The cultivation of the grapevine is obliged to the use of the rootstock. The rootstocks used derive from hybrids between vine species of American origin resistant to a dangerous parasite of the vine: the phylloxera. For the first time, thanks to a research carried out in collaboration between DiSAA and CREA, 379 accessions including grapevine rootstocks and related genetic materials have been identified with DNA fingerprinting. The work represents a fundamental point of reference for the genetic improvement of the vine.
In the figure: example of molecular-based classification (DNA) of the analyzed rootstocks.
MIGLIARO D DE LORENZIS G DI LORENZO G DE NARDI B GARDIMAN M FAILLA O BRANCADORO L CRESPAN M 2019 Grapevine Non- Vinifera Genetic Diversity Assessed by SSR Markers as a Starting-Point for New Rootstock Breeding Programs. American Journal of Enology and Viticulture. 70, 4: 390-397. DOI 10.5344/ajev.2019.18054, ISSN 0002-9254