The wild grape, Vitis vinifera L. subsp. sylvestris (Gmelin, Hegi) is spontaneous in Europe and it is considered the ancestor of cultivated varieties (Vitis vinifera L. subsp. sativa). We have identified around 150 wild vines identified in 10 different habitats in Tuscan Maremma, 72 of which were propagated by cuttings and placed in a collection applying a specific training system (Totem). Both SSR and SNPs analyses revealed that true sylvestris V. v. sylvestris are clearly distinct from V. v. sativa, and that some supposed sylvestris are feral sativa, while others accessions are possible natural sativa-sylvestris crosses. Even the analysis of flower and berry aroma clearly separated sylvestris from sativa genotypes. Sylvestris flowers produced much more aroma than sativa ones, with also a clear distinction of female and male of sylvestris, while the berry of sativa had a concentration of aroma higher than sylvestris grapes. Some differences have been observed also among the relative ratios within the single aroma compounds.
Vitigni di vite silvestre recuperati in toscana: relazioni genetiche con i vitigni coltivati e analisi dei profili dei metaboliti secondari delle uve
D'ONOFRIO, CLAUDIO;SCALABRELLI, GIANCARLO
2016-01-01
Abstract
The wild grape, Vitis vinifera L. subsp. sylvestris (Gmelin, Hegi) is spontaneous in Europe and it is considered the ancestor of cultivated varieties (Vitis vinifera L. subsp. sativa). We have identified around 150 wild vines identified in 10 different habitats in Tuscan Maremma, 72 of which were propagated by cuttings and placed in a collection applying a specific training system (Totem). Both SSR and SNPs analyses revealed that true sylvestris V. v. sylvestris are clearly distinct from V. v. sativa, and that some supposed sylvestris are feral sativa, while others accessions are possible natural sativa-sylvestris crosses. Even the analysis of flower and berry aroma clearly separated sylvestris from sativa genotypes. Sylvestris flowers produced much more aroma than sativa ones, with also a clear distinction of female and male of sylvestris, while the berry of sativa had a concentration of aroma higher than sylvestris grapes. Some differences have been observed also among the relative ratios within the single aroma compounds.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
