Through dna profiling, researchers in Anna Schneider’s laboratory at Torino and José Vouillamoz at davis found that Nebbiolo Rosé is not a clone of Nebbiolo but is a distinct variety. Furthermore, Nebbiolo Rosé turned out to have a parent–offspring relationship with Nebbiolo. Several additional parent–offspring relationships were discovered between Nebbiolo and traditional varieties from Piedmont (freisa, vespolina, and Bubbierasco) and Valtellina (Negrera and Rossola). While the complete pedigree of Nebbiolo is still unknown, these relationships indicate that Nebbiolo probably has its roots in Piedmont and/or Lombardia. In addition, a possible parent–offspring relationship was suggested between Freisa and viognier, so that Nebbiolo and Viognier are likely to be cousins.
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