Molecular diversity within clones of cv. Tannat (Vitis vinifera)

Techera, AG; Jubany, S; De Leon, IP; Boido, E; Dellacassa, E; Carrau, FM; Hinrichsen, P; Gaggero, C

Abstract

DNAs from 9 clones of cv. Tannat (Vitis vinifera) were analyzed at 89 microsatellite loci. Only one, VMCNg 1d12, showed a differential pattern that separated the clones in two groups. The statistical analysis of concentrations for aroma compounds from microvinifications also resulted in the same two groupings of clones. Many analyzed microsatellite loci amplified only one allele, implying that Tannat is a highly homozygous variety. For a given set of 15 microsatellites the level of homozygosity was 53 % for Tannat, in contrast to 6 % for Pinot, 20 % for both Cabernet Franc and Chardonnay and 33 % for Cabernet Sauvignon. We provide molecular data for Tannat, originating from southwestern France and nowadays becoming the emblematic cultivar of Uruguayan fine red wines. We also report a correlation between aroma-related compounds and molecular markers within clones of a cultivar.

Más información

Título según WOS: Molecular diversity within clones of cv. Tannat (Vitis vinifera)
Título según SCOPUS: Molecular diversity within clones of cv. Tannat (Vitis vinifera)
Título de la Revista: VITIS
Volumen: 43
Número: 4
Editorial: JKI-INSTITUT REBENZUCHTUNG
Fecha de publicación: 2004
Página de inicio: 179
Página final: 185
Idioma: English
Notas: ISI, SCOPUS