putative transition population Switzerland, and the two putative regions of origin, (3) Italy and southern France, and (4) Slovenia and Cr

The region Switzerland includes Swiss samples north and west of the Alps. The region Italy/France includes samples from the Swiss canton Ticino, situated south of the Alps and part of the Italian Po Basin. The gene stol-11 was monomorphic in tuf-a stolbur and not included. Genotype frequencies are shown in Appendix S3. *includes the Swiss canton Ticino south of the Alps.