Prospection and identification of backcrossings of traditional-heritage peruvian grapevine cultivars (Vitis vinifera L.) from Ica and Canete Valleys

Mendoza K.; Aliquo G.A.; Prieto J.A.; Torres M.R.; Blas R.; Flores J.; Casas A. · BIO Web of Conferences (2023) · DOI: 10.1051/bioconf/20235601004

Resumen

Grapevine (Vitis vinifera L.) was introduced in South America since the 16th century. In the Ica and Can.ete Valleys, the names "Quebranta Mollar", "Mollar"and "Prieta Mollar"are commonly used in reference to different colors of the berries of these varieties within the same bunch. This heterogeneity in terms of berry color, added to the background of historical documents, suggests that other varieties, besides Quebranta y Mollar Cano, could be involved in this generic denomination of Mollar vines. This work identified different phenotypes corresponding to some varieties used in winemaking and Pisco. The 10 accessions were collected on 9 different vineyards in the Ica and Can.ete valleys, and were analyzed using 20 molecular markers and 25 morphological descriptors according to the OIV. Our results showed that the collected sampled corresponded to 5 genotypes, three traditional cultivars and two unknown genotypes not registered previously. The three known cultivars were Listan Prieto, Quebranta and Mollar Cano. The two accessions corresponding to non-previously known varieties were Mollar de Ica and Prieta Mollar, generated from backcrosses between Quebranta and its parents. We also identified different phenotypic variations of Quebranta, which enriches the peruvian viticultural diversity. © The Author(s), published by EDP Sciences

Instituciones: Universidad Nacional Agraria La Molina