Resumen de Ampelography and microsatellite DNA analysis of autochthonous and endangered grapevine cultivars in the province of Huesca (Spain)

J. Casanova, Pilar Mozas, Jesús María Ortiz Marcide

• The province of Huesca (Spain) is a traditional area for growing grapevines. There are archaeological evidences of their cultivation at least since the second century B.C. Nevertheless, in the last years the varietal diversity is markedly decreasing due to the rooting out of old plantations that are replaced with new broadly known varieties, since the market demands a certain standardization of the wine producing varieties. The objective of this study is to examine and characterise the existing varieties in the province of Huesca, mainly in vineyards planted before 1960. A total of 47 accessions were collected in 14 plots from 11 municipalities. Moreover 36 accessions from the region, planted at the Movera grapevine germplasm bank (Movera collection), located at Zaragoza (Spain) were included in the study. Ampelographic characterisation was carried out with 50 OIV descriptors for two consecutive years. Molecular characterisation was made with the following microsatellites: VVS2, VVMD5, VVMD7, VVMD27, VrZAG62 and VrZAG79. Ampelographic results were compared by cluster analysis. Most of the accessions were identified, being considered as new varieties: two white, Carrillera and Moscatel, and six red or black: Macicillo, Bomogastro, Angelina, Terrer, Parraleta Roja and Garnacha Gorda. Several new synonymies were detected, as Miguel for Vitadillo or Parrel for Trepat. Seven accessions remained unidentified. Out of the studied Vitis vinifera varieties, 23 were considered as endangered, indicating the valuable patrimony of the zone to be preserved.