DNA from herbarium specimens settles a controversy about origins of the European potato.

@article{Ames2008DNAFH,
  title={DNA from herbarium specimens settles a controversy about origins of the European potato.},
  author={Mercedes Ames and David M. Spooner},
  journal={American journal of botany},
  year={2008},
  volume={95 2},
  pages={
          252-7
        }
}
Landrace potato cultivars are native to two areas in South America: the high Andes from eastern Venezuela to northern Argentina and the lowlands of south-central Chile. Potato first appeared outside of South America in Europe in 1567 and rapidly diffused worldwide. Two competing hypotheses suggested the origin of the "European" potato from the Andes or from lowland Chile, but the Andean origin has been widely accepted over the last 60 years. All modern potato cultivars predominantly have… 

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