terclim by ICS banner
IVES 9 IVES Conference Series 9 Altered lignans accumulation in a somatic variant of Tempranillo with increased extractability of polyphenols during winemaking

Altered lignans accumulation in a somatic variant of Tempranillo with increased extractability of polyphenols during winemaking


Vegetative propagation of grapevines can generate spontaneous somatic variations, providing a valuable source for cultivar improvement. In this context, natural variation in the composition of phenolic compounds in grapevine berries and seeds stands as a pivotal factor in crafting wines with diverse oenological profiles from the same cultivar. To deepen on the understanding of the physiological and genetic mechanisms driving somatic variation in grape phenolics, here we characterized a somatic variant from Tempranillo Tinto, the clone VN21, that exhibits an intense reduced berry skin cuticle and increased extractability of phenolic compounds during wine fermentation. Furthermore, VN21 seeds exhibit anomalous development characterized by diminished lignification, substantial anthocyanin accumulation, and an inherent inability to germinate.

Transcriptomic analysis identified alterations in the phenylpropanoid biosynthesis pathway, outstanding the down-regulation of a secoisolariciresinol dehydrogenase and the up-regulation of a pinorenisol-lariciresinol reductase genes in the berry skin of VN21 compared to the reference Tempranillo Tinto clone RJ43 at veraison stage. These genes encode enzymes in the lignans branch of the phenylpropanoids pathway that are compounds that can potentially reduce the risk of certain cancers and cardiovascular diseases. Ultra-performance liquid chromatography (UPHLC) analysis in both berry skin and seed confirmed a distinct phenylpropanoid accumulation pattern between VN21 and RJ43, with an overall reduction in the accumulation of lignan compounds in VN21.

The results obtained not only contribute to understand grapevine berry development and phenolic composition but also present opportunities for targeted breeding strategies aimed at enhancing desirable traits for wine production.


Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster


Yolanda Ferradás1,2*, Carolina Royo1, Silvia Yuste1, Pablo Carbonell-Bejerano1, Nuria Mauri1,3, Javier Ibáñez1, María José Motilva1, José Miguel Martínez-Zapater1

1 Instituto de Ciencias de la Vid y del Vino, Finca La Grajera, Ctra. De Burgos Km. 6, 26007 Logroño, Spain
2 Current address: Facultade de Bioloxía, Universidade de Santiago de Compostela, 15872 Santiago de Compostela, Spain
3 Current address: Centre for Research in Agricultural Genomics (CSIC-IRTA-UAB-UB), Cerdanyola del Vallès, Barcelona, Spain

Contact the author*


somatic variation, lignans, berry color, UPHLC, RNA-seq


IVES Conference Series | Open GPB | Open GPB 2024


Related articles…

The influence of the soil on the phenolic composition of both grapes and wines : “the Grenache observatory”

La composition fine des raisins de Grenache noir est mal connue. Il est généralement admis une certaine variabilité de comportement de ce cépage qui se manifeste principalement sur la couleur des vins. De nombreux facteurs peuvent être à l’origine de cette variabilité : matériel végétal, pratiques culturales, types de vinification et terroir. Un travail de recherche concernant ce cépage a été engagé dans la Vallée du Rhône.

Sensitivity of vis‐nir spectral indices to detect nitrogen deficiency and canopy function in cv. Barbera (Vitis vinifera L.) Grapevines

Precision nutrient management in viticulture can be addressed on the basis of a spatial characterization of within‐vineyard vine

Aromatic stability of Syrah and Petit Verdot tropical wines from Brazil

The production of fine wines in the Sub-middle of the São Francisco River Valley, Northeast of Brazil, is relatively recent, about twenty-five years ago. This region presents different characteristics

Accumulation of deleterious mutations in grapevine and its relationship with traits of interest for wine production and resilience

Deleterious mutations that severely reduce population fitness are rapidly removed from the gene pool by purifying selection. However, evolutionary drivers such as genetic drift brought about by demographic bottlenecks may comprise its efficacy by allowing deleterious mutations to accumulate, thereby limiting the adaptive potential of populations. Moreover, positive selection can hitchhike mildly deleterious mutations due to linkage caused by lack of recombination. Similarly, in the context of species domestication, artificial selection mimics these evolutionary processes, which can have undesirable consequences for production and resilience. In this study, we evaluated the extent of the accumulation of deleterious mutations and the magnitude of their effects (also known as genetic load) at the whole-genome scale for ca.

Hexose efflux from the peeled grape berry

After the onset of grape berry ripening, phloem unloading follows an apoplasmic route into the mesocarp tissue. In the apoplast, most of the unloaded sucrose is cleaved by cell wall invertases