RT journal article
T1 Analysis of Compounds with Oenological Interest in Somatic Variants of Grapevines
A1 Jiménez Cantizano, Ana Concepción
A1 Sancho Galán, Pau
A1 Fernández Barbero, Gerardo
A1 Palacios Macías, Víctor Manuel
A1 Amores Arrocha, Antonio
A2 Ingeniería Química y Tecnología de Alimentos
A2 Química Analítica
K1 Vitis vinifera
K1 grapevine
K1 somatic variants
K1 Graciano
K1 Tintilla de Rota
K1 anthocyanin
AB Grapevine varieties can be identified genetically by microsatellite markers. However, these molecular markers are not available to discriminate between somatic mutations that give rise to clones. Therefore, the study of compounds with oenological interest could be used to identify variability in grapevine somatic variants. In this research, sugars (glucose, fructose), acids (tartaric and malic acid) and polyphenols (22 phenolic compounds, including 13 anthocyanins) were analyzed in grape berries of two somatic variants known with different names-'Graciano' and 'Tintilla de Rota'-cultivated in the same vineyard under warm climate conditions. The organic acid results show significant differences between the performance of the two accessions. Regarding phenolic compound (excluding anthocyanins) content, significant differences were observed between the two accessions. Kaempferol, caftaric acid and epicatechin were the compounds responsible for the reported differences. Differences in anthocyanin content showed opposite behavior between 'Tintilla de Rota' and 'Graciano'. In this sense, 'Graciano' accession showed an increase in all forms of anthocyanins, with a remarkable increment of peonidin 3-O-glucoside. Principal component analysis of polyphenolic compounds revealed clearly distinguished behaviors concerning these compounds, besides showing similar tendencies between the two accessions during the ripening stage. These results could allow for the discrimination of the two accessions into somatic variants highlighting their individual identity.
PB MDPI
SN 2311-7524
YR 2022
FD 2022-01
LK http://hdl.handle.net/10498/26554
UL http://hdl.handle.net/10498/26554
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 05-nov-2026