A phylogenomic study reveals the major dissemination routes of ‘Tempranillo Tinto’ in the Iberian Peninsula
‘Tempranillo Tinto’ is a black-berried Iberian cultivar that originated from a hybridization between cvs. ‘Benedicto’ and ‘Albillo Mayor’ . Today, it is the third most widely grown wine grape cultivar worldwide with more than 200,000 hectares of vineyards mostly distributed along the Iberian Peninsula, where it is also known as ‘Cencibel’, ‘Tinta de Toro’, ‘Tinta Roriz’, and ‘Aragonez’, among other synonyms. Here, we quantified the intra-varietal genomic diversity in this cultivar through the study of 35 clones or ancient vines from seven different Iberian wine-making regions. A comparative analysis after Illumina whole-genome sequencing revealed the presence of 1,120 clonal single nucleotide variants (SNVs). A phylogenetic network from shared SNVs grouped the samples according to their geographic origin. Combined with genome re-sequencing data from the two ‘Tempranillo Tinto’ parents, this network clearly points out the Ebro River Valley as the region of origin of this cultivar. It also indicates one major historical dissemination route that likely progressed westwards towards the main wine-making regions found across the Duero River Valley and to the South in Portugal. Collectively, the results obtained in this study shed light on the origin and historical dispersal of ‘Tempranillo Tinto’ in the Iberian Peninsula, and release informative SNVs for the differentiation of intra-cultivar lineages.
Acknowledgements: This work is part of the project “Diversidad genética en la vid y adaptación al cambio climático” (PID2020-120183RB-I00), funded by MCIN/AEI/10.13039/501100011033
1) Ibáñez J. et al. (2012) Genetic origin of the grapevine cultivar Tempranillo. Am. J. Enol. Vitic. 63(4): 549-553, DOI 10.5344/ajev.2012.12012
Issue: ICGWS 2023
1 Instituto de Ciencias de la Vid y del Vino, Finca La Grajera, Ctra. de Burgos Km. 6, 26007 Logroño
2 Centro Nacional de Biotecnología, C/Darwin 3, 28049 Madrid
3 Facultad de Biología, Universidad de Santiago de Compostela, 15872 Santiago de Compostela