Acknowledgements:
We thank all farmers and the VITIVAL (Valais association for
viticulture) groups for their collaboration and allowing us to do this
study on their vineyards. We are grateful to Elisabeth Klaus, Beatrice
Schranz and Franziska Arnold for field and lab assistance. To Michael
Koch for the bioinformatic support. Financial support was granted by the
Swiss National Science Foundation to Alain Jacot (31003A_149780) and to
D.S. (P500PB_206883) and to P.N. by the Béatrice Ederer-Weber
Foundation and the Vinetum Foundation.